Power Management
Subcategories
Products (2,800+)
NJW4181U3-15B - 100mA 35V LDO Regulator, 1.5V Fixed | Nisshinbo
The Nisshinbo Micro Devices NJW4181U3-15B is a high-input-voltage, very-low-quiescent-current 100 mA LDO linear regulator with a fixed 1.5 V output, housed in a 3-pin SOT-89 (U3) package. It accepts input voltages from 17 V to 35 V, making it well suited as a post-regulator after 24 V industrial buses or 24 V to 30 V sensor/actuator rails, and it is a pin-compatible upgrade for legacy 78L-series 3-terminal regulators. An LDO (Low-Dropout) linear regulator is a DC voltage regulator that maintains a stable output voltage even when the input-to-output differential is small. As a member of the linear regulator family within the broader voltage-regulator and power-management-IC hierarchy, an LDO uses a pass element (typically a PNP transistor or P-channel MOSFET) that is never fully saturated, trading efficiency for low noise and fast transient response. LDOs are preferred over switching regulators in noise-sensitive analog and sensor signal chains because they introduce no switching ripple. Key features of the NJW4181U3-15B include 100 mA continuous output current, 1.5 V fixed output (factory-trimmed, no external resistors required), 9 µA typical quiescent current to minimize standby drain on battery-backed systems, and an input range that comfortably covers 24 V industrial rails. The part is offered in two packages: the 3-pin SOT-89 (U3) for direct 78L-series replacement, and the smaller ESON6 DFN for space-constrained sensor modules. Per the manufacturer datasheet, the device integrates internal current limit and thermal shutdown protection. Architecturally, the NJW4181U3-15B uses a PNP pass element with a precision bandgap reference and error amplifier, achieving the very-low-Iq target by biasing internal nodes with low-current mirrors. The wide VIN tolerance is enabled by the high-VCEO PNP process used at Nisshinbo's bipolar fab, allowing safe operation up to 35 V without external protection. Compared with classic 78L05/78L12 parts, the NJW4181 family lowers quiescent current by roughly an order of magnitude while keeping the same 3-terminal pinout. Typical applications include 24 V industrial sensor power conditioning, battery-powered IoT endpoints, microcontroller always-on rails, metering and HVAC peripherals, and any subsystem requiring post-regulation after a 24 V to 30 V bus. The fixed 1.5 V output is a common core voltage for low-power digital signal chains and legacy logic families. When designing with this part, ensure that input-to-output headroom stays within the dropout limit at the required load, and provide adequate copper area under the SOT-89 tab for thermal dissipation. For battery applications, the 9 µA Iq becomes the dominant standby draw and should be included in the energy budget. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
NJW4184U3-05B-TE1 - 5V 300mA High-Voltage LDO | Nisshinbo
The Nisshinbo Micro Devices NJW4184U3-05B-TE1 is a high-voltage, very-low quiescent current low-dropout (LDO) linear regulator with a fixed 5.0V output, housed in a 3-pin SOT-89-3 (U3) surface-mount package. It delivers up to 300 mA of output current from a wide 4.0 V to 35 V input range, with a typical dropout of approximately 100 mV at full load and only 9 to 22 uA of quiescent current, making it ideal for always-on and battery-powered designs. An LDO (Low-Dropout) linear regulator is a type of linear voltage regulator that maintains a stable output voltage even when the input voltage is only marginally above the output voltage. Within the broader power-management IC hierarchy, an LDO is a linear regulator, which itself is a sub-class of voltage regulators. Unlike a switching DC-DC converter, an LDO dissipates the VIN-VOUT difference linearly, providing much lower output noise and a smaller PCB area at the cost of efficiency. The NJW4184 specifically targets high-voltage, low-IQ applications where conventional LDOs would draw excessive quiescent current. Key features include a 5.0 V fixed output (the -05B suffix denotes the 5 V version; the series covers 2.5 V to 15 V in different voltage grades), 100 to 200 mV dropout at 300 mA, an integrated current-limit and thermal-shutdown protection block, and a typical quiescent current of only 9 uA (rising to 22 uA at full load). The SOT-89-3 package offers an exposed copper tab for PCB thermal dissipation, providing approximately 2.4 W of allowable power dissipation when properly soldered to an appropriate copper land pattern. The NJW4184 uses a PNP pass-transistor topology with a precision bandgap reference, which enables the ultra-low quiescent current while still providing relatively high PSRR for low-noise rails. The 35 V input tolerance supports industrial 24 V bus rails and 12 V automotive environments with substantial transient headroom, which is uncommon for general-purpose 6 V or 12 V LDOs. Typical applications include industrial sensor power, IoT battery-powered nodes, HVAC controllers, 24 V industrial-bus regulation, and standby/auxiliary rails for metering equipment. In each case, the wide input range and 9 uA IQ allow the regulator to be tied directly to a 24 V rail without a pre-regulator. Designers should follow IMI Power Layout guidelines: connect a 0.1 uF ceramic input capacitor close to VIN, a 1 uF to 10 uF ceramic output capacitor close to VOUT, and maximize the copper area under the thermal tab to achieve the rated 2.4 W dissipation. This page synthesizes distributor pricing, drop-in voltage-grade alternatives, and practical thermal guidance not aggregated on competing distributor product pages.
NPS7601UL - 1.5A Low-Iq Load Switch, WLCSP | Nexperia
The Nexperia NPS7601UL is a compact, single-channel, regulated forward-drop load switch rated for 1.5 A continuous load current over a 1.5 V to 5.5 V operating range, housed in a wafer-level chip-scale package (WLCSP). It integrates true reverse-current blocking, controlled turn-on, and an always-on core that keeps the protection circuitry active even when the switch is disabled. According to the Nexperia NPS7601 datasheet, the device targets portable, battery-powered, and space-constrained designs where PCB area, quiescent current, and downstream protection are equally critical. What is a load switch? A load switch is a discrete or integrated power-distribution switch - typically a controlled MOSFET plus support circuitry - placed between an upstream rail (battery, PMIC, DCDC output) and a downstream subsystem. When the function block is needed, the load switch is asserted ON to deliver current; when idle, it is asserted OFF to disconnect the load and starve leakage. This category belongs to power distribution ICs, which sit beneath power management and ultimately power-conversion ICs in the system hierarchy. Compared with a discrete P-FET + resistor divider, an integrated load switch adds reverse-current blocking, inrush control, and ultra-low quiescent current in a tiny footprint. Key features of the NPS7601UL include an integrated low-Rdson pass element, factory-set or adjustable current-limit behaviour, controlled rise time via an external CT pin, low quiescent current on the order of single-digit microamps, and true reverse-current blocking (TRCB) that prevents current from flowing back into the source rail when VOUT exceeds VIN. The WLCSP package enables sub-1 mm x 1 mm PCB placement, suiting wearables, hearables, smartphones, IoT sensors, and other miniaturised systems where every square millimetre matters. The forward-drop regulation topology maintains VOUT close to VIN while the device is ON, minimising conduction losses. Typical applications include always-on rails for low-power microcontrollers, power-rail gating for image sensors, OLED display bias switching, battery protection and isolation paths, USB Type-C cable power delivery line switches, and any subsystem requiring sequenced or controlled power-up. The reverse-current blocking feature is particularly valuable when multiple load switches share a bus, because it prevents back-feeding from a powered-up rail into an unpowered rail. When designing with the NPS7601UL, place the device close to the upstream source and add a 1 uF to 10 uF ceramic bypass on the VIN and VOUT pins to stabilise the gate-driver loop and absorb load transients. The CT capacitor sets the VOUT rise time - larger values produce slower, lower-inrush turn-on at the cost of longer enable-to-ready delay. Keep the WLCSP land pattern symmetric and avoid placing signal traces under the die to prevent mechanical stress on the solder joints during thermal cycling. This page synthesises distributor pricing, drop-in Nexperia alternatives, and application-specific design notes that are not consolidated in the manufacturer datasheet, helping engineers compare, select, and source the NPS7601UL quickly.
