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MAX6369KA/V+ - SOT-23-8 Pin-Selectable Watchdog Timer | ADI
The Analog Devices (formerly Maxim Integrated) MAX6369KA/V+ is a pin-selectable watchdog timer supervisor housed in a miniature 8-pin SOT-23 (KA) package. It monitors microprocessor activity and asserts an active-low reset when the system stops toggling the watchdog input within a programmed timeout. Operating from a +2.5V to +5.5V supply, the device draws only 8 µA of supply current and requires no external timing components, simplifying board layout in space-constrained designs. This variant is qualified to the AEC-Q100 automotive standard, making it suitable for automotive as well as industrial applications. A watchdog timer (WDT) is a hardware safety circuit that resets a microprocessor when its embedded firmware fails to service a periodic input within a defined window. Watchdog supervisors belong to the broader supervisor IC family (voltage supervisors, reset ICs, and sequencers) within the power management IC category. By offloading software-lockup detection from the microcontroller to a dedicated external device, designers add an independent safety net that operates even when the host CPU has halted, frozen, or branched into unintended code. Key features include pin-selectable watchdog timeout and reset delay windows, an open-drain active-low RESET output, and a watchdog disable input that allows the host to halt supervision during sleep or debug. The MAX6369KA/V+ shares the SOT-23-8 pinout with other members of the MAX6369-MAX6374 family, which differ primarily in default timeout values and reset polarity. This family-wide pin compatibility enables a single PCB layout to be reused across multiple timeout/polarity combinations. The device integrates a precision internal oscillator and timing logic, eliminating external RC components. The MAX6369KA/V+ uses open-drain reset architecture, which allows wired-OR connection with other supervisors in multi-rail systems. Its AEC-Q100 qualification makes it appropriate for automotive electronic control units (ECUs), body controllers, and battery management systems where component reliability across temperature extremes is required. Typical applications include automotive ECU watchdog supervision, industrial PLC processor monitoring, medical device firmware safety, IoT edge-node supervisory circuits, and any microcontroller-based product that requires a hardware watchdog timer to detect firmware lockups. When designing with the MAX6369KA/V+, observe the WDI pulse-width requirement and the minimum VCC ramp rate. For multi-rail systems, the open-drain output can be shared with other supervisors through a pull-up resistor to the logic-level rail. Refer to the manufacturer datasheet for the exact timing selection logic on the SET pins. This page consolidates distributor pricing, AEC-Q100 verified specs, drop-in alternatives from the same family and competitors, and practical design notes not found on a single distributor listing.
MAX6383XR31D2+T - 3.08V µP Supervisor, SC-70-3 | Maxim Integrated
The Maxim Integrated (Analog Devices) MAX6383XR31D2+T is a microprocessor supervisor circuit in a 3-pin SC-70 surface-mount package that monitors a +3.08V power supply rail with a factory-trimmed reset threshold. Part of the MAX6381–MAX6390 family, it asserts an active-low open-drain reset whenever VCC falls below the threshold and holds reset for a minimum timeout period after VCC returns above the threshold, ensuring clean processor startup. The device operates from +1.8V to +5.0V while consuming only 3 µA of supply current, making it well suited to battery-powered and energy-harvesting systems. A microprocessor (µP) supervisor, also called a voltage supervisor or reset IC, is a dedicated power-management device that monitors one or more system rails and forces the host processor into a known-good state by holding it in reset whenever the rail is below a safe operating voltage. In the broader taxonomy, supervisors sit under Power Management ICs alongside voltage regulators, DC-DC converters, and battery management devices, providing deterministic power-on and brown-out behavior that bare POR (power-on reset) circuits inside a microcontroller cannot always guarantee under slow-rising or noisy rails. Key features of the MAX6383XR31D2+T include a factory-set 3.08V threshold (suffix 31), an open-drain / open-collector active-low RESET output suitable for wired-OR with other supervisors, a minimum reset timeout of approximately 40 ms (D2 suffix), and a tiny SC-70-3 (SOT-323) footprint measuring roughly 2.0 x 2.1 mm. The wide 1.8V to 5.0V operating range covers 2.5V, 3.3V, and 5V rails, and the 3 µA quiescent current minimizes load on the monitored rail. The part is rated for -40C to +85C operation and is supplied on tape-and-reel with the +T suffix. Internally, the device combines a precision bandgap reference, a comparator, a timeout timing block, and an open-drain MOSFET output driver. The comparator compares VCC against the internal reference; the timer block uses an internal oscillator and counter to generate the reset pulse width. Compared with a discrete RC reset circuit, this integrated approach provides tighter threshold accuracy (typically ±2.5% over temperature), immunity to capacitor leakage, and a guaranteed minimum reset pulse width that prevents processor latch-up on marginal power transitions. Typical applications include reset supervision for 3.3V MCUs and DSPs in IoT sensor nodes, handheld medical and instrumentation devices, portable consumer electronics, and any low-power embedded design where deterministic power-on behavior is required. The small SC-70-3 footprint enables placement directly at the IC supply pin to minimize trace-induced false resets. When designing with this part, add a pull-up resistor (typically 10 kOhm to 100 kOhm) from RESET to VCC because the output is open-drain. Place the supervisor as physically close as possible to the processor's VCC pin and bypass it with at least 0.1 µF to prevent noise-induced reset glitches. This page synthesizes distributor pricing, drop-in supervisor alternatives from the MAX6383 family and competitors, and practical design notes not found in the standalone datasheet.
MAX6385XS43D4-T - 4.38V µP Reset IC, SC-70-4 | Maxim Integrated
The Analog Devices (formerly Maxim Integrated) MAX6385XS43D4-T is a single-channel microprocessor (µP) reset/supervisor circuit housed in a 4-pin SC-70 (XS) surface-mount package. It monitors a single power-supply rail and asserts a push-pull/totem-pole active-low reset output whenever VCC falls below the factory-trimmed threshold of 4.38 V (the "43" in the part number), holding the reset line low through the factory-set timeout period after VCC recovers. The device consumes only 3 µA of supply current at +1.8 V, making it suitable for battery-powered and always-on systems. A microprocessor supervisory circuit is a type of power management IC (also called a voltage supervisor or reset IC) that protects digital logic by ensuring the system only starts executing code when the supply voltage is within a valid operating range. These devices belong to the hierarchy: reset supervisor -> power supply supervisor -> power management IC -> semiconductor. They are essential companions to microcontrollers, DSPs, ASICs, and FPGAs whose brown-out behavior is undefined and can cause latch-up, memory corruption, or runaway code execution. Key features of the MAX6385XS43D4-T include a factory-set 4.38 V threshold with ±2.5% accuracy over the -40 °C to +125 °C automotive temperature range, a 4-pin SC-70 package occupying roughly 2.0 × 2.1 mm of board area, and a push-pull (totem-pole) output that does not require an external pull-up resistor. The reset signal is active-low, matching the standard convention for µP reset inputs. The MAX6381–MAX6390 family shares a common architecture but offers different threshold voltages and package options, allowing designers to pin-select the appropriate threshold without firmware changes. Architecturally, the MAX6385 uses an on-chip bandgap reference and a precision comparator to compare VCC against the factory-trimmed threshold. A built-in delay generator controls the reset assertion time after VCC crosses the threshold (here, the "D4" code indicates the timeout duration family). The push-pull output stage can both sink and source current, enabling direct drive of the µP reset pin without external biasing components. Typical applications include microcontroller supply monitoring in IoT nodes, automotive body and chassis ECUs, industrial PLCs, point-of-sale terminals, and any battery-backed system that must recover deterministically from a brown-out event. Designers also use these supervisors to add safety-grade monitoring to ASICs and FPGAs whose internal power-on-reset is insufficient for their downstream circuitry. When selecting a supervisor, ensure the threshold sits comfortably above the µP's minimum operating voltage and below the regulated VCC nominal to provide adequate noise margin. For multi-rail designs, use one MAX6385 per monitored rail, or upgrade to the dual-rail members of the MAX6381–MAX6390 family.
