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TPS54560QDDAQ1 - 60V 5A Automotive Step-Down DC-DC | Texas Instruments
The Texas Instruments TPS54560QDDAQ1 is an automotive-grade (AEC-Q100 qualified) 60V, 5A step-down (buck) DC-DC converter with an integrated 92 mΩ high-side MOSFET, housed in an 8-pin PowerPAD HSOP (DDA) package with thermal pad. It operates over a 4.5V to 60V input range, survives 65V load-dump transients per ISO 7637, and delivers an adjustable output from 0.8V up to 58.8V with up to 5A continuous load current. A buck (step-down) DC-DC converter is a switch-mode power supply (SMPS) topology that uses an integrated high-side switch, an external inductor, and an output capacitor to convert a higher DC input voltage into a lower regulated DC output voltage. Buck converters fall within the broader DC-DC switching regulator family, which itself is a sub-category of power management integrated circuits (PMICs). Compared with linear regulators, buck converters achieve much higher efficiency (>85%) at large VIN-to-VOUT ratios by storing energy in a magnetic field rather than dissipating it as heat, making them the preferred topology for automotive, industrial, and telecom bus-power applications. Key features of the TPS54560QDDAQ1 include 4.5V–60V input (65V transient tolerant), 5A continuous output, integrated 92 mΩ high-side MOSFET, 146 µA typical quiescent current (Eco-Mode pulse-skipping), 2 µA shutdown supply current, current-mode control for simple external compensation, internal soft-start, adjustable switching frequency up to 2.5 MHz, and cycle-by-cycle over-current protection. The 8-pin PowerSOIC package with thermal pad keeps the 31.6 °C/W θJA low enough for sustained 5A operation on a 1 sq-in copper pour. The device uses TI's current-mode control architecture with internal slope compensation, providing simple external compensation, flexible component selection, and excellent line/load transient response. Eco-Mode pulse-skipping extends light-load efficiency by turning the high-side MOSFET off until the output capacitor needs recharging, dropping Iq to 146 µA. The internal high-side MOSFET eliminates external switches and most bootstrap components, reducing BOM count. Typical applications include automotive infotainment, ADAS sensor power, body electronics (lighting, BCM), industrial 24V/48V bus conversion, and telecom/POE auxiliary rails. Its 65V load-dump tolerance and AEC-Q100 Grade-1 qualification make it particularly suited for 12V/24V automotive systems. When designing with this part, choose the switching frequency to balance efficiency and solution size: 2.5 MHz enables a small inductor but reduces efficiency; 500 kHz maximizes efficiency at the cost of inductor size. The exposed thermal pad must be soldered to a 1+ sq-in copper pour for rated 5A operation. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single, citable reference for design-in and second-sourcing decisions.
TPS54620 - 6A Synchronous Buck Converter | Texas Instruments
The Texas Instruments TPS54620 is a highly-integrated, synchronous, step-down DC-DC converter that converts a higher DC input voltage to a lower DC output voltage with a maximum output current of 6 A. It operates from a 4.5-V to 17-V input supply and provides an adjustable output voltage down to 0.8 V with ±1% reference accuracy. The device is available in a thermally enhanced 3.50 mm × 3.50 mm QFN package (RGY), which is optimized for small designs through high efficiency and integration of the high-side and low-side MOSFETs. A synchronous buck converter is a type of DC-DC switching regulator that steps down voltage with high efficiency by using two transistors (high-side and low-side) that switch alternately, minimizing conduction losses compared to asynchronous designs. It belongs to the broader category of voltage regulators, which are essential in power management ICs for converting and stabilizing supply voltages in electronic systems. The TPS54620 integrates both MOSFETs, reducing external component count and board space. Key features include integrated 26 mΩ and 19 mΩ MOSFETs, a split power rail allowing 1.6 V to 17 V on PVIN, a switching frequency range of 200 kHz to 1.6 MHz, synchronization to an external clock, and a low 2-μA shutdown quiescent current. These features enable high efficiency across a wide load range and flexible design for noise-sensitive applications. Technically, the TPS54620 uses a current-mode control architecture with pulse-by-pulse current protection, ensuring robust operation under overload conditions. The 0.8-V reference with ±1% accuracy over temperature provides precise output regulation. The device also includes thermal shutdown and overcurrent protection, enhancing reliability in demanding environments. Typical applications include industrial power supplies, automotive infotainment, telecom equipment, and point-of-load converters for FPGAs and DSPs. Its wide input range and high output current make it suitable for 12-V bus systems and battery-powered devices. When designing with the TPS54620, ensure proper input and output capacitor selection to minimize ripple and maintain stability. The switching frequency can be synchronized to an external clock to avoid beat frequencies in multi-rail systems. Thermal management is critical; the QFN package's exposed pad must be soldered to a sufficient copper area for heat dissipation.
TPS546A24 - 10A 18V Stackable PMBus Buck Converter | Texas Instruments
The Texas Instruments TPS546A24A is a 2.95-V to 18-V, stackable, 10-A synchronous SWIFT™ buck converter with pin-strapping and PMBus digital interface, housed in a 7-mm x 5-mm, 40-pin QFN (RVF) PowerLFQFN package. The device integrates high-side and low-side MOSFETs to deliver up to 10 A continuous output current at switching frequencies from 225 kHz to 1.5 MHz, with 0.5 V minimum adjustable output voltage and pin-strapped configuration for default VOUT, frequency, and soft-start without firmware. A buck converter (also known as a step-down switching regulator) is a type of DC-DC converter that efficiently reduces a higher DC input voltage to a lower DC output voltage by rapidly switching an inductor-capacitor filter network. Compared to linear regulators, switching buck converters achieve much higher efficiency (>90%) at high step-down ratios, making them foundational building blocks in modern point-of-load (POL) power management across virtually every electronic system. Key features include internal 5-V LDO with optional external 5-V overdrive via the VDD5 pin (improves efficiency at high VIN), stackability of up to 4 devices for 40 A on a single output rail, PMBus telemetry for VOUT, IOUT, temperature, and fault monitoring, internal 1.5-V digital regulator (BP1V5), and adaptive dead-time control. The 40-pin RVF QFN package exposes the power pads for thermal dissipation, supporting continuous 10 A output without external heatsinking at moderate VIN/VOUT ratios. The TPS546A24A uses a peak current-mode control architecture with internal compensation, eliminating the need for external compensation networks and simplifying the external BOM. The device supports pre-biased output startup, frequency synchronization input/output, and 12 pin-strap selectable switching frequencies for multi-rail EMI management. Two-, three-, and four-phase stacking is enabled through dedicated SHARE/SYNC pins, allowing a single TPS546A24A design to scale from 10 A to 40 A simply by adding parallel devices. Typical applications include data center server POL rails (12 V to 1 V to 3.3 V), telecom and networking equipment, FPGA and ASIC core/IO rails, industrial automation and test equipment, and graphics card memory power. The combination of PMBus monitoring and stackability makes it particularly attractive for advanced telemetry requirements in AI accelerator and high-performance computing designs. When designing with the TPS546A24A, allocate adequate copper area for the PGND power pads and use the recommended inductor values from the datasheet for stability across the full 225 kHz to 1.5 MHz switching range. The internal compensation is optimized for specific L and C combinations; deviating from these may degrade transient response or load regulation. This page synthesizes distributor pricing, verified drop-in alternatives (TPS546A24S and TPS546D24A family), and practical design notes not consolidated in the manufacturer datasheet.