NPS7601UPZ - 1.5A Low-IQ Load Switch WLCSP-4 | Nexperia
The Nexperia NPS7601UPZ is a compact, single-channel, regulated forward-drop P-channel high-side load switch rated for 1.5 A continuous output current, housed in a 4-ball WLCSP (0.72 mm x 0.72 mm) package. It operates across an input voltage range of 1.5 V to 5.5 V, providing efficient switching between power rails while minimizing power loss and enabling precise load control in space-constrained designs. A load switch is a power-management IC that sits between a DC rail and its load, turning the rail on or off under logic control. Unlike a full PMIC, a load switch does not regulate voltage - it simply connects or disconnects an existing rail with low quiescent loss. The NPS7601UPZ belongs to the high-side load switch family within the broader category of power distribution switches and load drivers, and is a member of the surface-mount WLCSP class of discrete power switches used in modern portable electronics. Key features include true reverse-current blocking (RCB) in both on and off states, an active-high EN input that fully isolates the load when held low, low quiescent current for always-on battery applications, and controlled turn-on to limit inrush current. The WLCSP-4 (0.72 mm x 0.72 mm) footprint occupies less than 0.5 mm² of board area, making it one of the smallest 1.5 A load switches available, and the P-channel MOSFET architecture eliminates the need for a charge pump. The NPS7601UPZ architecture uses a P-channel MOSFET pass element driven by an internal charge-compensated gate driver, with on-die reverse-current detection comparators that gate both forward conduction and reverse leakage. Devices can be paralleled for higher current capability while sharing a single control signal, simplifying multiphase or high-current power-path designs. Typical applications include smartphone and wearable PMIC auxiliary rails, USB port power gating, IoT sensor and module power-rail switching, battery-powered device sleep-rail management, and portable medical electronics where low standby current and small footprint are critical. Always-on true reverse-current blocking also makes it well-suited to OR-ing two supplies without external MOSFETs. When designing with this device, place input and output ceramic bypass capacitors as close as practical to the WLCSP balls to minimize parasitic inductance and ensure stable reverse-current-block operation. For parallel configurations, ensure each device sees symmetrical PCB impedance for predictable current sharing. This page synthesizes Nexperia and authorized-distributor specifications, drop-in alternatives in the same WLCSP-4 footprint, and design notes not collected in the manufacturer short datasheet - giving engineers a single, citation-ready reference.
NQ442L2C - 225A NQ Panelboard Interior, 42-Pole | Schneider Electric
The Schneider Electric NQ442L2C is a 42-pole NQ panelboard interior rated at 225 A main lugs with copper bus, designed for 3-phase 4-wire systems at 240 VAC and 48 VDC. As part of the Square D NQ panelboard family, NQ442L2C accepts QO and QOB bolt-on branch circuit breakers up to 225 A, providing 200% rated neutrals for non-linear loads such as switch-mode power supplies and IT equipment. A panelboard interior is the central assembly of a power distribution panelboard that mounts the bus structure, branch breakers, and neutral/ground hardware inside an enclosure. In the taxonomy of electrical distribution hardware, panelboards sit beneath switchboards and loadcenters, distributing power from a feeder or transformer to final branch circuits. NQ panelboards are the workhorse of North American light-commercial and industrial power distribution, with cULus listing for both US and Canadian installations. Key features of the NQ442L2C include 42 branch-circuit pole spaces, 225 A main lugs, copper bus bars for lower voltage drop and superior thermal performance versus aluminum, and convertible main-lug/main-breaker construction. The interior mounts in standard Square D NQ enclosures and accepts the QO/QOB branch breaker family, the widest breaker offering of any North American panelboard line. Typical applications include 240 VAC three-phase feeder distribution in office buildings, retail spaces, light-industrial plants, healthcare clinics, data-center row power distribution, and as a sub-panel in larger electrical rooms. The NQ442L2C is interchangeable with other NQ 42-circuit interiors when installing, replacing, or expanding existing Square D installations. When designing with NQ442L2C, derate the bus per NEC Article 408 when more than 42 circuits of breakers at 100% are present - total breaker handle count can exceed 42. Provide adequate enclosure ventilation for continuous 225 A operation.
NSI50350AST3G - 350mA 50V Linear Constant Current Regulator | onsemi
The onsemi NSI50350AST3G is a 350 mA linear constant current regulator (CCR) housed in a 2-pin SMC surface-mount package, designed for regulating current in LEDs from a wide voltage range. Key specifications include a maximum operating voltage of 50 V, a regulated current of 350 mA ±10%, and a maximum power dissipation of 5.8 W with a negative temperature coefficient that protects LEDs from thermal runaway. A linear constant current regulator (CCR) is a two-terminal solid-state device that functions similarly to a self-biased transistor (SBT) and provides a fixed, regulated current over a wide input voltage range. Unlike a switching LED driver, a CCR has no switching frequency and therefore introduces no EMI. Within the broader power management hierarchy, a CCR sits below switching LED drivers and current-mode linear regulators, above simple ballast resistors, and is used wherever a compact, robust, low-noise current source is required for LED strings. Key features include the SBT architecture, which eliminates the need for external components such as sense resistors, inductors, or capacitors. The negative temperature coefficient reduces regulated current as junction temperature rises, preventing the catastrophic thermal runaway that occurs when LEDs are driven by a constant-voltage source. The device is rated for up to 50 V anode-to-cathode voltage, making it suitable for multi-LED strings in automotive and architectural lighting. Technically, the NSI50350AST3G operates as a self-biasing current source where the regulated current is set by internal bandgap-referenced transistor matching. The wide voltage compliance range (from a few volts up to 50 V) allows the regulator to drop a varying voltage as the LED string forward voltage changes with temperature and aging, while holding current constant. The 2-pin SMC package offers a low thermal resistance suitable for dissipating up to 5.8 W with proper PCB land pattern design. Typical applications include automotive interior and exterior LED lighting, signage and architectural illumination, signage backlighting, and emergency lighting strips. The CCR is also used in indicator LEDs on industrial equipment where robust, surge-tolerant current regulation is required. When designing with this device, ensure adequate PCB copper area for heat dissipation because the CCR drops the difference between the supply voltage and the LED string forward voltage as heat. Minimum series voltage overhead should be calculated for the worst-case cold-start condition when LED forward voltage is highest. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical thermal design notes not found in the manufacturer datasheet alone.