MAX6468US46D3 - 4.625V Push-Pull Microprocessor Supervisor | Maxim Integrated
The Maxim Integrated MAX6468US46D3 (now under Analog Devices Inc./Maxim Integrated) is a low-power microprocessor (μP) supervisory reset circuit with edge-triggered, one-shot manual reset, offered in a 4-pin SOT143 (TO-253-4) surface-mount package. It monitors a single power-supply rail and asserts a reset output when VCC drops below the factory-trimmed 4.625V threshold, preventing code execution errors during brownout events. The device integrates a precision bandgap reference, comparator, and timing network in a single 1-chip solution. A microprocessor supervisor (also called a voltage supervisor or reset IC) is a type of power management IC that observes the system supply rail and generates a clean reset signal for the host controller whenever the rail is out of tolerance. Supervisors sit in the power-management hierarchy between raw supply regulation and the digital logic they protect; they are typically the last device to release reset and the first to assert it, ensuring deterministic processor boot behavior. Key features of the MAX6468US46D3 include a factory-set reset threshold of 4.625V, a push-pull (totem-pole) active-low RESET output, an edge-triggered manual-reset input (MR) that produces a single minimum-width reset pulse regardless of MR assertion duration, and a low quiescent supply current suitable for always-on battery-backed monitoring. The SOT143-4 footprint keeps the solution under approximately 2.9 mm² of board area, making it ideal for space-constrained portable and embedded designs. Internally, the part combines a precision voltage reference, a comparator, and a one-shot pulse generator. When VCC falls below the threshold, the comparator drives RESET low and the one-shot extends the pulse to the minimum guaranteed reset width, allowing downstream ASICs, FPGAs, or microcontrollers to complete their initialization routine even if VCC recovers rapidly. Typical applications include supervisory reset for 5V-tolerance microcontrollers, FPGA configuration controllers, battery-pack fuel-gauge ICs, and any hand-held, battery-powered, or industrial module that requires a guaranteed power-on reset plus a manual reset button. The automotive temperature grade (-40°C to +125°C) also makes it suitable for under-hood and chassis electronics. When designing with this part, place the bypass capacitor immediately adjacent to the VCC pin and keep the MR trace short to avoid stray-induced false resets. Verify that the 4.625V threshold matches the regulated rail tolerance of your system supply. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the standalone manufacturer datasheet.
MAX6468US46D3+T - 4.625V MPU Supervisor w/ Manual Reset | Maxim
The Analog Devices (formerly Maxim Integrated) MAX6468US46D3+T is a microprocessor (µP) supervisory reset circuit with edge-triggered, one-shot manual reset, packaged in a 4-pin SOT-143 (TO-253-4). It monitors a single power-supply voltage and asserts an active-low reset whenever VCC falls below the factory-trimmed threshold of 4.625 V (the '46' code in the part number), holding reset low for a minimum timeout of 150 ms (the 'D3' suffix code) after VCC rises back above the threshold. A supervisor (or voltage supervisor / reset IC) is a power-management device whose job is to keep a microcontroller or DSP in a known safe state during power-up, power-down, and brown-out events. It belongs to the broader category hierarchy supervisor -> power-supply support circuit -> power-management IC -> semiconductor. The MAX6468 family combines a precision voltage reference, a comparator, a reset output stage (push-pull totem-pole, active-low), and a debounced manual-reset input that delivers a guaranteed single one-shot pulse even if the MR input is held low for an extended period. Key features include a ±2.5% reset threshold accuracy over temperature, a quiescent supply current of typically 5 µA, an open-drain/push-pull reset output (this variant is push-pull), and a wide operating temperature range of -40 °C to +125 °C for automotive-grade deployment. The SOT-143-4 footprint is among the smallest 4-pin supervisory packages available, ideal for space-constrained portable designs. The MAX6468 architecture uses a precision bandgap reference, comparator, and timing generator on a single die. The internal one-shot ensures that even a momentary or bouncing manual-reset press produces exactly one clean reset pulse of the specified width, simplifying firmware debounce and eliminating missed-reset edge cases common with simpler supervisor ICs. Typical applications include µP/µC brown-out protection in embedded systems, microcontroller reset sequencing in battery-powered portables, automotive ECU and body-controller supervisors, FPGA/CPLD configuration-supervision, and any system requiring a guaranteed reset pulse after power stabilization. The MAX6468 is also widely used in point-of-sale terminals, industrial PLCs, and consumer electronics where clean power-up behavior is mandatory. When designing with this device, ensure that the VCC ramp rate and decoupling meet the datasheet's minimum requirements. Because the reset output is push-pull (totem-pole), no external pull-up resistor is required - simplifying BOM count. The MR input is debounced internally, but a 1 nF to 10 nF capacitor may be added in noisy environments for additional immunity. This page synthesizes distributor pricing from Mouser, DigiKey, and Heisener, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
MAX6718UKYDD3 - Dual µP Supervisor, SOT-23-5 | Analog Devices
The Analog Devices MAX6718UKYDD3 is a dual-channel ultra-low-voltage microprocessor (µP) supervisory circuit from the MAX6715-MAX6729 family, housed in a 5-pin SOT-23 (SC-74A / SOT-753) surface-mount package. It is designed to monitor two system power-supply voltages and assert a reset signal when either supply drops below its preset threshold, ensuring reliable µP operation during power-up, power-down, and brownout events. A supervisory circuit (also called a voltage supervisor or reset IC) is a power management device that monitors one or more system rails and holds a processor in reset until the rails are stable and within tolerance. The category hierarchy is: supervisor -> reset IC -> power management IC -> semiconductor. Supervisors are essential in any system using an MCU, SoC, or FPGA, because processors can latch up or execute undefined code when supply voltages are out of specification during transient events. The MAX6718UKYDD3 features a factory-trimmed threshold set identified by the "YDD3" suffix (VCC1 reset threshold around 2.93V per the MAX6718 selection table, with VCC2 tracking), an active-low push-pull (totem-pole) RESET output, and a minimum reset timeout of 140 ms that gives downstream processors ample time to stabilize after the rails recover. The SOT-23-5 package enables placement in tight PCB footprints typical of space-constrained designs. The device integrates a precision bandgap reference, dual comparators, and timing logic on a single die, drawing only a few microamps of quiescent current. This makes it well-suited for battery-powered and always-on systems where supervisor current consumption directly impacts standby life. Typical applications include reset supervision in IoT sensor nodes, wearable health monitors, portable medical devices, industrial controllers, and any embedded MCU/SoC rail monitoring where a clean, glitch-free reset signal is required. The wide operating temperature range of -40C to +85C supports both consumer and industrial environments. When designing with this part, place the IC as close as possible to the µP reset pin to minimize trace-induced noise, and ensure VCC is well-decoupled with a 0.1uF ceramic capacitor. The push-pull output stage does not require an external pull-up resistor, simplifying layout compared to open-drain alternatives. This page synthesizes distributor pricing, parametric alternatives, and practical reset-topology design notes not found in the manufacturer datasheet alone.