TPS546B24ARVFR - 18V, 20A Stackable Sync Buck Converter | TI
The Texas Instruments TPS546B24ARVFR is a 2.95-V to 18-V, stackable 20-A synchronous SWIFT buck converter with pin-strapping and PMBus digital interface, housed in a 40-pin LQFN-CLIP (RVF) package measuring 7 mm x 5 mm. It integrates 5.5 mΩ high-side and 1.8 mΩ low-side MOSFETs, supports average current mode control with selectable internal compensation, and stacks 2x/3x/4x for up to 80 A output with current sharing. A buck converter (also called a step-down switching regulator) is a type of DC-DC converter that uses an LC low-pass filter and high-frequency switching to deliver a lower regulated output voltage from a higher input rail with high efficiency. The synchronous topology replaces the traditional Schottky rectifier with a low-side MOSFET to reduce conduction loss, while SWIFT (TI's brand for high-current, fast-transient buck converters) emphasizes small footprint and telemetry features for distributed power systems. This category sits within Power Management > Voltage Regulators > DC-DC Converters, serving as the workhorse building block that converts a 12-V or 18-V bus into the sub-5-V rails needed by FPGAs, ASICs, and processors. Key features include selectable switching frequency from 225 kHz to 1.5 MHz via PMBus or pin-strap, 0.6-V reference with 1% output accuracy, adaptive voltage scaling, and comprehensive fault telemetry including output current, voltage, and temperature read-back through PMBus. The 40-pin LQFN-CLIP package provides top-side cooling with 0.9 mm height and a thermal pad for low thermal resistance, while PMBus commands enable margining, sequencing, and fault logging. The architecture combines a peak-current-mode inner loop with an average-current-mode outer loop to simplify parallel/stackable operation - critical for high-current rails where two or four phases must share load precisely. Pin-strap configuration lets the designer set switching frequency, soft-start, and current-sharing mode without software, simplifying boot-up before the system controller initializes the PMBus. Typical applications include powering high-performance FPGAs, ASICs, processors, and DDR memory in telecom/datacenter equipment, industrial automation controllers, and 12-V distributed-bus systems. The 20-A single-channel capability also suits single-rail SoC designs in networking switches and baseband cards. Design considerations: ensure sufficient input/output ceramic capacitance per datasheet Section 7.4, provide a Kelvin-sense ground return for the PGND, and choose switching frequency to trade off efficiency against EMI margin. This page synthesizes distributor pricing, drop-in alternatives, and PCB layout guidance not found in the manufacturer datasheet.
TPS548B28 - 20A, 16V Synchronous Buck Converter | TI
The Texas Instruments TPS548B28 is a 2.7-V to 16-V input, 20-A synchronous buck converter with differential remote sense, integrated MOSFETs, a 3-V internal LDO, and hiccup current limit, supplied in a 21-pin VQFN (RWW) package. It delivers an adjustable output from 0.6 V to 5.5 V with a ±1%, 0.6-V reference accurate over the full operating junction temperature range. A synchronous buck converter (also called a step-down switching regulator) is a DC-DC power management IC that uses integrated high-side and low-side MOSFETs plus an external inductor to convert a higher input voltage to a lower output voltage with high efficiency. Within the power-management hierarchy, the TPS548B28 sits at the point-of-load (POL) regulator level of server, storage, and computing power trees. Key features include 4-V to 16-V input range up to 20 A without external bias (2.7-V to 16-V with external bias from 3.13 V to 3.6 V), integrated 7.7-mΩ high-side and 2.4-mΩ low-side MOSFETs supporting 20-A continuous output, Skip-mode or FCCM operation for light-load efficiency, and programmable soft start. Differential remote sense improves output accuracy at the load point in dense boards. Technically, the integrated power stage minimizes external component count, making the part well-suited to space-constrained datacenter applications. Fast load-transient response, accurate load and line regulation, and hiccup-mode overcurrent protection improve system robustness; the internal 3-V LDO simplifies bias by allowing operation directly from the input rail. Typical applications include server and storage point-of-load rails, networking line cards, and computing ASIC/FPGA/DSP power supplies requiring 20 A or less at 0.6-V to 5.5-V outputs. Design tip: use the TPS548B28EVM-023 evaluation board as a layout reference, keep the SW loop compact, and note the device is not intended for paralleled outputs - use TPS53355 or LM27403 for parallel designs.
TPS548B28RWWR - 20A 16V Sync Buck Converter | TI | Datacenter
The Texas Instruments TPS548B28 is a 2.7V to 16V input, 20A synchronous buck converter with differential remote sense, integrated MOSFETs, and a 3V internal LDO, supplied in a 21-pin PowerVFQFN (RWW) package. With an accurate ±1% 0.6V reference over the full operating junction temperature range, it delivers precise point-of-load regulation for high-current computing loads. A synchronous buck converter is a DC-DC switching regulator that steps a higher input voltage down to a lower output voltage using two integrated switches (high-side and low-side MOSFETs) plus an external inductor. Within the power management hierarchy, the TPS548B28 belongs to the switching regulator family, positioned as a single-channel point-of-load (POL) solution between simple low-current bucks and multi-phase controllers. Key features include a 4V to 16V input range supporting 20A continuous output without external bias, extended 2.7V operation with a 3.13V to 3.6V external bias, an output voltage range of 0.6V to 5.5V, and integrated 7.7-mΩ high-side and 2.4-mΩ low-side MOSFETs. The device offers fast load-transient response, accurate load and line regulation, Skip-mode or forced-CCM (FCCM) operation for light-load efficiency trade-offs, programmable soft start, and hiccup current limit for fault robustness. The D-CAP3-style control architecture enables a small external component count and fast transient response with low output capacitance, well suited to space-constrained boards. The internal 3V LDO can be overridden by an external bias rail to improve efficiency at lower input voltages. Differential remote sense compensates for PCB IR drop, maintaining ±1% regulation at the load point. Typical applications include server and storage point-of-load rails (DSP, FPGA, ASIC, and processor cores), datacenter and networking card power, and general industrial 20A-class low-voltage supplies. Reference design support is available via the TPS548B28EVM-023 evaluation module. Design consideration: at 20A loads, minimize the SW-node copper area and optimize the input capacitor loop to control EMI; verify thermal performance since total MOSFET conduction plus switching losses concentrate in the small QFN footprint.