NUD3124DMT1G - 28V 150mA Automotive Inductive Load Driver | onsemi
The onsemi NUD3124DMT1G is an automotive-grade inductive load driver in a 6-pin SC-74 (SOT-457) package that integrates a 28V N-channel MOSFET with logic-level input driving and an internal free-wheeling diode clamp, delivering up to 150 mA continuous load current for relays, solenoids, and small DC motors. According to the onsemi NUD3124 datasheet, the device accepts a logic-level input (compatible with 1.8V/3.3V/5V logic gates, inverters, and microcontrollers) and integrates all the protection components required for safe switching of inductive loads. An inductive load driver is a type of low-side power switch IC that combines a power MOSFET with built-in flyback protection, allowing compact, single-component control of relays, solenoids, valves, and small DC motors without the need for an external free-wheeling diode. The NUD3124 belongs to the broader power management IC category and is one of the smallest single-channel low-side switch solutions available in an SC-74 outline. Key features include 28V maximum load supply, 150 mA continuous drain current, integrated N-channel MOSFET plus integrated clamp diode, logic-level input threshold, and automotive-grade qualification (AEC-Q100) for harsh-environment applications. The internal flyback clamp eliminates the need for an external diode, simplifying PCB layout and reducing BOM count when compared with discrete MOSFET-plus-diode solutions. The NUD3124 uses an N-channel MOSFET output stage with on-resistance suitable for sub-200 mA loads. The internal Zener/clamp network absorbs the inductive kick when the load is de-energized, protecting both the driver IC and the surrounding circuitry. The device is qualified to automotive reliability standards, making it well suited for body electronics, climate control modules, and powertrain peripherals. Typical applications include driving relays and solenoids in automotive body modules, small DC motors in HVAC actuators, lamps and LED indicators, and any low-side inductive switching where a compact, integrated solution is preferred. It is commonly used in BCM (body control modules), HVAC door-lock actuators, and windshield wiper control. When designing with this part, ensure the load supply does not exceed 28V and that the load current remains below 150 mA continuous. The integrated diode handles inductive flyback; an external TVS or free-wheeling diode is generally not required, simplifying the BOM. This page synthesizes distributor pricing, drop-in alternative analysis, and practical design notes that complement the onsemi NUD3124 datasheet.
NX5P2553GV - Precision Adjustable Current-Limited Power Switch | NXP
The NXP Semiconductors NX5P2553GV is a precision adjustable current-limited power switch in a 6-pin TSOP (SOT-457/SC-74 equivalent) package, designed for USB and other hot-swap / power-distribution applications. The device integrates a single N-channel MOSFET pass element controlled by NXP's precision analog core, providing programmable current limiting from approximately 100 mA up to the full load rating. Headline parameters include a typical on-resistance (RDS(on)) of approximately 90 mOhm at 5V VGS, an input voltage range of approximately 2.5V to 6.5V, and a continuous load current capability in the 1A to 2A class depending on thermal conditions. The TSOP-6 (SOT-457) package with gull-wing leads is intended for compact PCB designs. What is a current-limited power switch? A current-limited power switch is an integrated semiconductor that combines an N-channel MOSFET pass element with protection, control, and fault-reporting circuitry on a single die. It sits between a power source (typically a USB VBUS rail or a battery) and a downstream load, providing controlled turn-on, programmable current limiting, and automatic isolation during fault events. As a category, current-limited power switches belong to the power management hierarchy: power switch -> load switch -> power management IC -> semiconductor. They are distinct from linear regulators (which actively regulate voltage) and from DC-DC converters (which switch at high frequency). Key features include under-voltage lockout (UVLO) that prevents the switch from operating with insufficient input headroom, over-current protection (OCP) with an externally programmable ILIM threshold set by a resistor to ground, over-temperature protection (OTP) that latches or auto-restarts the switch when junction temperature exceeds the safe limit, and reverse-bias protection that blocks current flow when VOUT exceeds VIN. The ILIM pin enables precision current-limit adjustment, and the open-drain fault flag (FLAG or PG/FG) signals fault conditions to a host controller. Architecturally, the NX5P2553 uses a low-RDS(on) N-channel MOSFET pass element driven by an internal charge pump, ensuring full enhancement across the supported input range. The protection comparators and reference circuits use bandgap-referenced thresholds for accuracy over temperature. The TSOP-6 package provides a thermal pad for heat dissipation, though at sustained high currents the on-chip OTP will engage and cycle the switch to protect silicon integrity. Typical applications include USB port power switching in hubs, chargers, and peripherals; power-distribution switches in portable consumer electronics; load-management circuits in mobile devices; battery-pack protection interfaces; and any system needing controlled inrush with automatic fault isolation. The wide input range and small footprint also suit embedded IoT modules and single-board computer accessory ports. When designing with this device, calculate the ILIM resistor based on the desired trip current and verify the worst-case power dissipation at maximum load and minimum VIN. Place the input and output ceramic bypass capacitors close to the device pins and ensure the FLAG pull-up is correctly referenced. Avoid routing high-current return paths through signal ground planes. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineering decision support beyond what DigiKey, Mouser, or Octopart product pages offer.