MAX6718UKYDD3+T - Dual µP Supervisor, SOT-23-5 | Maxim Integrated
The Maxim Integrated (Analog Devices) MAX6718UKYDD3+T is a dual ultra-low-voltage microprocessor supervisory circuit in a 5-pin SOT-23 (SC-74A, SOT-753) surface-mount package. It monitors two system power-supply voltages, asserts an active-low reset when either rail falls below its threshold, and features a minimum 140 ms reset timeout. The device belongs to the MAX6715-MAX6729 family of ultra-low-voltage µP supervisors. A microprocessor supervisory circuit (also called a voltage supervisor or reset IC) is a power management IC that monitors one or more system supply rails and asserts a deterministic reset signal to the host µP, µC, FPGA, or ASIC whenever a rail sags out of specification. Supervisors sit between the DC-DC converters/regulators and the digital logic they protect, forming the bridge between the power management subsystem and the digital control subsystem. The MAX6718 family extends this function to ultra-low-voltage cores (down to sub-1 V thresholds), making them suitable for modern processors with low-voltage rails. Key features include factory-trimmed or resistor-adjustable threshold options, push-pull (totem-pole) active-low RESET output, low quiescent current suitable for battery-powered designs, and a guaranteed minimum reset timeout of 140 ms after the supply recovers above threshold. The SOT-23-5 (SC-74A/SOT-753) package is one of the smallest industry-standard footprints and offers excellent thermal performance for the part's low dissipation. The MAX6718 uses an internal precision reference and comparator architecture per monitored rail. Threshold accuracy is factory-trimmed to within a few percent, providing clean rail monitoring without external precision components. The push-pull output stage can directly drive a µP reset input without external pull-up resistors, simplifying PCB layout and BOM. Typical applications include supervisory functions in embedded processors, FPGA/ASIC core and I/O rail monitoring, IoT edge nodes, battery-powered portable equipment, industrial controllers, and any system that requires deterministic power-on reset behavior. The MAX6718 is particularly well suited to designs where PCB area is at a premium and an SOT-23 supervisor outperforms larger SOIC or µMAX solutions. When designing with the MAX6718, place the bypass capacitor on VCC as close to the pin as possible (typically 0.1 µF ceramic). Ensure the trace impedance from the monitored rail to the sense input is low to avoid false resets during load transients. The reset output is open-drain or push-pull depending on the variant letter; check the order code to confirm the topology. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.
MAX6718UKYDD3-T - Dual uP Supervisor, SOT-23-5 | Maxim Integrated
The Maxim Integrated (Analog Devices) MAX6718UKYDD3-T is a dual-rail, ultra-low-voltage microprocessor supervisor IC housed in a 5-pin SOT-23 (SC-74A/SOT-753) package. It monitors two system supply voltages and asserts an active-low reset whenever any monitored rail falls below its factory-trimmed threshold, then holds reset for a minimum timeout after all rails recover. The YDD3 suffix denotes specific factory-trimmed thresholds for the two monitored inputs. A microprocessor supervisor (also called a voltage supervisor or reset IC) is a power management device that monitors one or more system supply rails and generates a clean reset signal to the host microcontroller or processor when those rails become unstable. Supervisors sit in the hierarchy: voltage supervisor -> supervisor & reset IC -> power management IC -> semiconductor. They are essential for deterministic boot behavior, brown-out protection, and protection against code execution at under-voltage conditions where MPU behavior is undefined. Key features of the MAX6718 include push-pull (totem-pole) reset output architecture, factory-trimmed thresholds (no external resistors required), a minimum reset timeout of 140 ms (suffix D3 selects the timeout option), and ultra-low quiescent current suitable for battery-backed systems. The SOT-23-5 footprint makes it one of the smallest supervisor ICs available, ideal for space-constrained designs. The device uses an internal bandgap reference and precision comparators to monitor the VCC and an auxiliary input. When either rail drops below its threshold, the RESET output pulls low; after both rails recover and the timeout elapses, RESET releases. The YDD3 suffix decodes per the Maxim datasheet to specific threshold voltages and the 140 ms minimum timeout. Typical applications include microprocessor reset circuits in portable/battery-powered equipment, embedded controller boards, IoT edge nodes, industrial sensors, and any system requiring reliable brown-out protection. The dual-rail monitoring makes it particularly useful for designs with separate digital and analog or core and I/O supplies. When designing with this device, ensure the monitored rails' nominal voltages are compatible with the YDD3 threshold option. Place the bypass capacitor as close as possible to the VCC pin and verify that the reset output drive capability matches the MPU reset pin input current requirements. This page synthesizes distributor pricing, factory-trimmed threshold options across the MAX6715-MAX6729 family, and design notes not consolidated in the manufacturer datasheet, providing information gain over single-distributor listings.
MAX6762TATAD3 - Dual Window Detector 3.3V/Adj | Analog Devices
The Analog Devices (formerly Maxim Integrated) MAX6762TATAD3 is a low-power, dual-voltage window detector (processor supervisor) in an 8-pin TDFN-EP (3x3) package with exposed pad for enhanced thermal dissipation. The MAX6762 monitors two independent system voltage rails - one factory-trimmed to 3.3V and the other adjustable down to 0.4V - asserting independent active-low RESET and active-low /RST outputs whenever either rail falls outside its programmed window. The part belongs to the MAX6754-MAX6764 family of window detectors and is offered in tape-and-reel packaging as the MAX6762TATAD3+T suffix variant. A window detector is a specialized supervisory circuit that asserts a reset or interrupt signal not only when a supply drops below a minimum threshold (undervoltage) but also when it rises above a maximum threshold (overvoltage). Window detectors belong to the broader class of voltage supervisors and reset ICs, which in turn sit within the power management IC hierarchy. Compared with single-threshold supervisors that only guard against brownouts, window detectors protect downstream ASICs, FPGAs, and processors from both kinds of supply excursion - critical for 12V/24V industrial buses, automotive load-dump transients, and any rail that must remain inside a tightly bounded operating envelope. Key features include a 5 uA (typical) quiescent current that suits always-on battery monitoring, factory-trimmed 3.3V nominal threshold on the first channel with +/-1.5% accuracy over temperature, an adjustable second channel settable from 0.4V up to VCC, push-pull active-low /RST output with a factory-fixed 185 ms minimum timeout period (the T3 suffix), and an open-drain /RESET output that can be wire-ORed with other supervisors. Operating from a wide 1V to 5.5V VCC supply and rated -40C to +125C, the part is automotive-grade and supports automotive temperature profiles. The MAX6762 uses a precision bandgap reference and trimmed resistor divider network to establish its 3.3V threshold; the second channel employs an external resistor divider on the ADJ pin. The internal comparator architecture provides fast response to threshold crossings while the 185 ms timeout masks short transients such as inrush bounces during power-up. The open-drain /RESET pin allows the part to be paralleled with another supervisor or to level-shift to a higher-voltage logic domain using an external pull-up resistor. Typical applications include multi-rail FPGA/ASIC power sequencing and monitoring, automotive ECU brownout/overvoltage protection, industrial 24V PLC and sensor rail supervision, battery-pack cell-balancer fault detection, and point-of-load monitoring in telecom hardware. In any application requiring proof that the supply remained inside an undervoltage-AND-overvoltage window during system startup, the MAX6762TATAD3 is a compact, low-power solution. When designing with this part, place the TDFN-EP exposed pad on a contiguous ground copper pour to keep junction temperature within spec under worst-case VCC=5.5V and -40C ambient. The /RESET open-drain output requires an external pull-up resistor to VCC or to the logic supply being monitored. The ADJ pin divider should use 1% or better tolerance resistors to preserve the factory-specified 1.5% threshold accuracy.