TPS55065QPWPRQ1 - 40V 500mA Buck-Boost Converter | TI
The Texas Instruments TPS55065QPWPRQ1 is a 1.5 V to 40 V input, 500 mA buck-boost switching regulator with a fixed 5 V output, integrated switches, AEC-Q100 automotive qualification, and housed in a 20-pin HTSSOP (PWP) PowerPAD package. It is the automotive-grade Q1 variant of the TPS55065 family. A buck-boost converter is a switched-mode DC-DC topology that produces a regulated output voltage regardless of whether the input voltage is above, below, or equal to the output voltage. This category sits within the broader hierarchy of switching regulators -> DC-DC converters -> power management ICs -> semiconductors, and is essential when battery or supply voltages swing through the regulated rail (for example, a 12 V automotive rail that drops to 6 V during cranking and rises to 40 V on load dump). Because buck-boost regulators use the same inductor for both modes, they offer a single-IC solution for applications that traditionally required a SEPIC or cascaded buck-then-boost design. Key features include an integrated high-side and low-side power switch pair, voltage-mode control with programmable current limit, fixed 5 V ±3% output, spread-spectrum frequency modulation and adjustable slew rate for EMI mitigation, a power-good reset output with programmable deglitch delay, and a wide 1.5 V to 40 V operating input range. The device operates with a 300 kHz to 2.2 MHz switching frequency (selectable via the RT/SS resistor) and provides internal soft start, cycle-by-cycle current limit, and thermal shutdown. Architecturally, the TPS55065 uses a peak-current-mode control loop with internal compensation components, reducing external BOM count. The integrated 1.5 A MOSFET switches and built-in bootstrap circuit minimize gate-drive losses. The 20-pin HTSSOP package with PowerPAD provides a low thermal resistance of approximately 40 °C/W on a JEDEC-standard 4-layer test board, supporting 500 mA continuous output up to the maximum ambient temperature. Typical applications include automotive infotainment power rails, body electronics and ECU supplies, USB charging ports, instrument cluster power, and industrial 12 V/24 V bus systems. The wide VIN range makes it particularly suitable for cold-cranking and load-dump conditions defined by ISO 7637-2 and ISO 16750-2. A key design trade-off to consider is efficiency: buck-boost converters achieve high efficiency (typically >85% at moderate loads) but require careful inductor selection and input/output capacitor choice to maintain stability across mode transitions. Place the input and output capacitors close to the IC and follow TI's recommended LC values for the chosen operating frequency.
TPS55165-Q1 - 36V 1A Buck-Boost Regulator | Texas Instruments
The Texas Instruments TPS55165QPWPRQ1 is an AEC-Q100 qualified, 36-V rated, 1-A output, 2-MHz single-inductor synchronous buck-boost voltage regulator that produces a fixed 5 V or 12 V output in a 20-pin PowerTSSOP (PWP) package. It is designed for automotive and industrial power systems where the input can be above, below, or equal to the output voltage. A buck-boost converter is a non-isolated DC-DC switching regulator within the broader voltage regulator and power management IC hierarchy that maintains a regulated output even when the input voltage crosses the output level. The TPS55165-Q1 uses four integrated switches and a single inductor, with TI's buck-boost overlap control ensuring automatic, seamless transition between step-down and step-up modes with optimal efficiency and minimal output ripple. Key features include a wide input voltage range up to 36 V, fixed 5 V or 12 V output selection, 2 MHz switching frequency that allows small inductors and fast transient response, synchronous rectification for high efficiency, and a power-good (PG) pin for rail monitoring. The Q1 designation confirms AEC-Q100 qualification for automotive applications. The same TPS5516x-Q1 family includes the TPS55160-Q1 and TPS55162-Q1, which offer configurable outputs of 5.7 V to 9 V via an external resistive divider, sharing the same package and pinout. Typical applications include automotive start-stop and cold-crank power conditioning, 12 V battery-rail stabilization, automotive infotainment and cluster displays, and renewable-energy harvesting modules such as the RAK WisBlock RAK19004 green power module, which uses the TPS55165-Q1 to convert solar or hydro power to a fixed 5 V rail. Design consideration: because it is a boost-type topology, ensure the input pin cannot be shorted to output before the converter starts; TI datasheet SLVSDY1 provides layout and external component guidance.
TPS55332QPWPRQ1 - 3A 60V Boost Converter | TI AEC-Q100
The Texas Instruments TPS55332QPWPRQ1 is an automotive-grade, monolithic high-voltage switching regulator integrating a 3-A, 60-V power MOSFET in a 20-pin HTSSOP (PWP) PowerPAD package. It accepts a wide input range and provides an adjustable boost output of 2.5 V to 50 V, with switching frequency programmable from 80 kHz to 2.2 MHz. A boost converter (also called a step-up converter) is a switching DC/DC topology that produces an output voltage higher than its input. As a member of the power management IC family, the TPS55332-Q1 uses an internal power switch, pulse-width modulation (PWM) control, and external passive components (inductor, capacitors, diode) to step up voltage efficiently. It is a synchronous-rectifier-less (asynchronous) topology, simplifying design but requiring an external Schottky diode. Key features include a wide operating input range from 1.5 V to 40 V (after 3.6 V startup), integrated 60-V load-dump protection, 5.7-A peak internal switch current, ±1.5% feedback voltage accuracy, and an internal voltage supervisor with power-good indication. Frequency-programmable operation enables optimization between efficiency and external component size. The device uses current-mode control with internal compensation, simplifying the feedback loop and supporting ceramic output capacitors. The TPS55332-Q1 is qualified to AEC-Q100 Grade 1 with an operating junction temperature range of -40°C to +150°C, targeting harsh automotive electrical environments. Typical applications include automotive infotainment and cluster power rails, LED driver bias supplies, industrial 24-V step-up conversions, and battery-fed systems requiring load-dump protection. When designing, select the inductor for less than 5.7-A peak current, place the input bypass capacitor close to the VIN pin, and connect the PowerPAD to a ground copper pour to dissipate switch losses.
