Power Management ICs

The LM1117DT-3.3 is a low dropout linear regulator delivering 800mA output current with a dropout voltage of 1.2V. Features current limiting, thermal protection, and ±1% output accuracy. Available in SOT-223 package. Ideal for consumer electronics and industrial power management.

The LM431AIM3X is a 3-terminal adjustable shunt regulator with programmable output voltage from 2.5V to 36V. Features low output noise, fast turn-on response, and 50 ppm/°C temperature stability. Ideal replacement for zener diodes in industrial applications.

Precision low dropout voltage reference in tiny SOT23-3 package. Features 0.2% accuracy, 25mA output current, and 50uA max quiescent current. Ideal for portable and battery-powered applications. Stable with any capacitive load.

Fixed-voltage regulator delivering up to 500mA output current with internal short-circuit and thermal protection. Ideal for DSPs, microcontrollers, and industrial equipment. No external components needed. High reliability for on-card regulation.

Low-power 50mA LDO regulator with fixed 3.3V output, 120mV dropout, and thermal protection. Ideal for DSPs, microcontrollers, and portable devices. Operates from -40°C to 125°C in a compact 5-pin SOT-23 package.

Precision 3.3V voltage supervisor IC in SOT-23 package. Features 9µA supply current, 200ms power-on reset delay, and -40°C to 85°C range. Pin-compatible with MAX809. Ideal for DSPs, microcontrollers, and portable equipment.

Precision voltage supervisor for DSPs and microcontrollers. Features 9 µA supply current, 200ms fixed reset delay, and 2% threshold accuracy. Available in ultra-small SC-70 package. Operating temperature -40°C to 85°C. Ideal for portable, industrial, and automotive systems.

High-efficiency 3A step-down voltage regulator with adjustable output from 1.23V to 37V. Requires only 4 external components, features 52 kHz fixed frequency oscillator, TTL shutdown, and low power standby. Ideal for replacing linear regulators with reduced heat sink needs.

CMOS charge-pump voltage converter inverts or doubles 1.5V to 5.5V input. Delivers 200mA output with 86% efficiency, no inductor needed. Features selectable 20kHz/150kHz oscillator. Ideal for battery-powered systems.

High-performance 3-terminal adjustable positive voltage regulator delivering 1.5A output over 1.2V to 37V range. Features 1% voltage tolerance, 80dB ripple rejection, and full overload protection. Ideal for industrial power supplies.

The LD1117S12TR is a low dropout voltage regulator delivering up to 800mA output current with fixed 1.2V output. Features 1V typ. dropout, internal current and thermal limit, and ±1% tolerance. Ideal for SCSI-2 termination. Available in SOT-223 package.

PROFET BTS432E2 smart highside power switch with 38mOhm on-resistance and 44A short-circuit current. Features load dump, reverse battery, overvoltage, and short-circuit protection. Ideal for resistive, inductive, and capacitive loads. Replaces relays. CMOS compatible.

The UC3838ADW integrates a precision 2.5V reference, two high-gain op amps, and a 100mA reset current source with -120V compliance. Ideal for post-regulators in multiple-output power supplies, it enables independent output control with up to 99% efficiency. Available in stock.

High accuracy LDO regulator with ±0.9% tolerance and ultralow 230mV dropout at 1.5A. Stable with any capacitor including MLCC. Features current limit, thermal protection, and 130μA quiescent current. Ideal for battery-powered systems and notebooks.

High accuracy LDO regulator delivering 1A output with ultralow 190mV dropout. Stable with any capacitor including MLCC. Features ±0.8% accuracy, current/thermal limiting, and 2.7V-8V input range. Ideal for battery-powered systems and networking equipment.

Extended power range off-line switcher with no heatsink up to 34 W. Features frequency jittering for reduced EMI, line UV/OV protection, and EcoSmart standby efficiency down to 80 mW. Ideal for cost-sensitive, high-flexibility power supply designs.

High-speed 6A peak MOSFET driver with latch-up protection and 4kV ESD. Features 25ns rise/fall times, rail-to-rail output, and wide 4.5V-18V supply range. Ideal for SMPS, motor controls, and class D amplifiers. Available in 8-Pin PDIP.

The TC4420CPA is a 6A peak high-speed MOSFET driver with latch-up protection and 4kV ESD. Features matched 25ns rise/fall times, wide 4.5V-18V range, and rail-to-rail output. Ideal for switch-mode power supplies and motor controls. Available in DIP-8 package.

The STR-W6754 integrates a 650V avalanche-rated MOSFET with quasi-resonant control for low EMI and high efficiency up to 100W universal input. Features auto-standby under 0.1W, cycle-by-cycle protection, and RoHS compliance. Ideal for AC adapters and power supplies.

The STR-W6753 integrates a 650 V avalanche-rated MOSFET with quasi-resonant control for low EMI and high efficiency. Supports universal input (85-264 VAC) up to 58 W. Features auto-standby, burst mode under 0.1 W, and comprehensive protections. RoHS compliant in a TO-220 isolated package.