MAX6762TATAD3+T - Dual Window Detector, 3.3V/Adj, TDFN-8 | ADI
The Analog Devices (formerly Maxim Integrated) MAX6762TATAD3+T is a low-power, dual-voltage window detector IC that monitors undervoltage and overvoltage conditions on two system power rails simultaneously. Housed in an 8-pin TDFN-EP (3x3 mm) package, it integrates one fixed 3.3V threshold and one adjustable threshold (set via external resistors down to 0.4V), with open-drain and push-pull reset outputs in a 2-channel configuration. A window detector is a specialized supervisory IC that asserts a reset signal whenever a monitored supply voltage falls outside a programmable upper/lower window. It belongs to the broader family of voltage supervisors (also called voltage monitors or reset ICs) within the power management IC category, providing a critical safety net for microcontrollers, FPGAs, ASICs, and DSPs that must operate only when their rails are within spec. Key features include a wide VCC supply range from 1V to 6V, low quiescent current suitable for battery-powered systems, factory-trimmed threshold accuracy, and a typical active timeout period of 185 ms after a fault clears. The TDFN-EP package provides a thermal pad that reduces junction-to-ambient resistance, supporting reliable operation across the -40C to +125C automotive/industrial temperature range. Internally the MAX6762 uses a precision bandgap reference and matched comparators with hysteresis, allowing clean noise immunity on the monitored rails without external filtering. Two independent reset channels (one push-pull active-low, one open-drain active-low) give the designer flexibility to interface with mixed logic families or wired-OR multiple supervisor outputs. Typical applications include multi-rail monitoring of 3.3V core and 1.2V/1.8V auxiliary rails in portable instruments, automotive ECU power-good sequencing, battery management systems that need both over-voltage and under-voltage alarms, and industrial PLCs where a brown-out on any supply must trigger a controlled system reset. The dual-window architecture reduces component count versus using two single-channel supervisors. When designing with this part, place the TDFN-EP thermal pad on a properly sized copper pour and route the two monitored voltages directly to their IN pins with minimal trace resistance. Decouple VCC with a 0.1 uF ceramic capacitor close to the pin; do not rely on the monitored rail capacitance to hold VCC up during transients. This page synthesizes distributor pricing, drop-in TDFN-8 alternatives from the MAX6760/6761/6763/6764 family and competing supervisors from TI, plus practical design notes on threshold-setting resistors and reset-output wiring that go beyond the manufacturer datasheet.
MAX6762TATAD3-T - Dual Window Detector, 3.3V/Adj, TDFN-8 | Maxim
The Analog Devices (formerly Maxim Integrated) MAX6762TATAD3-T is a low-power, single/dual-voltage window detector supervisor housed in an 8-pin TDFN-EP (3x3 mm) package with exposed pad. It monitors undervoltage and overvoltage conditions on two supply rails: one factory-trimmed at 3.3 V and one externally adjustable down to 0.4 V, with an active-low RESET output and an open-drain/push-pull second channel. Per the manufacturer datasheet, the device operates from a single 1.0 V to 5.5 V VCC supply, draws only 8 uA quiescent current, and offers an active-low timeout period of 185 ms. A window detector is a specialized voltage supervisor IC that asserts a reset or interrupt when its monitored supply moves outside a programmable voltage window (between a lower undervoltage threshold and an upper overvoltage threshold). It sits in the broader power management IC hierarchy as a sub-category of supervisors and reset ICs, commonly placed between a regulator and a microcontroller, ASIC, or FPGA to guarantee the load only operates within safe supply limits during power-up, brown-out, and transient events. Key features include ±1.5% threshold accuracy over temperature, an integrated 185 ms reset timeout, low 8 uA supply current, and a small 3x3 mm TDFN package with an exposed thermal pad that improves heat spreading and allows an unobtrusive PCB layout. The MAX6762TATAD3-T ships on tape-and-reel (the -T suffix) and is qualified to the -40 C to +125 C automotive temperature range, making it suitable for harsh environments. The device uses a precision bandgap reference and trimmed resistor divider to set the fixed 3.3 V channel, while the second channel uses an external resistor divider referenced to the internal 0.4 V bandgap. This dual-monitor architecture lets one IC replace two single-channel supervisors, saving board area in dual-rail systems such as 3.3 V I/O plus 1.0/1.2/1.5/1.8 V core voltage monitoring. Typical applications include microprocessor/ASIC/FPGA core and I/O rail supervision in automotive infotainment, industrial PLCs, telecom line cards, and portable battery-powered equipment where low quiescent current extends battery life. The dual-window capability makes it especially useful in systems that must detect both undervoltage and overvoltage on the same supply. When designing with the MAX6762TATAD3-T, place the 0.1 uF VCC bypass capacitor within 3 mm of the VCC pin and connect the exposed pad (EP) to a grounded copper pour of at least 25 mm^2 for rated thermal performance. The OUT/active-low RESET pin is open-drain on some variants and push-pull on others, so verify the variant code (TATxx in the part number) before wiring the pull-up resistor. This page synthesizes distributor pricing, drop-in alternatives drawn from the same MAX6762 family, and practical layout guidance that goes beyond the manufacturer datasheet to accelerate evaluation and sourcing decisions.
MAX705ESA+T - 4.65V Threshold μP Supervisor, 8-SOIC | Maxim Integrated
The Maxim Integrated (now Analog Devices) MAX705ESA+T is a low-cost microprocessor (μP) supervisory IC housed in an 8-pin NSOIC (SOIC-8) package. It integrates power-supply monitoring, battery-backup switching, and a manual-reset input around a single 4.65 V reset threshold, and it is supplied on tape and reel (the +T suffix) for high-volume assembly. A microprocessor supervisor is a specialized power-management IC that watches the host system's VCC rail and asserts a clean reset signal to the MCU/MPU whenever that rail drops below a safe operating threshold or when the MCU is stuck and needs a fresh start. This product category sits inside the broader power-management hierarchy and reduces the number of discrete comparators, RC delays, and FET switches that older designs needed. Supervisors are widely used in embedded, industrial, and IoT systems where deterministic startup behavior is critical. Key features of the MAX705ESA+T include a 4.65 V ±2.5% reset threshold, a 200 ms minimum reset pulse width, an active-low push-pull RESET output, a manual-reset input (MR), and a power-fail comparator (PFI/PFO) for early warning of an impending supply collapse. The device operates over a 1.2 V to 5.5 V supply range and consumes roughly 200 μA of quiescent current, making it suitable for battery-backed designs. Internally, the part combines a precision bandgap reference, a comparator string, and timing logic that generates the guaranteed reset pulse. The MAX705 family shares the same 8-pin SOIC footprint as the MAX706/MAX707/MAX708/MAX813L parts, allowing PCB layout reuse across threshold and reset-polarity variants. The push-pull (totem-pole) output stage drives CMOS/TTL loads directly without a pull-up resistor. Typical applications include MCU reset supervision in industrial controllers, battery-backed SRAM/RTC switching, point-of-sale terminals, IoT edge nodes, embedded Linux boards, and any design requiring a clean, deterministic power-on reset. Designers also use the power-fail comparator to detect a low-battery condition before the rail collapses. When designing with this part, place the 0.1 μF bypass capacitor within 5 mm of the VCC pin, and verify that the chosen reset threshold sits below the MCU's minimum operating voltage. The MAX705ESA+T is pin-compatible with most MAX706/MAX707/MAX708/MAX813L variants in the same package. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not consolidated in the manufacturer datasheet, helping engineers select between same-family and cross-brand supervisory ICs.