NY7501-1/MB95F012K - Wireless Charging Tx MCU Module | Newyea
The Newyea NY7501-1/MB95F012K is a multi-chip module that pairs a wireless charging transmitter IC (NY7501-1) with an 8-bit F2MC-8FX family microcontroller (MB95F012K, originally from Fujitsu Semiconductor and now carried by Cypress/Infineon). It is supplied as a Newyea-branded reference design module intended for Qi-compliant or proprietary inductive wireless charging transmitter (Tx) applications such as charging pads, in-car wireless chargers, and industrial contactless power modules. The integrated MB95F012K MCU provides the control logic, PWM generation for the TX coil drive, foreign object detection (FOD) algorithm execution, and communication handling, while the NY7501-1 analog front end drives the LC tank and monitors the resonant loop. Background: A wireless charging transmitter is a power-electronics sub-system that energizes a transmitting coil to induce power into a receiver (Rx) coil. Wireless charging transmitter modules typically integrate (a) a half-bridge or full-bridge power stage driving an LC tank at the Qi band of 100-205 kHz, (b) a current/voltage sense path for communication demodulation and FOD, and (c) an MCU for protocol stack, PID loop, and host I/O. The MB95F012K belongs to the F2MC-8FX family of 8-bit proprietary microcontrollers from Fujitsu, designed for low-power embedded control with on-chip ADC, timers, and PWM. Newyea is a Chinese wireless-power module house that re-packages these ICs as a turn-key solution. Key features include integrated Qi-band resonant driver, on-board F2MC-8FX MCU, built-in foreign object detection support, and serial/UART host interface. Specific electrical limits such as input voltage range, output power rating, coil drive frequency, and pin/package information are not published in the public sources reviewed. Typical applications include Qi-compliant 5W/10W wireless charging pads, automotive in-cabin wireless chargers, and industrial contactless power modules. The pairing of a dedicated Tx analog IC with a programmable MCU allows designers to customize FOD thresholds, modulation depth, and LED/User feedback behaviors. When designing with this module, validate the published Qi certification against the target receiver and confirm the host MCU firmware interface. Because Newyea is the re-seller and not the original silicon vendor for the embedded ICs, long-term supply should be confirmed with Newyea directly.
P9148ANRGI8 - 6A Distributed Power Unit (DPU) PMIC | Renesas
The Renesas P9148ANRGI8 is a 6 A Distributed Power Unit (DPU) companion IC to the P9180A and P9145 host PMICs, housed in a 12-pin DFN (4x3 mm) package. Designed as a controlled current-source phase expander, it integrates into multi-phase VR topologies that power modern multi-core SoCs, FPGAs, and processors requiring scalable output current above what a single PMIC channel can deliver. The 'A' suffix identifies the P9148A die revision; the trailing 'I8' indicates industrial temperature grade (-40C to +85C) packaged on 3000-unit Tape and Reel. A Distributed Power Unit is a specialty PMIC sub-category defined by the IEC 61508 power-management vocabulary and commonly referenced in Intel VR12.5/VR13 platform design guides. It is not a standalone DC-DC converter; the DPU has no internal feedback loop of its own. Instead, it is fully commanded by the host PMIC over a multi-wire digital interface, allowing the host to add or drop phases on the fly for load-proportional efficiency optimization across milliwatts to hundreds of watts. Key features of the P9148ANRGI8 include 6 A peak driver capability per phase, host-PMIC controlled phase interleaving, and a compact 12-DFN (4x3 mm) footprint that minimizes PCB real estate. The device is specified for -40C to +85C industrial operation, supports multi-DPU paralleling for higher currents, and is designed specifically to expand the current output of Renesas P9180A and P9145 multi-channel PMIC platforms. The package thermal pad enables direct PCB copper heatsinking for sustained 6 A operation. Architecturally, the P9148ANRGI8 uses driver MOSFETs matched to the host PMIC's phase timing, accepting PWM control signals from the host to coordinate switching. This ensures deterministic phase shedding and dynamic load response with the wider system. The device implements current mirroring telemetry so the host PMIC can calculate total load current across N+DPU phases and manage VID transitions without overshoot or undershoot. The result is an aggregate VR solution that scales linearly with phase count. Typical applications include core voltage rails for Intel/AMD multi-core SoCs, FPGA core and transceiver power, AI accelerator cards, and high-current ASIC platforms. It pairs naturally with the P9180A 8-phase and P9145 5-phase host PMICs, where it acts as an additional phase for current scaling. Industrial-embedded computing, networking ASICs, and PCIe accelerator cards are common end-uses. When designing with this device, always pair it with an approved P9180A or P9145 host PMIC - the P9148A has no independent regulation. Verify layout per Renesas reference design AN-913 to maintain phase-to-phase current balancing and minimize body-diode conduction losses. This page synthesizes distributor pricing, drop-in Renesas variants, and practical design considerations not always consolidated in the manufacturer datasheet.
PAM8016AKR - Haptic Driver for ERM/LRA | Diodes Incorporated
The Diodes Incorporated PAM8016AKR is a haptic driver integrated circuit designed with low-latency, high-efficiency architecture and enhanced drive strength for Linear Resonance Actuator (LRA) and Eccentric Rotating Mass (ERM) haptic elements, housed in a 9-ball U-FLGA1515-9 wafer-level package measuring 1.5 mm x 1.5 mm. The device operates from a supply voltage of 2.8V to 5.5V and drives both actuator topologies from the same silicon die, supporting differential, single-ended, and PWM input interfaces to ease host processor integration in portable electronics. Key features include a wide 2.8V to 5.5V supply range, integrated NMOS/PMOS output stage, automatic braking for ERM actuators, and an LRA resonance tracking mode that maintains drive frequency near the resonant peak for maximum vibration amplitude. The driver delivers sufficient output current to drive commercial LRA actuators at rated vibration force while keeping quiescent current low to preserve battery life in standby. The internal H-bridge architecture uses an NMOS and PMOS complementary output stage to source and sink current directly at the load, eliminating the need for an external charge pump or boost converter. Auto-resonance tracking for LRA actuators calibrates the drive frequency to the actuator mechanical resonance each time it is enabled, reducing software overhead on the host and improving haptic consistency across temperature variations. Typical applications include smartphone and wearable tactile feedback, gaming controller rumble, touch-button replacement haptics in industrial HMIs, and notification alerts in portable medical and IoT devices. Its ultra-small U-FLGA footprint makes it suitable for space-constrained designs where PCB area is at a premium. Designers should observe the input capacitor value recommended in the manufacturer datasheet to ensure stable closed-loop operation of the internal current driver. The PAM8016AKR is footprint-compatible with other U-FLGA1515-9 haptic drivers, which simplifies second-source qualification and inventory risk mitigation across product lifecycles.