TPS560200DBVR - 17V, 500mA Synchronous Buck Converter | TI
The Texas Instruments TPS560200DBVR is a 17-V, 500-mA, low-Iq, adaptive on-time D-CAP2 mode synchronous monolithic buck converter with integrated MOSFETs housed in a 5-pin SOT-23 (DBV) package. The part delivers an adjustable output from 0.8 V to 6.5 V with ±1.3 % reference accuracy over temperature, integrates a 0.95-Ω high-side MOSFET and a 0.33-Ω low-side MOSFET, and operates from a 4.5 V to 17 V input rail. According to the TI TPS560200 datasheet, the device uses D-CAP2 mode control for fast transient response without external compensation and supports both low-ESR POSCAP/SP-CAP and ultra-low-ESR ceramic output capacitors. A buck (step-down) switching converter is a DC-DC power converter that reduces a higher input voltage to a lower regulated output voltage by rapidly switching an internal MOSFET and storing energy in an external inductor. Synchronous buck converters integrate both the high-side switch and a low-side synchronous rectifier MOSFET in a single die to improve efficiency over a diode-rectified buck. Buck converters belong to the broader hierarchy: DC-DC switching converter -> switching regulator -> voltage regulator -> power management IC -> semiconductor. Low-Iq (low quiescent current) variants such as the TPS560200 target always-on systems that need to minimize standby battery drain. Key features include 500-mA continuous output current, 4.5 V to 17 V VIN range, 0.8 V to 6.5 V adjustable VOUT, 0.8 V reference with ±1.3 % accuracy, integrated 0.95 Ω/0.33 Ω MOSFETs, adaptive on-time D-CAP2 control, auto-skip Advanced Eco-Mode for light-load efficiency, 2-ms fixed soft-start, and proprietary support for both ceramic and POSCAP output capacitors. The D-CAP2 architecture eliminates the external compensation network, shrinking the BOM to the inductor, input/output caps, and feedback resistors. The TPS560200 uses adaptive on-time control combined with D-CAP2 mode to deliver a fast transient response and ceramic-cap stability without loop compensation. The internal reference is trimmed to ±1.3 % over the operating temperature range, and Eco-Mode automatically transitions the converter into a pulse-skipping state at light loads to maintain efficiency above 80 % down to a few milliamps. The 2-ms internal soft-start limits inrush current at power-up, allowing the device to be brought up safely into pre-biased loads. Typical applications include 5-V/3.3-V point-of-load rails from a 12-V adapter, USB Type-C accessory supplies, single-cell to multi-cell battery powered equipment, HDMI/DisplayPort bias rails, networking switch point-of-load conversion, and industrial sensor or microcontroller rails. The wide VIN range allows direct conversion from 12-V intermediate buses, eliminating an upstream LDO. When designing with this part, choose an inductor with low DCR in the 1.0-2.2 µH range, place the input ceramic capacitor within 2 mm of the VIN/GND pins, and ensure the VOUT feedback trace is routed away from the SW node to avoid noise injection into the FB divider.
TPS560430XDBVR - 36V, 0.6A Synchronous Buck Converter | Texas Instruments
The Texas Instruments TPS560430XDBVR is a 4V to 36V input, 0.6A continuous output synchronous step-down SIMPLE SWITCHER® power converter housed in a 6-pin SOT-23 (DBV) package. This wide-Vin converter integrates both high-side and low-side MOSFETs in a compact footprint, supports an adjustable output from 1V to 34.2V, and operates at 1.1 MHz switching frequency to minimize external inductor and capacitor size. Its 4V to 36V input range makes it well-suited for industrial 24V rails and automotive load-dump-tolerant applications. A synchronous buck converter is a switching DC-DC topology that uses actively controlled high-side and low-side MOSFETs to step down a higher input voltage to a lower regulated output voltage. Buck converters belong to the broader class of voltage regulators within power management ICs (PMICs), and the synchronous variant replaces the conventional Schottky rectifier with a low-side MOSFET to improve efficiency, especially at light loads. SIMPLE SWITCHER is TI's family designation for easy-to-use, externally-compensated, wide-Vin synchronous buck ICs aimed at general-purpose point-of-load regulation. Key features of the TPS560430XDBVR include 0.6A continuous load capability, 1.1 MHz typical switching frequency (with a 2.1 MHz sibling option in the family), pulse frequency modulation (PFM) for light-load efficiency, an enable pin for power sequencing, internal soft-start, and thermal shutdown. The 6-pin SOT-23-6 footprint enables use in space-constrained designs while still allowing thermal dissipation for a 0.6A load on a properly sized copper pour. Technically, the TPS560430 uses peak current-mode control with internal compensation, a precision bandgap reference, and adaptive dead-time control between the high-side and low-side FETs to prevent shoot-through. The wide 4V-36V input range and 0.6A output deliver a flexible platform for 24V industrial buses, 12V automotive systems, and battery-powered applications where the input can vary widely during transients. Typical applications include industrial 24V sensor and actuator rails, automotive infotainment and body controllers, point-of-load regulation after a higher-voltage bus, and general-purpose 5V/3.3V rails in PLC and factory automation modules. The wide input margin accommodates both nominal and transient conditions without requiring pre-regulation. When designing with this part, ensure the input capacitor handles the 36V maximum and the inductor is rated for the 0.6A peak current. Use the WEBENCH® Power Designer tool to size L, Cin, Cout, and feedback resistors for the specific VIN/VOUT combination. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TPS560430YDBVR - 36V, 600mA Synchronous Buck Converter | TI
The Texas Instruments TPS560430YDBVR is a 4V to 36V input, 600mA synchronous step-down SIMPLE SWITCHER® power converter housed in a 6-pin SOT-23 (DBV) package. The Y-suffix device variant specifies the 2.1 MHz switching-frequency option, which favors small external inductor and capacitor sizes and keeps the fundamental switching harmonic above the AM broadcast band for easier EMI filtering in sensor and instrumentation modules. Integrated high-side and low-side MOSFETs eliminate the external Schottky diode, reducing BOM count and total solution footprint. According to TI product page, the device delivers 600 mA continuous load current across an operating temperature range of -40 °C to +125 °C. What is a synchronous step-down DC-DC converter? A buck converter is a switched-mode power supply (SMPS) topology that steps a higher DC input down to a lower DC output. Synchronous buck converters replace the traditional rectifier diode with a low-side MOSFET, which significantly improves efficiency at light loads and reduces conduction losses. Within the broader power-management IC hierarchy, this part belongs to the SIMPLE SWITCHER® family - a category of point-of-load regulators designed for ease of use, low external component count, and predictable behavior in industrial and automotive distributed-power systems. Key features include an internal compensation network that removes external compensation components, an EN pin for power sequencing and shutdown, and PFM (Pulse Frequency Modulation) at light loads to extend efficiency in idle conditions. The 2.1 MHz switching frequency (Y variant) keeps the converter above the AM band, simplifying input-filter design. Quiescent current is rated at approximately 80 µA typical, and the converter supports output voltages down to 1 V. The SOT-23-6 package is the industry-standard micro-outline footprint for low-power synchronous bucks. The TPS560430YDBVR integrates control logic, gate drivers, and power FETs into one die, using peak current-mode control for stable loop response and predictable inductor selection. The architecture supports both forced PWM and PFM modes, allowing designers to trade light-load efficiency for predictable output ripple. The wide 4 V-36 V input range supports direct connection to industrial 24 V rails, automotive 12 V battery systems, and eMeters without an upstream pre-regulator. Typical applications include industrial automation sensors, factory equipment modules, portable instrumentation, and automotive accessory power rails. The 600 mA rating suits sub-system loads such as microcontrollers, transceivers, and display backlights. The wide VIN range and small package also make it attractive for distributed POL (point-of-load) power in space-constrained designs. When designing with this part, follow the datasheet's recommended inductor and capacitor values for the 2.1 MHz variant to maintain stability across the full duty-cycle range. Place the input bypass capacitor as close as possible to VIN and GND to minimize switching-node ringing and EMI. This page synthesizes verified distributor pricing, same-brand drop-in alternatives, and practical design notes not found on the manufacturer product page alone, giving you a single-page engineering reference for the TPS560430YDBVR.