MAX7219 - 8-Digit LED Display Driver, Serial I/F | Analog Devices
The MAX7219 from Analog Devices (formerly Maxim Integrated) is a compact serial input/output common-cathode display driver that interfaces microprocessors or microcontrollers to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs, all in a 24-pin PDIP, SO, or CERDIP package with a single external resistor setting segment current. An LED display driver is a specialized interface IC that sits between a low-current logic controller (typically a microcontroller running at 3.3V or 5V CMOS levels) and high-current LED arrays. The driver integrates the BCD code-B decoder, multiplex scan circuitry, segment drivers, digit drivers, and an 8x8 static RAM that stores each digit state, removing the burden of bit-banging refresh from the host. In the broader taxonomy, the MAX7219 belongs to LED drivers -> display drivers -> power management & interface ICs -> semiconductors. Key features of the MAX7219 include a 4-wire (SPI/QSPI/MICROWIRE-compatible) serial interface, individual digit addressing without rewriting the entire display, a 150 µA low-power shutdown mode (with the analog circuits still active), segment brightness modulation via duty-cycle control, and built-in scan limit and display-test registers. The device operates from a single 4.0V to 5.5V supply, sinks up to 40 mA per segment, and supports cascading via DOUT for larger displays. The MAX7219 architecture uses an internal oscillator to multiplex the 8 digit lines sequentially while the on-chip static RAM holds the digit data, so the host only writes when content changes. This eliminates the CPU overhead typical of software-multiplexed LED designs and provides flicker-free, uniform brightness across all digits. The SPI-like interface accepts clock rates up to 10 MHz, allowing fast full-frame updates even for cascaded chains. Typical applications include 8-digit 7-segment numeric readouts, 8x8 LED matrix modules (per MAX7219 channel), bar-graph meters, industrial control panel displays, point-of-sale terminals, instrumentation front panels, and hobby/maker 8-digit scrolling text displays. The same IC drives both 7-segment displays and bare discrete LEDs because each segment and digit line is independently accessible. When designing with the MAX7219, choose the external resistor (ISET) carefully because it sets the segment current and therefore brightness; typical values are 9.53 kA for 20 mA segments or 47 kA for lower-current displays. Always include 0.1 µF and 10 µF decoupling caps close to V+ and GND, and use daisy-chained DOUT connections when more than 8 digits are needed. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
MAX7219ENG - 8-Digit LED Display Driver, 24-PDIP | Maxim Integrated
The Maxim Integrated MAX7219ENG is a compact, serial input/output common-cathode display driver that interfaces microprocessors (µPs) to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. The device integrates a BCD B-code decoder, multiplex scan circuitry, segment and digit drivers, and an 8x8 static RAM for digit storage, all on a single chip housed in a 24-pin narrow PDIP package. A LED display driver is a specialized integrated circuit that takes serial or parallel data from a host microcontroller and converts it into the segmented current paths required to illuminate 7-segment displays, dot-matrix panels, or discrete LED arrays. The MAX7219 belongs to the category of serially-interfaced LED drivers, which sit between a host MCU and the high-current LED loads, providing constant-current segment drive, multiplexed digit scanning, brightness modulation, and diagnostic feedback. This category simplifies PCB layout versus discrete transistor multiplexing, reduces MCU pin count, and adds features like individual LED test, blanking, and shutdown. Key features include an on-chip BCD decoder that supports decode-digit (0-9, A-F) and no-decode modes, individual segment control, 150μA low-segment current loop shutdown, and a serial interface clocked up to 10 MHz that is compatible with SPI, QSPI, and Microwire. The driver operates from a 4V to 5.5V supply, supports a 320 mA maximum segment current, and provides 16-step digital brightness control plus an analog global brightness adjustment pin. Industrial-grade MAX7219ENG units are specified for 0°C to +70°C ambient operation. The architecture combines a 16-bit shift register feeding an 8-byte digit RAM, an internal multiplexer clocked by an external RSET resistor that sets the segment current, and on-chip comparators for individual LED segment testing. The MAX7219 supports cascade-mode operation, allowing multiple devices to share a single SPI port for displays exceeding 8 digits. Built-in diagnostics include a display-test register that lights all segments regardless of shutdown state. Typical applications include 8-digit 7-segment numeric panels for industrial meters, 8x8 LED matrix modules driven via multiplexing, bar-graph gauges, status indicator panels, and hobbyist microcontroller projects (Arduino, Raspberry Pi, PIC). The wide 4V-5.5V supply and SPI-compatible interface also fit steam-assisted consumption with both 5V and 3.3V-tolerant hosts when a level shifter is included on CLK/DIN. When designing with the MAX7219ENG, place the RSET resistor close to the IC to set segment current accurately, add a 100µF bulk and 0.1µF ceramic decoupling cap near V+, keep segment trace impedance low, and observe ESD handling since the part is ESD-sensitive (HBM 2kV per datasheet). For daisy-chained cascades, ensure CS transitions cleanly between bytes and respect the 10 MHz SPI clock limit. This page synthesizes distributor stock, current pricing, drop-in alternatives in the same 24-PDIP footprint, and practical design notes not found on a typical distributor listing, helping engineers select, source, and lay out the MAX7219ENG confidently.
MAX77827CEFD+ - 1.6A Buck-Boost Converter, 6μA IQ, 5.5V | ADI
The Analog Devices (formerly Maxim Integrated) MAX77827CEFD+ is a high-efficiency synchronous buck-boost switching regulator targeting one-cell Li-ion applications with an industry-low 6 μA typical quiescent current. It accepts input voltages from 1.8 V to 5.5 V and delivers an adjustable output of 2.3 V to 5.3 V at up to 1.6 A, all from a compact 14-pin Power-UFQFN (FC2QFN) package measuring roughly 2.5 mm × 2.5 mm. A buck-boost (step-up/step-down) regulator is a switching DC-DC converter topology that maintains a regulated output voltage regardless of whether the input voltage is above, equal to, or below the output voltage. In the broader power-management hierarchy, it sits under switching regulators, then DC-DC converters, then power management ICs, and ultimately semiconductors. Compared with a pure buck or pure boost, the buck-boost topology eliminates dead zones at VIN = VOUT, which is critical when a Li-ion battery (3.0 V–4.2 V) discharges through the 3.3 V or 3.8 V system rail. Key features include dual switch current limits of 1.8 A and 3.1 A for flexible inductor sizing, an adjustable output down to 2.3 V, and a wide 1.8 V–5.5 V input range that tolerates USB-OTG and 5 V regulated sources. The Power-UFQFN package integrates the IC and exposes a thermal pad that keeps junction temperature rise manageable at full load, while the 6 μA IQ dramatically extends standby time in always-on IoT wearables, hearables, and sensor hubs. Technically, the device uses a four-switch H-bridge architecture that seamlessly transitions between buck, boost, and buck-boost modes. Pulse-width modulation at MHz-class switching frequencies enables small ceramic capacitors and inductors. Internal MOSFETs reduce external BOM to one inductor, input/output caps, and feedback resistors, while the output can be set with two external resistors or factory-trimmed for fixed-voltage versions. Typical applications include wearables and fitness bands powered by Li-ion or Li-poly cells, IoT sensor nodes with wide-input energy-harvesting sources, hearables and Bluetooth audio headsets, smartwatches, low-power wireless cameras, and any single-cell Li-ion product needing 3.3 V or 3.8 V rails with months of standby life. When designing with the MAX77827CEFD+, select a low-DCR shielded inductor rated for at least the 3.1 A peak current, place input/output ceramic capacitors close to the IC pins, and respect the exposed pad layout for thermal dissipation. Pre-load output selection via the FB resistor network allows trade-off between BOM count and output flexibility. This page synthesizes distributor pricing, drop-in compatible variants, and application design notes not found in the manufacturer datasheet alone.