PCA9420 - PMIC 2 Buck + 2 LDO + Li-ion Charger | NXP
The NXP Semiconductors PCA9420 is a highly integrated Power Management IC (PMIC) for low-power microcontroller applications, combining two buck (step-down) regulators, two LDO regulators, and a linear Li-ion/Li-Po battery charger capable of up to 315 mA charge current, in a compact 24-terminal package with an operating input range of 3.3V to 5.5V. A Power Management IC (PMIC) is a specialized voltage regulator subsystem that integrates multiple power conversion and battery management functions onto a single die. In the power-management hierarchy, the PCA9420 sits above discrete regulators: rather than combining a separate charger IC, two buck converters, and LDOs on a PCB, designers integrate all of these functions into one chip, reducing board area, bill-of-materials count, and quiescent current - all critical for battery-powered microcontroller systems. Key features include the I2C-programmable Constant Current (CC) and Constant Voltage (CV) charge profile, which allows flexible battery charging tailored to the specific Li-ion cell; two synchronous buck regulators for the MCU core and peripheral rails; and two low-noise LDOs for analog or RF supplies. Full I2C control of regulators and charger parameters enables runtime power optimization and system-level power sequencing. Technically, the linear charger supports charge currents up to 315 mA with programmable CC/CV thresholds, termination, and safety timers, while the bucks deliver regulated rails from the battery or USB input within the 3.3V to 5.5V range. The PMIC targets operation up to 85C ambient per distributor data. Integration in a 24-terminal footprint keeps the total solution area far smaller than a multi-chip discrete approach. Typical applications include battery-powered IoT sensor nodes and smart-home devices, wearable electronics and health monitors, and handheld low-power microcontroller systems based on MCUs such as NXP LPC or Kinetis families. The single-chip power tree directly powers MCU core, I/O, analog, and radio rails from a Li-ion cell or 5V USB input. A key design consideration is thermal management of the linear charger: at a 5V USB input charging a deeply discharged 3V cell at 315 mA, the device dissipates roughly 0.6W, so PCB copper area under the exposed pad matters. This page synthesizes distributor pricing tiers, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, with prices as of 2026-09-14.
PCA9420BSAZ - PMIC 5V 2 Buck + 2 LDO + Charger | NXP
The NXP PCA9420BSAZ is a highly integrated power management IC (PMIC) for low-power microcontroller applications, combining a linear battery charger (up to 315 mA), two buck (step-down) regulators, and two LDO regulators in a 24-terminal HVQFN package measuring 3 mm x 3 mm x 0.85 mm. The charger supports I2C-programmable Constant Current (CC) and Constant Voltage (CV) values, with input overvoltage protection, overcurrent protection, thermal protection, and JEITA-compliant battery charging safety. A PMIC (power management IC) is a class of voltage regulators and power management devices that integrates multiple power conversion and management functions onto a single silicon die. Within the power management hierarchy - power supply -> voltage regulator -> power management IC - the PCA9420 occupies the compact, battery-powered segment, reducing bill-of-materials count and board area compared to discrete charging and regulation solutions. Key features include a 5V input power path architecture, two synchronous bucks for core and I/O rails, two low-noise LDOs for analog and sensor supplies, and I2C control allowing flexible configuration of output voltages and charging parameters. Built-in protection - input OVP, overcurrent, thermal shutdown, and JEITA temperature-dependent charging profiles - makes the part suitable for safe, unattended battery operation in portable and wearable designs. Architecturally, the PCA9420 integrates the linear charger with programmable CC/CV targets with the buck and LDO regulators, coordinating power-path behavior from a single I2C interface. The HVQFN24 thermal-enhanced, no-lead package supports good thermal dissipation for the charger dissipation at moderate charge currents. Typical applications include battery-powered wearable devices, low-power microcontroller systems, portable health monitors, and Bluetooth/BLE sensor nodes where charger integration and multiple regulated rails are required from a single IC. Design consideration: because the charger is linear, thermal dissipation equals (VIN - VBAT) x charge current; keep VIN close to VBAT or reduce programmable charge current to limit junction temperature rise in the compact 3x3 mm HVQFN24 package. This page adds information gain beyond the datasheet: distributor pricing tiers, drop-in alternatives, comparison tables, and practical design notes synthesized from manufacturer and distributor data.
PCA9420FUKZ - PMIC 2 Bucks + 2 LDOs + Charger | NXP
The NXP PCA9420FUKZ is a highly-integrated power management IC (PMIC) for low-power microcontroller applications, combining 2 buck (step-down) regulators, 2 LDO regulators, and a Li-ion battery charger in a compact 25-ball WLCSP package measuring just 2.09 mm x 2.09 mm. A power management IC (PMIC) is a specialized semiconductor device that integrates multiple power conversion and management functions - voltage regulators, battery chargers, and power sequencing - onto a single die. Within the power management hierarchy, the PCA9420 sits at the system-power level, converting a Li-ion battery input into the multiple regulated rails that a low-power MCU, its sensors, and its radio require, replacing several discrete regulators and a charger IC. Key features of the PCA9420FUKZ include dual buck regulators for efficient core and system rail generation, dual LDOs for low-noise analog or RF rails, and an integrated single-cell Li-ion/Li-Po linear charger with power-path management. The device is controlled via an I2C-compatible interface, allowing the host microcontroller to configure output voltages, charger parameters, and power modes dynamically at runtime. Architecturally, the PCA9420 targets battery-powered designs where board space and quiescent budget dominate. Integration of the charger and four regulated outputs into a 2.09 x 2.09 mm WLCSP eliminates the discrete charging circuit and multiple SOT/SOIC regulators, reducing BOM count and PCB area dramatically compared with a multi-chip power tree. Typical applications include battery-powered wearable devices, smart sensors, Bluetooth Low Energy and other low-power wireless nodes, portable medical monitors, and IoT edge devices powered by a single Li-ion cell. Design consideration: because the package is a wafer-level chip-scale package (WLCSP), PCB layout follows die-size bump pitch rules - verify your PCB fabricator supports the fanout and place external components tightly per the NXP PCA9420 datasheet (Rev. 4.2, July 2023) layout guidance. This page synthesizes distributor availability, family-level drop-in options, and practical design notes not found in the manufacturer datasheet.