TPS561201DDCR - 17V 1A Synchronous Buck | Texas Instruments
The TPS561201DDCR is a 1A synchronous step-down (buck) converter from Texas Instruments, operating from a 4.5V to 17V input. It provides an adjustable output from 0.76V to 7V, switching at a fixed 580kHz. Housed in a 6-pin SOT-23-THN (DDC) package measuring 1.6mm x 2.9mm, it is designed for space-constrained, cost-sensitive point-of-load applications. A synchronous step-down voltage regulator is a DC-DC converter that uses two actively controlled switches (high-side and low-side MOSFETs) to efficiently lower a higher DC voltage to a lower regulated voltage. Unlike asynchronous regulators, the low-side switch replaces the freewheeling Schottky diode, reducing conduction losses and improving efficiency. This converter belongs to the broader family of switch-mode power supplies (SMPS) within power management ICs. Key features include D-CAP2 control, which simplifies loop compensation by requiring only a low-ESR ceramic output capacitor for stable operation. The device has an enable pin for power sequencing, fixed soft start to limit inrush current, and pulse skip mode for light-load efficiency. The quiescent current is only 0.4mA typical, contributing to high light-load efficiency. The device integrates a synchronous rectifier, eliminating an external Schottky diode and reducing board area. Internal cycle-by-cycle current limit and thermal shutdown protect the IC. The fixed 580kHz switching frequency offers a balanced trade-off between efficiency and component size, enabling small inductors and output capacitors. D-CAP2 mode also provides fast transient response, making it suitable for processors and FPGAs with dynamic loads. Typical applications include set-top boxes, smart TVs, networking equipment, industrial control systems, white goods, and battery-powered devices. On a 12V industrial bus, it can produce clean 3.3V or 5V rails for MCUs and I/O. The enable pin supports power sequencing in multi-rail systems. When designing with this part, use approximately 10uF input and 22uF output capacitance placed close to the device. Because the SOT-23 package is small, pay careful attention to thermal dissipation; at higher power loss a larger copper area is necessary to keep the junction temperature within the -40C to +125C range.
TPS562201DDCT - 2A 17V Sync Buck Converter | Texas Instruments
The Texas Instruments TPS562201DDCT is a 2A synchronous step-down (buck) converter in a compact 6-pin SOT-23-Thin (DDC) package, operating from a 4.5V to 17V input and producing an adjustable output from 0.768V to 7V at a fixed 580 kHz switching frequency. It integrates both high-side and low-side MOSFETs, eliminating the need for an external Schottky diode. A DC-DC switching regulator converts a higher input voltage to a lower regulated output using power switches and an inductor, offering far higher efficiency than a linear regulator. Within the power management IC hierarchy, the TPS562201 belongs to the synchronous buck converter family and is part of TI's D-CAP2 controller portfolio for point-of-load (POL) rails. Key features include the D-CAP2 control architecture, which provides fast transient response and supports both low-ESR and ceramic output capacitors with internal compensation, so no complex loop design is needed. Eco-mode pulse-skip operation maintains high efficiency at light loads by reducing switching frequency, while the 580 kHz fixed frequency allows small inductors and capacitors. Technically, the internally compensated adaptive on-time loop reacts within microseconds to load steps, making the part well suited to processor core and I/O rails. Internal soft-start limits inrush current, and the device is specified over a -40C to +125C junction temperature range in the 2.9 mm x 1.6 mm SOT-23-Thin package. Typical applications include 5V and 12V distributed-power point-of-load regulation, networking and telecom equipment, industrial automation systems, set-top boxes, and digital TV power supplies, where the 17V maximum input accepts 12V rails with headroom. Design consideration: keep the output voltage within the 0.768V to 7V range and use the datasheet-recommended ceramic output capacitance for D-CAP2 stability; place input decoupling capacitors as close as possible to the VIN and GND pins. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TPS563207DRLR - 3A 17V Synchronous Buck Converter | TI
The Texas Instruments TPS563207DRLR is a simple, easy-to-use 3-A synchronous buck converter in a compact 6-pin SOT-563 (DRL) package measuring just 1.6 mm x 1.6 mm. It accepts an input voltage range of 4.3 V to 17 V and produces an adjustable output down to 0.806 V, making it a space-saving point-of-load power solution. A DC-DC switching regulator (step-down converter) converts a higher input voltage to a lower regulated output using power MOSFET switches, an inductor, and output capacitors. Synchronous buck converters replace the freewheeling diode with a second MOSFET for higher efficiency. Within the power-management IC hierarchy, the TPS563207 is a monolithic buck regulator with integrated high-side and low-side FETs. Key features include D-CAP2 mode control for fast transient response and support of low-ESR output capacitors such as specialty polymer and ultra-low-ESR ceramic types. Fixed-frequency operation in Forced CCM (FCCM) mode maintains small output ripple even at light loads. The 3-A rating with integrated FETs minimizes external component count, and the tiny SOT-563 footprint suits dense PCB layouts. The device is specified from -40C to +125C junction temperature. Internally, D-CAP2 control combines a wide-bandwidth error amplifier with an adaptive on-time generator, enabling near-constant frequency operation and quick response to load steps with minimal output capacitance. Internal compensation and soft-start reduce design effort and board area. Typical applications include 5 V and 12 V rail point-of-load regulation for networking equipment, SSDs and storage, industrial PCs, FPGA/ASIC auxiliary rails, and consumer electronics. The 17-V maximum input covers 12-V buses with margin. Design tip: choose the inductor value and output capacitors per the TI datasheet equations; FCCM mode favors low ripple, while the 0.806-V feedback reference supports low-voltage cores. Verify thermal performance, as the small DRL package dissipates heat mainly through the PCB.