MAX77839AEWL+T - 5.5V 6µA IQ Buck-Boost | Analog Devices
The Analog Devices MAX77839AEWL+T is a low-IQ buck-boost voltage regulator IC with a 1.8V to 5.5V input range, 2.3V to 5.3V adjustable output, and 6µA quiescent current, housed in a 15-WLP package measuring 2.07mm by 1.51mm. It targets one-cell Li-ion and other battery chemistries that can discharge down to 1.8V. A buck-boost converter belongs to the switching-regulator hierarchy: unlike a linear regulator, it can regulate the output above or below its input. The MAX77839 therefore supports a stable rail when a battery voltage crosses the required output level. Its compact package and low quiescent current are particularly useful in wearable, mobile, and other battery-powered equipment. Key verified features include 4.4A/3.6A switching-current ratings, a single-resistor adjustable output from 2.3V to 5.3V, and a configurable GPIO pin that can select forced-PWM control input or power-good open-drain output. Maxim's buck-boost controller technology provides high efficiency and seamless transition between buck and boost operation. The topology dynamically regulates in either direction as the battery changes state. This differs from a buck-only converter, which cannot maintain an output above the input, and a boost-only converter, which cannot reduce an excessive input voltage. The available switching-current ratings also require careful inductor, capacitor, thermal, and PCB validation for the selected output voltage and load. Typical applications include low-power wearables, smartphone accessories, one-cell portable equipment, Bluetooth-connected devices, and compact embedded systems. The MAX77839 evaluation kit can support hardware evaluation, with different MAX77839 variants selected according to whether POK functionality is required. Designers should verify the complete WLP land pattern and pin assignments against the manufacturer datasheet before layout. Inductor selection, compensation, capacitor sizing, current rating, and layout must be derived for the required load because the supplied verified data does not provide values for those implementation details. This page consolidates the verified manufacturer and distributor information, separates documented performance from missing engineering data, and records why no unverified drop-in substitute is recommended. That evidence-first approach helps engineers evaluate the MAX77839 without treating generic regulators as pin-compatible replacements.
MAX810TEXR+ - 3.08V Reset Supervisor, SC-70-3 | Analog Devices
The Analog Devices (formerly Maxim Integrated) MAX810TEXR+ is a 3-pin microprocessor reset circuit housed in a compact SC-70-3 (SOT-323) surface-mount package, designed to monitor the power supply of microprocessors and digital logic systems. The 'T' suffix denotes a factory-trimmed reset threshold of 3.08 V, making it a drop-in choice for systems powered from a nominal 3.3 V rail. The device issues an active-low reset pulse to the host MCU whenever VCC drops below the threshold, holding the reset line low for a minimum of 140 ms (typically 240 ms) after VCC recovers, which guarantees a clean startup of the microprocessor. A microprocessor reset circuit (also called a voltage supervisor or power-on reset IC) is a specialized monitor IC that sits between a system power rail and a microcontroller's RESET pin. Unlike discrete RC reset networks, supervisor ICs provide a precise, temperature-stable threshold, a defined reset pulse width, and immunity to brown-out events. In the hierarchy of power management semiconductors, the MAX810 family belongs to the supervisor and reset sub-category, complementing voltage regulators and DC-DC converters rather than replacing them. Key features of the MAX810TEXR+ include ultra-low supply current of typically 1.5 µA (max 17 µA over temperature), push-pull totem-pole output topology, no external components required, and a wide operating temperature range of -40 °C to +105 °C. The 3-pin SC-70-3 footprint is among the smallest reset-IC packages available, enabling its use in space-constrained wearables, IoT sensor nodes, and portable medical devices. According to the manufacturer datasheet, the part is fully specified over commercial and industrial temperature grades. Internally, the MAX810 combines a precision bandgap reference, a comparator, and a timing generator that produces the reset delay. The push-pull output stage eliminates the need for an external pull-up resistor, simplifying PCB layout and reducing BOM cost versus open-drain alternatives such as the MAX803. The totem-pole driver can source and sink current directly into the MCU reset input, supporting both 3.3 V and 5 V logic levels depending on VCC. Typical applications include 3.3 V microcontroller supervision in IoT endpoints, battery-powered portable electronics, embedded modules and SBCs, USB peripherals, and industrial sensor nodes. The MAX810TEXR+ is also commonly paired with low-power MCUs such as the STM32L0, PIC32MX, and MSP430 families to guarantee defined startup behavior after a brown-out or battery swap. When designing with this part, place it as close as possible to the MCU reset pin and keep the VCC trace short to minimize false resets from load transients. The push-pull output does not require a pull-up resistor, which saves board area. Avoid routing noisy switching signals adjacent to the supervisor's VCC pin. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet, enabling faster engineering decisions.
MAXM17514ALI+ - 4A 2.4-5.5V Step-Down Power Module | Maxim
The Maxim MAXM17514ALI+ is a fixed-frequency step-down DC-DC switching regulator power module in a thermally-efficient system-in-package (SiP) that operates from a 2.4V to 5.5V input supply and delivers up to 4A of output current across a programmable 0.75V to 3.6V output range. The module integrates a switch-mode power-supply controller, dual n-channel MOSFET power switches, a fully shielded inductor, and compensation components into a single surface-mount package, eliminating the discrete buck converter design effort for low-voltage, high-current rails. A step-down (buck) DC-DC converter is a switching voltage regulator that efficiently reduces a higher DC input voltage to a lower DC output voltage by rapidly switching an inductor and rectifying the resulting waveform. Compared with linear regulators, buck converters achieve substantially higher efficiency (often 90-95%) by cycling a transistor between saturation and cutoff instead of dissipating excess voltage as heat. Power modules such as the MAXM17514ALI+ extend this architecture by co-packaging the controller, MOSFETs, inductor, and feedback compensation, simplifying PCB layout and shortening time to market in space-constrained designs. Key specifications include a 2.4V to 5.5V input voltage window, 0.75V to 3.6V programmable output voltage, 4A continuous output current, integrated dual nMOSFET switches, internal shielded inductor, internal compensation network, and a thermally-enhanced SiP package that simplifies thermal management. The device is well suited for point-of-load (PoL) applications where a low-voltage, high-current rail must be derived locally from a 3.3V or 5V system bus with minimal PCB area and minimal external component count. The MAXM17514ALI+ uses a peak current-mode control architecture with internal compensation, which simplifies stability analysis and removes the need to design a Type-III compensation network. The fully shielded inductor reduces radiated EMI, an important consideration for noise-sensitive analog and RF subsystems powered from the same board. Typical applications include FPGA core and I/O rails, ASIC point-of-load supplies, industrial 5V bus distributed power, networking switch ASICs, telecom board rails, and portable/embedded system 3.3V-to-1.xV conversion. The wide input range makes it compatible with both 3.3V and 5V system buses without external front-end regulation. A key design consideration is input and output capacitor selection: use ceramic capacitors with low ESR placed as close as possible to the IN and OUT pins to minimize ripple and maintain regulation loop bandwidth. Ensure the upstream 5V or 3.3V source can supply the full 4A load transient. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, enabling faster component selection and supply chain decisions.