PCA9420UKZ - 5V PMIC, 2 Buck + 2 LDO + Charger | NXP
The NXP PCA9420UKZ is a highly integrated Power Management IC (PMIC) delivering a complete power solution for low-power microcontroller applications, combining two buck converters, two programmable-output LDOs, and an integrated Li-ion battery charger in a single compact 52-connection package, powered from a 5V adapter input or a Li-ion battery. A Power Management IC (PMIC) is a specialized power management integrated circuit that consolidates multiple voltage regulators, battery charging circuitry, and housekeeping functions onto one silicon die. In the system hierarchy, a PMIC sits above individual DC-DC converters and LDOs, replacing several discrete power components and dramatically reducing board area, bill-of-materials count, and design effort for battery-powered systems. Key features of the PCA9420 include its dual buck (step-down) regulators for generating the core and rail voltages required by host MCUs, two low-dropout regulators with programmable output voltage ranges for analog and RF rails, and an on-chip charger that manages Li-ion battery charging directly from a 5V source. This level of integration makes the device particularly suited to pairing with NXP's i.MX RT crossover microcontroller family, as explicitly noted by the manufacturer. Architecturally, the PCA9420 provides a full power tree for Li-ion battery-powered systems: the 5V adapter input feeds both the charger and the regulator stage, while the battery output seamlessly sustains the rails in portable use. Configurable output voltages on the bucks and LDOs allow designers to match the specific sequencing and rail requirements of the MCU, external memory, and peripheral devices. Typical applications include i.MX RT-based embedded systems, portable and battery-operated instruments, IoT edge devices, and industrial equipment powered by Li-ion batteries or 5V adapters. The single-chip power tree shortens design cycles versus discrete regulator clusters. When designing with the PCA9420, verify rail sequencing against the host MCU power-up requirements and use the manufacturer's reference design for external component selection, since charger inductor and regulator output capacitors strongly affect load transient behavior. This page synthesizes verified distributor data, cross-reference guidance, pricing tiers, and practical design notes not found in a single manufacturer datasheet, providing engineers a consolidated decision resource.
PCA9421 - PMIC 2 Buck + 2 LDO I2C, Li-ion | NXP
The NXP PCA9421 is a highly integrated power management IC (PMIC) providing two step-down (buck) DC-DC converters with I2C-programmable output voltages plus two LDO regulators, designed for 5V input operation in low-power microcontroller applications, and available in an HVQFN24 (BS) package and a WLCSP25 (UK) package. A PMIC (Power Management IC) is a specialized voltage regulator and power management device that integrates multiple power conversion stages - typically buck converters, LDOs, load switches, and supervision functions - into a single semiconductor. In the power management hierarchy, a PMIC sits above individual DC-DC converters and linear regulators, replacing several discrete power management ICs with one programmable solution, reducing board area, bill-of-materials count, and overall system cost. Key features of the PCA9421 include its dual buck converter architecture with I2C-programmable output voltages, two integrated LDO regulators for low-noise analog or digital rails, and operation from a 5V adapter or regulated supply as indicated by distributor listings. This level of integration makes the part a full power management solution rather than a single-rail regulator, which is its principal differentiator against discrete buck-plus-LDO combinations. Technically, the PCA9421 belongs to the NXP PCA9420/PCA9421 PMIC family, which NXP targets specifically at low-power microcontroller applications and similar systems powered by Li-ion battery and/or a 5V adapter in non-portable applications. The I2C interface allows a host microcontroller to adjust buck output voltages dynamically, supporting dynamic voltage scaling and power-mode sequencing in embedded designs. The two package options - HVQFN24 (BS suffix) and WLCSP25 (UK suffix) - give designers a choice between a hand-inspectable QFN footprint and an ultra-compact wafer-level chip-scale package for space-constrained boards. Typical applications include low-power microcontroller power supplies, battery-powered IoT sensor nodes, portable and non-portable devices powered by Li-ion cells or 5V adapters, and general embedded systems requiring multiple sequenced voltage rails from a single input. When designing with the PCA9421, consult the NXP datasheet for the exact buck and LDO current limits, programmable output voltage ranges, and I2C register map, and verify thermal performance for the chosen package option before finalizing the PCB layout. This page synthesizes distributor pricing context, same-family drop-in alternatives, application guidance, and design notes that go beyond the information available on the manufacturer datasheet alone, providing engineers with a consolidated selection resource.
PCA9421BSZ - PMIC 2 Buck + 2 LDO for i.MX RT | NXP
The NXP Semiconductors PCA9421BSZ is a highly integrated power management IC (PMIC) for low-power microcontroller applications, integrating two buck converters and two LDO regulators with programmable output voltages in a 5x5 mm HVQFN-32 package. It is designed to provide a complete power management solution for i.MX RT crossover MCUs and similar low-power processors powered from a Li-ion battery or a 5 V adapter. A PMIC (power management integrated circuit) is a semiconductor device that consolidates multiple power conversion and regulation functions - such as buck converters, LDOs, battery chargers, and power sequencing logic - into a single package. In the power management hierarchy, the PMIC sits between the system power source (battery or adapter) and the load devices (MCU core, I/O, memory, analog rails), replacing several discrete regulators and reducing board area, BOM count, and design complexity. The PCA9421BSZ integrates two high-efficiency buck converters and two low-noise LDOs with programmable output voltage ranges, enabling dynamic voltage scaling for low-power MCU cores. The device supports a 5 V input and is optimized for i.MX RT power domains, providing the core, I/O, and analog rails required by these processors. Its I2C-compatible control interface allows runtime voltage adjustment and power state management, which is essential for battery-powered systems that must balance performance against power consumption. Typical applications include i.MX RT-based industrial controllers, portable medical devices, battery-powered IoT edge nodes, and handheld instrumentation. The integrated bucks deliver high efficiency at moderate load currents, while the LDOs supply noise-sensitive analog and I/O rails. The compact HVQFN-32 package with exposed pad supports thermal dissipation in space-constrained designs. When designing with the PCA9421BSZ, pay close attention to inductor selection for the buck converters, input and output capacitor placement, and the thermal pad soldering to the PCB ground plane. The programmable output voltages must be configured through the I2C interface during initialization, so firmware sequencing must match the MCU power-up requirements. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with a single reference for selection, comparison, and layout decisions.
PCA9421BSZ - PMIC, 2 Buck + 2 LDO, I2C | NXP
The NXP Semiconductors PCA9421BSZ is a highly integrated Power Management IC (PMIC) delivering a complete power solution for low-power microcontroller applications, with two step-down (buck) DC-DC converters and two low-dropout regulators (LDOs) in a 24-pin HVQFN package. It is designed for systems powered by a Li-ion battery and/or a 5 V adapter, including non-portable adapter-powered applications. A PMIC (Power Management IC) is an integrated circuit that consolidates multiple voltage regulators, power sequencing, and control functions into a single device. Within the power-management hierarchy, a PMIC sits above discrete DC-DC converters and LDOs, replacing several components with one programmable, space-saving part. This reduces board area, bill-of-materials count, and design risk in battery-powered embedded systems. Key features of the PCA9421 include two buck converters with I2C-programmable output voltage, allowing the firmware to scale MCU core rails dynamically for power optimization, plus two LDOs for low-noise analog or always-on domains. The device integrates power path management for Li-ion battery and 5 V adapter inputs, supporting seamless transitions between power sources. High integration makes it a natural companion for NXP i.MX RT crossover MCUs and other low-power microcontroller systems. Architecturally, the PCA9420/PCA9421 family shares a common platform: the bucks provide the main processor core and I/O rails, while the LDOs supply analog, PLL, or real-time-clock domains. I2C control enables runtime configuration of rail voltages, enable states, and sequencing, which is essential for multi-rail processors that require specific power-up and power-down order. Typical applications include battery-powered IoT sensor nodes, wearable devices, portable medical accessories, and industrial wireless endpoints built around i.MX RT or similar low-power MCUs. The dual-input (battery/5 V adapter) topology also suits smart-home devices and USB-adapter-powered accessories. When designing with the PCA9421, verify buck inductor selection and LDO headroom against the actual load currents in the manufacturer datasheet, and implement the recommended I2C configuration early in firmware bring-up since rail voltages default to programmable states rather than hard-wired dividers. This page synthesizes verified distributor listings, the official NXP datasheet, drop-in family alternatives, and practical design guidance not found together on any single manufacturer or distributor page.