TPS566231 - 6A 18V Sync D-CAP3 Buck Regulator | TI
The Texas Instruments TPS566231 is a cost-effective, high-voltage-input synchronous step-down voltage regulator with integrated FETs, delivering up to 6A of continuous output current. It operates from a 3V to 18V input range, provides an adjustable output down to 0.6V, and comes in a 9-pin PowerVFQFN (RQF) package with pulse skip mode for high light-load efficiency. A synchronous buck converter is a type of DC-DC step-down regulator that uses two integrated transistors (high-side and low-side MOSFETs) to efficiently convert a higher input voltage to a lower output voltage. Unlike asynchronous converters that use a diode for the low-side, synchronous converters replace it with a low-resistance MOSFET, reducing conduction losses and improving efficiency, especially at high output currents. The TPS566231 belongs to the broader family of switching voltage regulators, essential power management ICs that convert and stabilize supply rails in electronic systems. Key features include ultra-low quiescent current (ULQ) for low-bias operation, adjustable soft-start via the SS pin, and up to 98% duty cycle support for low dropout between input and output. Protection is comprehensive: overvoltage protection (OVP), overcurrent protection (OCP), undervoltage lockout (UVLO), overtemperature protection (OTP), and undervoltage protection (UVP) with hiccup mode. The PG (power good) pin is available on the TPS566231P variant for power sequencing in multi-rail systems. The device uses TI's D-CAP3 control architecture, which provides fast transient response without external compensation, simplifying design. Integrated FETs and the compact 9-pin PowerVFQFN package minimize board space, while datasheet efficiency curves show peak efficiency above 90% for typical 12V-to-5V conversions. Typical applications include point-of-load (POL) converters in networking equipment, servers, storage systems, and industrial automation, powering FPGAs, ASICs, and processors where 6A capability and a wide 3V-to-18V input range matter. Pulse skip mode maintains high efficiency at light loads. When designing, select input and output capacitors carefully for stability and low ripple, and use the SS pin to control inrush current during startup.
TPS57140QDGQRQ1 - 42V 1.5A AEC-Q100 Buck Converter | TI
The Texas Instruments TPS57140QDGQRQ1 is an automotive-qualified 42 V, 1.5 A step-down (buck) switching regulator with an integrated 200 mOhm high-side MOSFET, housed in a 10-pin thermally enhanced HVSSOP/MSOP-PowerPAD (DGQ) package. It accepts 3.5 V to 42 V input and produces an adjustable output from 0.8 V to 39 V with peak efficiency at automotive input rails. A DC-DC buck converter is a switching voltage regulator that steps a higher DC voltage down to a lower one using an internal switch, an inductor, and a diode (or synchronous rectifier). Within the power-management hierarchy - voltage regulator -> switching regulator -> step-down converter -> point-of-load regulator - the buck converter is the workhorse of every automotive electronic control unit, converting battery or load-dump-derived rails into clean, efficient low voltages. Key features include AEC-Q100 qualification for 42 V input operation (covering 12 V and 24 V automotive battery systems plus load-dump transients), TI SWIFT (TM) architecture with peak current-mode control for simple external compensation, and Eco-Mode (TM) pulse-skip operation that reduces no-load regulated supply current to just 116 uA. Shutdown current drops to 1.5 uA when the enable pin is pulled low, extending battery life in always-on modules. Technical depth: the current-mode topology provides inherent cycle-by-cycle current limiting, fast transient response, and a single compensation network. The nonsynchronous design (external catch diode) gives freedom to optimize diode voltage rating and thermal placement. The integrated 200 mOhm high-side FET minimizes conduction loss, while the adjustable RT/CLK pin sets switching frequency and supports synchronization to an external clock for EMI-sensitive designs. Typical applications include automotive infotainment and cluster power supplies, camera modules and ADAS sensor rails, body electronics and lighting pre-regulators, and industrial 24 V bus point-of-load conversion. The wide 42 V input rating makes it equally suited to 12 V and 24 V systems without front-end pre-regulation. Design consideration: the nonsynchronous output requires a properly rated Schottky catch diode; at high VIN-to-VOUT ratios, diode loss dominates, so select a 40-60 V Schottky with low reverse leakage at operating temperature. Keep the PowerPAD soldered to a generous ground pour for thermal relief. This page synthesizes distributor pricing, drop-in family alternatives, AEO-optimized FAQs, and practical design notes not found in the manufacturer datasheet, based on data verified 2026-09-10.
TPS57160QDGQRQ1 - 60V 1.5A Buck Converter AEC-Q100 | TI
The Texas Instruments TPS57160QDGQRQ1 is a 1.5 A, 60 V automotive-grade step-down (buck) DC-DC switching regulator with an integrated 200-mohm high-side MOSFET, Eco-Mode control, and an adjustable output from 0.8 V to 58 V, housed in a 10-pin thermally enhanced MSOP-PowerPAD (DGQ) package. A buck converter, or step-down regulator, is a switching power-conversion IC that efficiently reduces a higher input voltage to a lower regulated output by switching an internal or external transistor at high frequency and filtering the result with an inductor and capacitors. Within the power management hierarchy, it sits under DC-DC converters, a subset of voltage regulators, and complements LDOs where conversion efficiency matters more than ultra-low noise. Key features include a wide 3.5 V to 60 V input range with AEC-Q100 automotive qualification, current-mode control that simplifies external compensation, and TI Eco-Mode pulse-skip operation that cuts no-load input supply current to 116 uA. Shutdown supply current via the enable pin is only 1.5 uA, critical for always-connected automotive modules that must minimize quiescent battery drain. Architecturally, the integrated low-drain-to-source on-resistance high-side MOSFET and its gate-drive circuitry inside the package allow high efficiency while keeping junction temperature low at high output currents. Internally fixed undervoltage lockout is set at 2.5 V and is adjustable via the enable pin for tighter input supervision. A RT/CLK pin supports resistor-programmed switching frequency as well as synchronization to an external clock, easing EMI planning in multi-converter systems. Typical applications include automotive 12 V and 48 V battery-rail point-of-load supplies, industrial 24 V bus step-down power, and telecom or avionics wide-input auxiliary rails feeding microcontrollers, CAN transceivers, and sensors. The 60 V rating provides ample surge headroom on load-dump-prone automotive inputs. When designing with this part, keep the PowerPAD soldered to a substantial copper ground plane for thermal performance, and verify compensation network values against the switching frequency chosen. Non-synchronous topology means a proper external catch diode must be selected for peak currents. This page synthesizes distributor pricing, drop-in alternatives, comparison tables, and practical design notes not found in the manufacturer datasheet alone.