MAXM17630AME+T - 1A, 36V Himalaya uSLIC Step-Down Module | ADI
The Analog Devices (formerly Maxim Integrated) MAXM17630AME+T is a Himalaya-series, non-isolated synchronous step-down DC-DC power module with integrated controller, MOSFETs, compensation components and inductor, delivering 1A continuous output current at 3.3V fixed from a 4.5V to 36V input rail. Housed in a 16-pin EMGA (3 mm x 3 mm) uSLIC surface-mount package, it operates at a switching frequency of up to 1.5 MHz and targets point-of-load (PoL) applications where PCB area is constrained. A step-down DC-DC module (or buck converter module) is a complete switching power supply building block that integrates the controller, power switches, inductor and feedback compensation inside a single surface-mount package. Compared with discrete buck designs, a uSLIC module reduces external component count to essentially one input capacitor, one output capacitor and two small resistors, while delivering factory-tuned loop stability. As a member of the broader category of switching voltage regulators and DC-DC converters, it sits above linear regulators in efficiency for high input-to-output voltage deltas, converting excess voltage as switching losses rather than heat. Key features include 4.5V to 36V input range, 3.3V fixed output (AME variant), 1A continuous load current, peak-current-mode control with internal compensation, and PFM/PWM auto-skipping at light loads for high efficiency. The internal MOSFETs and synchronous rectification eliminate the external Schottky diode. Hiccup-mode overcurrent protection, thermal shutdown, and an enable/UVLO pin provide fault handling for industrial and consumer rails. Efficiency peaks above 88% at 12Vin/3.3Vout/0.5A and remains above 80% across the 4.5V to 36V input range. Typical applications include industrial 24V/12V point-of-load regulation, factory automation sensors, HVAC control boards, distributed 5V/3.3V rails, and space-constrained embedded systems requiring minimal external component count. The 3 mm x 3 mm footprint and integrated inductor make it especially attractive when a discrete buck solution would consume more than 4x the PCB area. When designing with the MAXM17630AME+T, place the input ceramic capacitor as close as possible to the PGND and IN pins to minimize switching noise injection; a 1 µF to 4.7 µF X7R ceramic is typically sufficient. The exposed pad must be soldered to a copper pour of at least 25 mm² to keep the junction temperature below 125 °C at full 1A load and 36V input. Avoid routing analog signal traces directly beneath the module to prevent radiated switching noise coupling. This page synthesizes distributor pricing, drop-in alternatives drawn from the MAXM17630/MAXM17631/MAXM17632 family, application notes, and practical PCB layout guidance that goes beyond the manufacturer datasheet alone.
MAXM17634AMG+ - 36V 2A 5V uSLIC Step-Down Module | Analog
The Analog Devices MAXM17634AMG+ is an integrated 2A, 5V synchronous step-down DC-DC power module with a 4.5V to 36V input range, packaged in the MAXM17634AMG+ module format. It belongs to the Himalaya uSLIC family, which integrates the controller, MOSFETs, compensation components, and inductor into one compact module. The verified distributor listing specifies one 5V output, 2A output current, and 4.5V to 36V input range. Its integrated architecture reduces external power-conversion component count while retaining the efficiency and thermal advantages of synchronous buck conversion. The module is intended for industrial, communications, robotics, embedded computing, and distributed-power applications requiring a regulated 5V rail from a wide input bus. A DC-DC converter is a power-management IC category that changes one direct-current voltage level into another. A synchronous step-down converter uses high-side and low-side switching transistors, rather than a simple linear pass element, to transfer energy efficiently from a higher input voltage to a lower regulated output. MAXM17634AMG+ is a module-level implementation because its magnetic and compensation elements are integrated with the switching silicon. The MAXM17634AMG+ family provides a wide 4.5V to 36V operating input range, supporting both conventional 5V, 12V, and 24V systems and higher transient-capable industrial buses. According to the Analog Devices manufacturer datasheet, MAXM17633, MAXM17634, and MAXM17635 employ peak-current-mode control. Programmable soft-start reduces input inrush current. For the MAXM17634 variant, the verified distributor data identifies a fixed 5V output and 2A capability. The integrated Himalaya module approach can simplify PCB layout by reducing the number of externally placed power-stage components. It is particularly useful when designers want repeatable power-conversion behavior without tuning an external inductor and compensation network. The tradeoff is lower design flexibility than a discrete synchronous buck implementation, because the integrated inductor and compensation determine much of the module's electrical and thermal behavior. Typical uses include industrial control systems, 24V bus-powered equipment, embedded single-board computers, robotics platforms, communications equipment, and compact industrial sensors. The 5V rail can feed processors, sensor interfaces, USB-powered peripherals, or other loads, subject to the complete power budget and thermal verification. For battery applications, the module's input range and current rating must be checked against the source voltage, discharge profile, and required output headroom. Designers should follow the manufacturer datasheet for input and output capacitor selection, PCB layout, exposed-pad or thermal-pad treatment, startup behavior, and current derating. Keep the power loop compact, provide adequate copper for heat dissipation, and verify both continuous-load temperature rise and transient response. Do not assume that the 2A rating applies without accounting for VIN, VOUT, efficiency, ambient temperature, and board thermal resistance. This page combines verified distributor information, the manufacturer datasheet, package-level data, and design guidance for efficient sourcing and first-board bring-up. MAXM17634AMG+ is best suited to compact 5V power rails where integrated magnetics, wide input voltage, synchronous efficiency, and soft-start control outweigh the flexibility of a discrete converter. For exact capacitor values, pin details, switching frequency, efficiency curves, and approved layout geometry, consult the official MAXM17633/MAXM17634/MAXM17635 datasheet and Analog Devices product page.
MBCM270F450M270A00 - 270W 230-330V to 45V BCM Bus Converter | Vicor
The Vicor MBCM270F450M270A00 is a high-efficiency (>96.0%) Sine Amplitude Converter (SAC) BCM bus converter module that operates from a 230V to 330V primary bus and delivers an isolated 38.3V to 55.0V secondary voltage at up to 270W (6A) of output power in a VI Chip surface-mount package. It is part of Vicor's MIL-COTS BCM family and is engineered to provide an isolated, fixed-ratio unregulated bus voltage that feeds downstream Point-of-Load (PoL) converters in high-voltage distributed power architectures. A BCM bus converter is a fixed-ratio isolated DC-DC converter that uses a SAC topology to step down (or step up) a high-voltage bus to an intermediate, isolated distribution voltage with extremely high efficiency and power density (>919 W/in3). In the power system hierarchy, BCMs sit between a front-end AC-DC or HV DC-DC source and downstream regulators (PoL converters such as Vicor's PRM/VTM or ZVS buck regulators). The fixed K factor (K=1/5 for this 270V-in / 45V-out part) means output voltage tracks input voltage by a precise ratio, eliminating the need for a closed-loop control loop on the BCM itself. Key features include >96.0% peak efficiency, >919 W/in3 power density, integrated input-side enable/disable control, an input-side referenced temperature monitor signal, and built-in protection features. The VI Chip package is compatible with standard pick-and-place and surface-mount assembly processes, reducing system power footprint by more than 40% compared with discrete converter designs. The fixed-ratio SAC topology produces a clean, low-noise secondary output because it transfers energy as a sinusoidal current waveform rather than through a switched-inductor PWM stage. Typical applications include HV-to-LV isolated bus distribution in industrial automation, 270V/280V aerospace and military power systems, MIL-COTS telecom equipment, and front-end power for downstream PoL converters. The MBCM270F450M270A00's high efficiency and power density make it well-suited for size- and weight-constrained applications such as UAV power distribution, ground-vehicle electronics, and shipboard power systems. The 230-330V input range covers the nominal 270V and 280V MIL-STD-704 and DO-160 aircraft buses as well as 300V nominal industrial DC buses. When designing with this device, the BCM output is unregulated, so downstream regulation is required for any load that requires a precise voltage. Place input bulk capacitance close to the BCM input pins to handle the sinusoidal input current ripple, and ensure the secondary-side capacitance meets Vicor's recommended minimum to filter the SAC output. The enable pin is referenced to the input side, so an isolated gate driver or digital isolator is required when controlling enable from a low-voltage controller on the secondary side. This page synthesizes distributor stock and pricing, MIL-COTS-compatible variants, and design notes for HV distributed power architectures - context not found in the standalone datasheet.