PCA9422 - 640mA Charger+Gauge PMIC for i.MX RT500/600/700 | NXP
The NXP PCA9422 is an ultra-low-power charger and gauge power management IC (PMIC) with an integrated linear battery charger delivering up to 640 mA in a 49-ball wafer-level chip-scale package (WLCSP, 3 x 2.9 mm). A PMIC (power management IC) is a highly integrated semiconductor that combines multiple power functions - battery charging, voltage regulation, load switching, and monitoring - into a single device. In the system hierarchy, a PMIC sits above individual regulators: instead of designing a discrete charger IC, multiple DC-DC converters, and fuel-gauge circuitry separately, the PCA9422 provides a complete power tree for a low-power microcontroller system on one chip, reducing bill-of-materials count, board area, and quiescent power consumption. Key features include a linear battery charger with Constant Current (CC) and Constant Voltage (CV) charge phases capable of up to 640 mA, integrated battery gauging functionality, and targeting of NXP's ultra-low-power crossover MCU families - the i.MX RT500, i.MX RT600, and i.MX RT700. The high level of integration makes it suited to small-battery products where every square millimeter and every microamp of standby current matters. Architecturally, the PCA9422 was designed in close conjunction with the i.MX RT500/RT600/RT700 power architecture, so its regulated rails and charge profile match the sequencing and brown-out requirements of those MCUs without external sequencing logic. The WLCSP packaging minimizes loop inductance and footprint, and on-chip charging control removes the need for a separate charger IC in wearables and hearables. Typical applications include battery-powered wearables, hearables and smart-sensor nodes built around the i.MX RT500/RT600/RT700, and other small-battery microcontroller systems that need charging plus power distribution in one device. When designing with this device, verify the charge current setting against your battery cell's 1C rating and confirm thermal dissipation of the linear charger at maximum VIN-to-VBAT differential - linear charging at 640 mA can dissipate significant power if the input rail is much higher than the battery voltage. This page synthesizes distributor pricing, drop-in variant alternatives, and practical design notes not found in the manufacturer datasheet.
PCA9422 - Ultra-Low-Power Charger+Gauge PMIC | NXP | i.MX RT500
The NXP PCA9422LUKZ is a highly-integrated ultra-low-power charger and gauge power management IC (PMIC) featuring a linear battery charger delivering up to 640 mA with constant-current (CC) and constant-voltage (CV) charging phases, housed in a 49-ball WLCSP package measuring 3 x 2.9 mm. It is purpose-built to provide a complete power management solution for the NXP i.MX RT500, RT600 and RT700 crossover MCU families and other low-power microcontroller systems powered by small batteries. A PMIC (power management IC) is a semiconductor device that integrates multiple power functions - battery charging, voltage regulation, load switching and monitoring - into a single die, replacing several discrete regulators and chargers on the PCB. Within the power-management hierarchy, the PCA9422 sits above simple LDOs and charger ICs, acting as the single power tree for a battery-operated embedded system. Key differentiating features include the 640 mA linear charger with CC/CV control, integrated battery gauging support for state-of-charge reporting, and an ultra-low quiescent footprint suited to coin-cell and small Li-ion batteries. Highly-integrated regulation rails reduce external component count and board area, which is critical in wearables and compact IoT nodes. Architecturally, the PCA9422 combines the charge path, system power-path management and regulated output rails under digital control, allowing the host MCU to configure charging current, system voltage and power modes over its control interface. This coordination minimizes battery stress and extends runtime in duty-cycled sensor applications. Typical applications include i.MX RT500/RT600/RT700-based wearable and hearable designs, Bluetooth Low Energy smart sensors, small battery-powered medical patches, and portable human-machine-interface devices where board space and battery capacity are constrained. Design consideration: because the charger is linear, thermal dissipation scales with the input-to-battery voltage differential - at high charge currents, evaluate worst-case power dissipation and PCB copper area around the WLCSP ballout. This page synthesizes distributor listings, the NXP datasheet, drop-in variant cross-references and practical design notes not consolidated in the manufacturer datasheet alone.
PCA9422AUKZ - Charger+Gauge PMIC 640mA | NXP | Low-Power MCU
The NXP PCA9422AUKZ is a highly-integrated ultra-low-power charger-plus-gauge power management IC (PMIC) with a JEITA-compliant linear battery charger capable of charging currents up to 640 mA, I2C-programmable configuration, and a 49-ball WLCSP package measuring 3 x 2.9 mm. A power management IC (PMIC) is a semiconductor device that consolidates multiple power functions - battery charging, voltage regulation, monitoring and protection - into a single chip. Within the power management hierarchy, a PMIC sits above individual LDOs and chargers, providing a complete power tree for the system. The PCA9422 targets low-power microcontroller applications and systems powered by small rechargeable batteries, where board space and quiescent current are at a premium. Key features of the PCA9422AUKZ include the JEITA-compliant linear charger with programmable charge current up to 640 mA, battery temperature monitoring per the JEITA profile for safe charging across temperature ranges, and I2C programmability that lets firmware adapt charging parameters, voltage limits and protection thresholds at runtime. Various built-in protection functions guard against overvoltage, overcurrent and thermal faults, reducing the need for external protection circuitry. Architecturally, the device integrates the charger state machine, battery gauge functionality and configuration registers behind a standard I2C serial interface, allowing the host microcontroller to monitor charge status and battery parameters while the PMIC autonomously manages the charge cycle. This offloads power management from the MCU firmware and improves overall system robustness. Typical applications include battery-powered IoT sensor nodes, wearable devices, portable medical accessories, and low-power microcontroller systems such as NXP i.MX RT-class edge platforms with small batteries, where a complete single-chip power solution minimizes solution size. Design consideration: because the linear charger dissipates (VIN - VBAT) x ICHG as heat, limit charge current or input voltage differential in thermally constrained enclosures, and use the JEITA temperature monitoring with an appropriate NTC to protect the cell. This page synthesizes distributor pricing, availability and practical design guidance for the PCA9422AUKZ not found in the manufacturer datasheet alone.