TPS60400-Q1 - 60mA Charge Pump Inverter | TI Automotive
The TPS60400-Q1 is an unregulated charge pump voltage inverter from Texas Instruments, designed to generate a negative output voltage from a positive input supply ranging from 1.8 V to 5.25 V. It delivers up to 60 mA of output current and requires only three small 1-µF ceramic capacitors for operation. The device is AEC-Q100 qualified for automotive applications, ensuring reliability in harsh environments. The TPS60400-Q1 features a variable switching frequency that reduces operating current in applications with a wide load range and enables the use of low-value capacitors, making it an efficient and compact solution for generating negative supply rails. A charge pump voltage inverter is a type of DC-DC converter that uses switched capacitors to invert the polarity of an input voltage. Unlike inductive-based converters, charge pumps do not require inductors, which reduces electromagnetic interference (EMI) and simplifies PCB layout. The TPS60400-Q1 belongs to the TPS6040x-Q1 family of charge pump inverters, which are part of the broader category of switching regulators and power management ICs. These devices are essential in systems where a negative supply is needed for analog circuits, such as operational amplifiers, comparators, and data converters. Key features of the TPS60400-Q1 include its wide input voltage range of 1.8 V to 5.25 V, 60 mA output current capability, and low quiescent current due to variable frequency operation. The device operates with a switching frequency that adjusts based on load, optimizing efficiency across the load range. It also features a shutdown mode to reduce power consumption when the output is not needed. The TPS60400-Q1 is available in the small SOT-23 (DBV) package, which is ideal for space-constrained automotive and portable applications. Technically, the TPS60400-Q1 uses a charge pump architecture with an internal oscillator and switching transistors. The variable frequency control reduces switching losses at light loads, improving efficiency. The device can also be configured to generate a doubled positive output (2Vin) or a divided output (Vin/2) by connecting the capacitors differently, providing flexibility in system design. The output is unregulated, so the output voltage tracks the input voltage minus a small drop, which is acceptable for many analog applications. Typical applications include generating a negative rail for operational amplifiers in automotive sensor interfaces, powering LCD bias circuits, and providing a negative supply for audio amplifiers and data converters. The TPS60400-Q1 is also used in battery-powered devices where a negative voltage is required for analog circuitry. Its small footprint and minimal external components make it an attractive choice for compact designs. When designing with the TPS60400-Q1, it is important to place the three 1-µF ceramic capacitors close to the device to minimize parasitic inductance and ensure stable operation. The input capacitor should be placed between the IN pin and ground, and the output capacitor between the OUT pin and ground. The flying capacitor connects between the C1+ and C1- pins. Proper layout is critical to achieve the specified output ripple and efficiency.
TPS60400DBVR - 60mA Charge Pump Inverter | Texas Instruments
The Texas Instruments TPS60400DBVR is an unregulated 60 mA charge pump voltage inverter housed in a 5-pin SOT-23 (DBV) package. It inverts a positive input voltage rail (1.6 V to 5.5 V) into a corresponding negative output (-Vin) with up to 60 mA of load current, requiring only three external 1 µF ceramic capacitors for a complete solution. The device offers variable switching frequency (typically 50 kHz to 250 kHz depending on load) and supports inputs from a single Li-Ion cell, two or three NiCd/NiMH/alkaline cells, or a 3.3 V/5 V pre-regulated rail. A charge pump is a DC-DC converter that uses capacitors instead of inductors to store and transfer energy, making it ideal for low-current, low-noise, space-constrained applications. Within the broader power management hierarchy, charge pumps sit alongside LDOs and switching regulators as a third topology option - cheaper and smaller than an LDO when output regulation is not needed, lower noise than an inductive buck-boost converter when the load is light. The TPS6040x family specifically targets negative rail generation, which is essential for biasing op-amps, sensor interfaces, and LCD panels. Key specifications of the TPS60400DBVR include: input voltage range of 1.6 V to 5.5 V, output current up to 60 mA, typical output resistance of 15 ohms at 25 °C, quiescent current around 1 mA, and an operating temperature range from -40 °C to +85 °C. The SOT-23-5 footprint consumes less than 30 mm² of board area, and the device requires no magnetic components. The TPS60400DBVR uses a two-stage switched-capacitor inverter in which internal MOSFETs alternately charge and discharge flying capacitors each switching cycle. Compared to inductive boost/SEPIC topologies, this architecture eliminates inductor DCR losses, EMI ringing, and radiated magnetic fields, while reducing BOM cost and PCB height. The variable-frequency control loop modulates the oscillator with load current to maintain reasonable efficiency across the full 0-60 mA range. Typical applications include generating small negative bias rails for operational amplifiers, ADCs, and DACs; powering LCD contrast/bias circuits; supplying GaAs FET gate bias in RF subsystems; and creating -5 V supplies from a 3.3 V logic rail in portable, battery-powered, or industrial embedded designs where inductors cannot be used. For design success, prioritize low-ESR ceramic capacitors on both flying and reservoir positions, keep the input supply well-bypassed, and verify that 60 mA covers the worst-case dynamic load. When regulation is required, follow the TPS60400DBVR with an LDO such as a TPS7A30 series negative LDO. This page integrates distributor pricing, verified drop-in pin-compatible alternatives, and practical design notes not duplicated in the bare manufacturer datasheet.
TPS61020DRCR - 1.5A 96% Efficient Boost Converter | DRC-10 | TI
The Texas Instruments TPS61020DRCR is a 1.5-A switch, 96%-efficient synchronous boost converter with down-mode (pass-through) operation, housed in a 10-pin VSON (DRC) PowerPAD package measuring 3 mm x 3 mm. It accepts an input voltage range of 0.9 V to 6.5 V and produces an adjustable output from 1.8 V to 5.5 V, retaining regulation when VIN exceeds the nominal VOUT (the so-called "down-mode" pass-through behavior that lets a single-cell Li-ion or three-cell alkaline stack feed a 3.3 V or 5 V rail without overshoot at high input). A boost (step-up) DC-DC converter is a switching power supply that stores energy in an inductor during the switch on-time and releases it into the output capacitor during the off-time, producing an output voltage higher than the input. Synchronous rectification replaces the traditional Schottky diode with a low-side MOSFET, which lowers conduction loss and lifts efficiency to 96 percent at moderate loads. The TPS61020DRCR belongs to the DC-DC converter > switching regulator > step-up regulator > power management IC hierarchy, and it is targeted at portable, battery-powered products where every milliwatt matters. The headline specifications are 0.9 V to 6.5 V input, 1.8 V to 5.5 V adjustable output, 1.5 A internal switch current, 25 µA quiescent current, and a fixed switching frequency that enables small external magnetics. A key feature is the down-mode pass-through: when VIN is above VOUT the converter effectively behaves like an LDO, suppressing switching ripple on the output. The exposed thermal pad (PowerPAD) drops theta_JA substantially, allowing 1 A-plus continuous output without external heatsinking on a properly laid-out PCB. Architecturally, the TPS61020 uses current-mode PWM control with pulse-skipping at light load to keep quiescent current near 25 µA. Its adjustable version sets VOUT through an external resistor divider tied to the FB pin, while fixed-output variants in the TPS6102x family ship at common rails. Anti-rejecting the synchronous rectifier at full duty in down-mode is a critical detail of the topology, and a small L-C output filter plus a ceramic input capacitor are sufficient for most applications. Typical applications include single-cell Li-ion to 5 V boost supplies for USB OTG, three-cell alkaline or NiMH to 3.3 V rails for handheld meters, MP3 players and digital cameras, and any portable product that must down-convert seamlessly when a fresh battery sits above the regulated rail. Designers also use it in white-LED driver front-ends and small TFT bias generators. When designing, select an inductor with low DCR (under 50 mΩ) and a saturation rating above 2 A; use X7R 10 µF ceramic capacitors on both VIN and VOUT placed within 2 mm of the package; and provide at least four thermal vias under the PowerPAD to the inner ground plane to keep junction temperature within ratings at full 1.5 A load. This page synthesizes distributor pricing, parametric drop-in alternatives, and PCB layout notes drawn from the TI datasheet and DigiKey/Mouser listings - context that the bare datasheet does not present in one place.