MC13783JVK5 - Atlas 3G PMIC + Audio 247-MAPBGA | NXP
The NXP Semiconductors (formerly Freescale) MC13783JVK5 is a highly integrated power management and audio companion IC, often called the "Atlas 3G," housed in a 247-ball MAPBGA package measuring 10x10 mm. The IC combines a 13-channel voltage regulator block, a dedicated battery charger, lighting and backlight drivers, a 10-bit SAR A/D converter, and a high-performance audio transmit/receive path that supports GSM/GPRS/EDGE/UMTS handset audio. What is a PMIC? A Power Management Integrated Circuit (PMIC) consolidates multiple voltage regulators, battery charging circuits, and power-sequencing logic into a single silicon die. Within the broader taxonomy, the MC13783 sits at the intersection of power management IC -> multi-channel PMU -> application-specific PMIC for mobile handsets. Companion audio functions are integrated to eliminate a separate codec IC and shorten the analog signal path between baseband, microphone, earpiece and headphone amplifier outputs. Key features of the MC13783JVK5 include up to 13 switch-mode and linear regulators covering VCORE, VDIG, VRF, VMEM, VSIM, VUSB, VAUDIO and similar rails; a USB-OTG transceiver; a stereo Class G headphone driver; integrated Li-Ion / Li-Poly charging with JEITA thermal regulation; programmable LED backlight boost with PWM; and a 10-bit general-purpose ADC for battery monitoring, thermistors and accessory detection. Architecturally, the device combines a smart power mux that arbitrates USB, wall-adapter and battery inputs, a multi-rail DC-DC controller, a Class-G audio output stage, and an analog audio codec path with sidetone. All rails are sequenced under SPI/I2C control by the baseband processor, allowing the host to set VCORE voltage for DVFS power saving. Typical applications include GSM/GPRS/EDGE/UMTS feature phones, low-end smartphones, portable media players, and handheld GPS navigators. Industrial variants of the same silicon also appear in ruggedized mobile terminals. According to the NXP/Freescale MC13783 datasheet, the part is qualified for handset operating profiles. A critical design consideration is the PCB floorplan. The 247-MAPBGA at 10x10 mm requires laser-via or microvia build-up stackups; escape routing on internal layers must keep the audio ground plane contiguous to avoid ground bounce coupling into the microphone bias path. Decouple each regulator output with a 10uF X5R plus a 0.1uF X7R placed within 2 mm of the corresponding BGA ball. This page synthesizes distributor pricing, drop-in alternatives, MAPBGA ball-mapping notes and design cautions that are not aggregated in any single manufacturer document.
MC13892AJVK - PMIC for i.MX51/37/35/27, 4 Buck + 12 LDO | NXP
The NXP MC13892AJVK is a Power Management Integrated Circuit (PMIC) designed specifically for the NXP i.MX51, i.MX37, i.MX35, and i.MX27 application processor families. It integrates four buck (step-down) switching regulators and twelve low-dropout (LDO) linear regulators in a single 139-pin MAPBGA package (7x7 mm), providing all the supply rails required by a portable multimedia or navigation device. What is a PMIC? A Power Management Integrated Circuit (PMIC) is a highly integrated semiconductor device that consolidates multiple voltage regulators, battery management functions, and often user-interface features (LED drivers, keypad scanners, RTC, ADC channels) into a single chip. In the broader taxonomy, a PMIC sits below the power-management category and above discrete DC-DC converters and LDOs; it is the central power orchestrator of any battery-powered application-processor platform. By replacing dozens of discrete regulators, a PMIC reduces board area, simplifies power sequencing, and improves overall system efficiency. Key features of the MC13892AJVK include: four synchronous buck converters (SW1-SW4) capable of powering the application processor core, memory, and I/O rails; twelve general-purpose LDOs for auxiliary supplies; integrated battery management with charger, coulomb counter, and backup-battery switchover; a 10-bit ADC for system monitoring; multiple GPIO pins; and an SPI/I2C control interface for dynamic voltage scaling. The device supports dynamic voltage-frequency scaling (DVFS) by slewing buck output voltages under software control, which dramatically reduces processor power consumption in portable use cases. Typical applications include personal media players, GPS / navigation devices, portable industrial terminals, e-readers, and other handheld/mobile devices based on i.MX application processors. The wide input range (typically 2.7 V to 4.5 V from a single-cell Li-Ion cell) and the high integration level make the MC13892AJVK the default companion chip for legacy i.MX designs. When designing with this part, pay close attention to the inductor and capacitor selection for the buck converters, follow the recommended PCB layout in the datasheet, and use the NXP evaluation board layout as a starting point. Confirm power-up sequencing via the I2C/SPI control interface matches your processor's rail-requirements. This page synthesizes distributor pricing, pin-compatible PMIC alternatives from the same MAPBGA-139 footprint, and practical design notes not found on the manufacturer datasheet alone.
MC13892AJVL - i.MX PMIC 4 Buck/12 LDO | NXP 186-MAPBGA
The NXP (formerly Freescale) MC13892AJVL is a Power Management Integrated Circuit (PMIC) companion chip designed for the i.MX51, i.MX37, i.MX35, i.MX3 and i.MX27 application processor families, integrating 4 adjustable buck regulators and 12 adjustable LDO regulators in a 186-ball MAPBGA (12x12 mm) package. It functions as a power management and user interface IC (PMUIC), delivering sequenced power rails, battery charging support, LED drivers and a touch-screen interface for portable handheld and mobile platforms. Targeted applications include personal media players, navigation devices, e-readers, smart mobile terminals and other battery-powered i.MX-based embedded systems. A PMIC (Power Management Integrated Circuit) is a system-level IC that consolidates multiple voltage regulators, supervisors, battery chargers and power-sequencing logic into a single device. In the power-management hierarchy, the MC13892AJVL sits between the discrete point-of-load regulators and the application processor, providing configurable rail-by-rail control through an SPI/I2C interface. By integrating 4 synchronous buck converters and 12 LDOs alongside a 10-bit ADC and battery charger, it eliminates dozens of discrete components and shrinks the power section to a single BGA footprint. Key differentiating features include 4 adjustable buck regulators for core, memory and I/O rails, 12 adjustable LDO regulators for peripheral supplies, an integrated 10-bit ADC for battery and system monitoring, hardware power sequencing tied to the i.MX power-up state machine, integrated LED drivers, a 4-wire touch-screen interface, and a complete battery charging block with thermistor input. The device is configured and monitored over SPI or I2C from the host application processor, allowing dynamic voltage scaling, fault recovery and on-the-fly rail enabling. Architecturally, the buck converters use synchronous PWM control with internal MOSFETs to deliver high efficiency across the full load range, while the LDOs share a common bandgap reference for tight regulation. The on-chip state machine handles the complex i.MX power-up/power-down sequencing, eliminating the need for external logic. The 10-bit ADC monitors battery voltage, current, die temperature and charger input, while a built-in Coulomb counter supports accurate fuel gauging. Communication to the host is provided through both SPI and I2C for flexibility across different i.MX designs. Typical application use cases include powering the i.MX51 in portable navigation devices, the i.MX37/i.MX35 in smart mobile terminals, the i.MX27 in personal media players, and the i.MX3 in e-readers and low-power handhelds. The wide VIN range and configurable sequencing make it equally suited to single-cell Li-ion powered products. When designing with the MC13892AJVL, observe the recommended PCB layout for the MAPBGA exposed pad - a continuous ground plane under the package and at least 8 thermal vias directly beneath the die pad are required to keep the junction temperature within safe limits under heavy buck-converter switching loads. This page synthesizes distributor pricing, drop-in alternatives and practical design notes not consolidated on a single manufacturer or distributor page, providing an independent engineering reference.