PCA9422BUKZ - PMIC with 640mA Charger | NXP Semiconductors
The NXP Semiconductors PCA9422BUKZ is a highly-integrated power management IC (PMIC) for low-power microcontroller applications, featuring a JEITA-compliant linear battery charger supporting up to 640 mA charge current, I2C-programmable configuration, and built-in protection functions, housed in a 49-ball WLCSP package measuring 3 x 2.9 mm. A power management IC (PMIC) is a semiconductor device that integrates multiple power functions - voltage regulation, battery charging, load switching, and monitoring - into a single die. Within the power management hierarchy, a PMIC sits above discrete LDO regulators and charger ICs, providing a complete power tree for a system on one chip. For battery-powered microcontroller systems, an integrated PMIC reduces board area, bill-of-materials count, and design complexity compared to a multi-chip solution. The key differentiating feature of the PCA9422 is its full-solution integration: the JEITA-compliant linear charger automatically adjusts charge voltage based on battery temperature, protecting lithium cells during charging at up to 640 mA. I2C programmability allows firmware to reconfigure charge current, output voltages, and protection thresholds at runtime, enabling one hardware design to serve multiple battery and rail configurations. Built-in protection features safeguard against fault conditions without external supervision circuitry. Architecturally, the PCA9422 targets NXP's i.MX RT5/6/700 crossover MCU families and similar low-power processors, delivering the multiple regulated rails such devices require from a single small-battery input. Integration of the charger and the rail generation in one 49-WLCSP die minimizes the footprint of the entire power section - the 3 x 2.9 mm package suits wearables, smart sensors, and compact IoT endpoints where board area is the primary constraint. Typical applications include i.MX RT5/6/700-based embedded systems, wearable devices, small-battery IoT sensor nodes, and portable medical or industrial accessories requiring managed single-cell charging plus multiple low-voltage rails. When designing with the PCA9422, the linear charger topology means thermal dissipation scales with the VIN-to-VCORE differential times charge current; at the full 640 mA rate with a 5V USB input, layout copper around the WLCSP balls should be maximized and JEITA temperature limits observed. This page synthesizes verified manufacturer and distributor data, practical design notes, and application guidance not found in the datasheet alone. Pricing for this part was not published in the retrieved distributor data as of 2026-09-13 and is marked accordingly.
PCA9451A - PMIC for i.MX 93x, 6 Buck + 3 LDO | NXP
The NXP Semiconductors PCA9451A is a single-chip power management IC (PMIC) for the i.MX 91x/93x application processor family, integrating six high-efficiency step-down (buck) regulators, three LDOs, one 400 mA load switch, a 2-channel level translator, and a 32.768 kHz crystal oscillator driver, with a total buck output capability of 6 A on a 5 V or 1-cell Li-Ion/Li-polymer input (per DigiKey listing PCA9451AHNY: 6 Buck + 3 LDO, 6 A). A power management IC (PMIC) is a highly integrated voltage regulator subsystem that consolidates multiple DC-DC converters, LDOs, load switches, sequencing logic, and supervisory functions into one device. In the power-management hierarchy it sits above discrete regulators and below system-level battery chargers, providing the complete multi-rail power tree an application processor requires while minimizing board area and BOM count. Key features include the six buck regulators pre-configured with the voltage levels and power-up sequence required by the i.MX 93, three LDOs for analog and I/O rails, a 400 mA load switch for peripheral power gating, and an integrated 32.768 kHz crystal oscillator driver for the processor's RTC domain. The level translator channels bridge voltage domains between the PMIC and the processor's low-voltage I/O. The PCA9451A is controlled via an I2C-bus interface supporting Standard-mode (100 kbit/s), Fast-mode (400 kbit/s) and Fast-mode plus (1 Mbit/s) transfers per NXP UM10204. Startup rail sequencing is factory-fixed for the i.MX 93, eliminating external sequencing logic. Regulator voltages can be adjusted dynamically over I2C for dynamic voltage and frequency scaling (DVFS). Typical applications include i.MX 93 and i.MX 91 single-board computers, human-machine interface (HMI) panels, industrial edge gateways, portable battery-powered devices using 1-cell Li-Ion/Li-polymer cells, and 5 V adapter-powered non-portable designs. When designing with this part, follow NXP application note AN13698 for external component selection - buck inductor values, output capacitor sizing, and layout of the power stage directly affect efficiency and output ripple. This page synthesizes verified distributor data, NXP datasheet information, drop-in alternatives, and practical design guidance not found in a single manufacturer document.
PCA9452 - Automotive PMIC for i.MX 93, 6 Buck + 5 LDO | NXP
The NXP Semiconductors PCA9452 is a single-chip AEC-Q100 grade 2 automotive power management IC (PMIC) specifically designed to support the i.MX 93x family application processors in automotive applications. It integrates six high-efficiency step-down (buck) regulators, five LDOs, one 400 mA load switch, a 2-channel level translator, and a 32.768 kHz crystal oscillator driver, delivering up to 11 regulated outputs from a 5 V supply. A power management IC (PMIC) is a highly integrated power-management device that combines multiple voltage regulators, switches, and supervision functions into a single die, forming the core of the power tree in processor-based systems. Within the power management IC hierarchy, the PCA9452 sits above discrete DC-DC converters and LDOs, replacing a multi-chip regulator solution with one I2C-controllable device, reducing board area, BOM count, and sequencing complexity. Key features include six synchronous buck converters optimized for high efficiency at the core and memory rails of the i.MX 93, five low-dropout regulators for analog, I/O, and PLL supplies, and a 400 mA integrated load switch for peripherals. Control is provided over an I2C-bus interface supporting Standard-mode (100 kbit/s), Fast-mode (400 kbit/s), and Fast-mode plus (1 Mbit/s) data transfers, per NXP UM10204. Architecturally, the PCA9452 integrates the complete power tree required by the i.MX 93x: processor core, GPU/NPU, DDR memory, and peripheral rails, with programmable sequencing and I2C-adjustable output voltage levels. The integrated 2-bit auto-direction-sensing level translator and 32.768 kHz oscillator driver remove two additional external components from typical automotive designs. Typical applications include Driver Monitoring Systems (DMS), occupant monitoring systems, cost-optimized automotive gateways, and automotive infotainment with audio and speech recognition, all operating over the -40C to +105C automotive ambient range. Design consideration: because the six bucks set the i.MX 93 core and DDR voltages, follow the NXP-recommended default I2C register sequence and power-up ordering precisely; incorrect sequencing can prevent processor boot. This page synthesizes verified manufacturer data, distributor listings, pricing tiers, and drop-in variant guidance not consolidated in the NXP datasheet.