TPS61086DRCR - 18.5V 2A Boost Converter 1.2MHz | Texas Instruments
The Texas Instruments TPS61086DRCR is a high-frequency, high-efficiency step-up DC-DC converter with an integrated 2.0-A, 0.13-ohm power switch, capable of providing an output voltage up to 18.5 V. It operates from a 2.3-V to 6.0-V input voltage range and uses a fixed 1.2-MHz pulse-width-modulation (PWM) controller, allowing small external inductors and capacitors and fast transient response. The device is available in a 10-pin VSON (DRC) package with an exposed thermal pad. A boost converter, also known as a step-up converter, is a type of DC-DC switching regulator that produces an output voltage higher than its input voltage. It is a fundamental building block in power management, sitting within the hierarchy of switching regulators, which belong to the broader category of power management integrated circuits (PMICs). Boost converters are essential in battery-powered applications where the battery voltage is lower than the required system rail. Key features include a 2.0-A switch current limit, an adjustable output voltage from 2.8 V to 18.5 V, and a power save mode for improved efficiency at light loads, with the option to force PWM operation. The device also features adjustable soft-start to limit inrush current, thermal shutdown protection, and low quiescent current. The integrated 0.13-ohm switch minimizes conduction losses, contributing to high efficiency across a wide load range. The TPS61086 uses a current-mode control architecture with a fixed 1.2-MHz switching frequency, balancing efficiency and external component size. The high switching frequency enables small, low-profile inductors and ceramic capacitors, reducing overall solution footprint. Power save mode reduces switching frequency at light loads to maintain efficiency, and forced PWM mode supports noise-sensitive applications. Typical applications include battery-powered portable devices, white LED drivers, OLED display bias, and general-purpose step-up voltage regulation. The wide input range and high output capability suit loads requiring voltages above the battery rail. The small package and high efficiency make it ideal for space-constrained designs. When designing with the TPS61086DRCR, ensure proper PCB layout with short, low-inductance paths for the switch node and output capacitor. The exposed pad should be soldered to a large copper area for thermal dissipation, and the inductor saturation current must exceed the peak switch current for stable operation.
TPS61096ADSSR - 28V Boost Converter, 1µA IQ | Texas Instruments
The Texas Instruments TPS61096ADSSR is a 28V output voltage synchronous boost converter with 1µA ultra-low quiescent current, housed in a 12-pin WSON (DSS) exposed pad package. It delivers up to 350 mA switch current from input voltages of 1.8V to 5.5V and produces an adjustable output of 4.5V to 28V. The device is purpose-built for applications powered by two-cell alkaline, single-cell Li-Ion, or Li-polymer batteries that require high efficiency at light load. A boost converter (step-up DC-DC switching regulator) is a power management integrated circuit that raises a lower DC input voltage to a higher DC output voltage using an inductor, switch, and rectifier network. It belongs to the broader hierarchy of switching voltage regulators, then voltage regulators, then power management ICs. The TPS61096A family is specifically optimized for ultra-low standby current to extend battery life in always-on systems. Key features of the TPS61096ADSSR include true shutdown isolation, internal synchronous MOSFETs, output disconnect during shutdown, programmable output voltage via an external resistor divider, and integrated soft-start. Thermal shutdown and over-current protection safeguard the device under fault conditions. The 1µA quiescent current is among the lowest in its class, making this regulator exceptionally well suited to IoT nodes, wearables, and metering applications that spend most of their operational life in standby. The TPS61096ADSSR uses a peak-current-mode control architecture with a fixed internal switching frequency (typically around 1 MHz, depending on variant), enabling a small 4.7µH inductor. Synchronous rectification eliminates the need for an external Schottky diode, shrinking the BOM and improving efficiency at heavy loads. The output disconnect feature prevents reverse current flow from VOUT back through the inductor to the battery when the converter is disabled, preserving battery energy and protecting the system. Typical applications include smart meters and gas/water AMR modules, ePaper and e-ink displays, two-cell alkaline-powered toys and portable instruments, single-cell Li-Ion powered OLED bias supplies, and low-power wireless sensor nodes. The wide output range of 4.5V to 28V also supports bias rails for TFT displays, IGBT gate drivers, and piezo buzzer excitation. When designing with this part, ensure the inductor has a saturation current rating at least 30% above the peak switch current to prevent saturation at cold temperatures. Place the input capacitor, output capacitor, and bootstrap capacitor as close to the IC as possible. The output disconnect feature must be considered when cascading boost stages. This page synthesizes distributor pricing, drop-in alternative cross-references, and practical design notes not consolidated in the manufacturer datasheet.
TPS610981 - 3.3V Ultra-Low IQ Boost + LDO | Texas Instruments
The Texas Instruments TPS610981 is an ultra-low quiescent current synchronous boost converter with an integrated LDO, providing two regulated output rails from a single low-voltage input. It delivers a fixed 3.3V output and operates from input voltages as low as 0.7V, supporting one-cell alkaline, NiCd, NiMH, coin cell, and one-cell Li-Ion/Li-polymer batteries. The device comes in a compact 6-pin WSON (1.5 mm x 1.5 mm) surface-mount package (DSG suffix). A boost converter is a type of switching DC-DC power supply (part of the broader power management IC hierarchy) that steps an input voltage up to a higher regulated output using an inductor, switching FETs, and a control loop. Unlike a linear regulator, a boost converter can multiply battery voltage, making it essential when system electronics need 3.3V but the cell provides only 1.5V or a discharging Li-Ion cell falls below 3.3V. The TPS61098x family additionally integrates a second low-dropout linear regulator or load switch, eliminating an external LDO and board space. Key features include synchronous rectification for high light-load efficiency, ultra-low quiescent current that extends battery life in always-on systems, integrated output discharge, and power good signaling per TI's product comparison data. The -40C to +85C operating range suits industrial and portable environments. Technically, the synchronous topology removes the external Schottky diode, improving efficiency and reducing BOM count. The two-rail architecture lets designers power a microcontroller rail and a separate sensor or RF rail from one converter with excellent cross regulation. Typical applications include battery-powered sensor nodes, energy harvesting systems, portable medical devices, and low-power IoT endpoints where every microamp of standby current matters. Design consideration: because the input can be driven below 0.7V by a deeply discharged cell, verify minimum input and inrush behavior, and follow TI datasheet (Rev. F) layout guidance for short inductor and output capacitor traces to ensure loop stability.