Power Management ICs

The ADR280 is a 1.2V ultralow power band gap voltage reference with high PSRR (-80dB) and excellent line regulation (2ppm/V). Ideal for battery-powered devices and GSM/GPRS/3G mobile stations. Features 16μA max supply current, 40ppm/°C temp coefficient, and compact SOT-23/SC70 packages.

High frequency upgrade to MC34063A. Features 40V input, 1.5A output switch, adjustable voltage, 150kHz operation, thermal shutdown, and cycle-by-cycle current limiting. Ideal for step-down, step-up, inverting supplies, LED lighting, and battery chargers.

The MCP100T-450I/TT is a reliable supervisory circuit with push-pull output, ensuring precise voltage monitoring for microcontrollers. Features low power consumption, high accuracy, and industrial temperature range. Ideal for embedded systems requiring reset control.

Precision supervisory circuit monitors 2.5V to 5V supplies. Features 140ms min reset pulse, 12µA supply current, and transient immunity. Available in push-pull or open-drain outputs. No external components needed. Ideal for digital systems.

High-efficiency buck regulator with 3.0A output, adjustable voltage from 1.23V to 37V, and wide 40V input range. Features thermal shutdown, current limit, and low standby power. Ideal for battery chargers and on-card regulators.

LM723CN monolithic programmable voltage regulator. Input up to 40V, adjustable output 2-37V, 150mA output current. Features internal current limiting, supports external pass transistor for higher current. Ideal for series, shunt, or switching applications.

Precision 2.5V band-gap voltage reference diode with 20 µA to 20 mA operating range. Features low dynamic impedance, excellent temperature stability, and low noise. Ideal for portable meters, regulators, and analog circuits. Available in TO-92, SO, and SOT-23 packages.

Precision 5.0V shunt regulator diode with low 0.6Ω dynamic impedance and wide operating current from 600µA to 10mA. Features adjustable voltage 4V to 6V, low temperature coefficient, and fast turn-on. Ideal for digital voltmeters, power supplies, and op amp circuits. Available in TO-92 package.

High efficiency synchronous step-down controller with automatic Burst Mode for low power loss. Supports input up to 48V (60V abs max) and switching up to 250kHz. Current-mode architecture ensures fast transient response. Ideal for wide input range industrial power supplies.

The LTC4357 is a positive high voltage ideal diode controller that replaces a Schottky diode with an N-channel MOSFET to reduce power dissipation and heat. Features 0.5μs turn-off, 9V to 80V range, and smooth switchover. Ideal for N+1 redundant supplies, telecom, and automotive systems.

Precision microprocessor power supply supervisor with manual reset. Monitors +5.0V, +3.3V, +3.0V, +2.5V supplies. Active LOW reset, 6µA current, industrial temp -40°C to +85°C. SOT-143 package. Direct replacement for MAX811/MAX812.

BTS452RATMA1 is a smart high-side power switch with overload, short circuit, and overvoltage protection. Ideal for 12V, 24V, and 42V DC applications, it replaces relays with CMOS-compatible input and diagnostic feedback. Offers reverse battery protection and low standby current.

High-side MOSFET switch with 140mOhm max on-resistance per channel, 500mA continuous current, and short-circuit protection. Features thermal shutdown, reverse current blocking, and soft-start. Ideal for USB peripherals and general power distribution. UL recognized.

High-efficiency LDO regulator with 750mA output, low dropout voltage (40mV typical), and low quiescent current (160µA). Features reverse battery protection, 60V load dump protection, and thermal limiting. Ideal for automotive and battery-powered applications.

High efficiency step-down regulator delivering up to 1A with 96% efficiency. Features 260kHz fixed frequency, wide 8V-40V input, and ±1.5% output tolerance. Requires only 5 external components. Available in SO-8, DIP, and LLP packages. Ideal for compact power designs.

Ultra-low quiescent current of 1.5µA and high output current up to 250mA. Features 650mV dropout voltage, ±1.5% output accuracy, and integrated short-circuit protection. Ideal for battery-powered portable devices. Available in fixed 3.3V output in compact SOT23 package.

8-channel source driver with over-current protection per output, 350mA continuous source current, and 35V sustaining voltage. Features thermal shutdown, internal clamp diodes, and fault output. Ideal for relays, motors, LEDs, and solenoids in automotive and industrial applications.

The VND600SP is a dual high-side solid state relay with 30mOhm RDS(on) and 25A current limit. Features include short circuit protection, thermal shutdown, and proportional load current sense. Ideal for resistive and inductive loads. STMicroelectronics VIPower technology ensures reliability.

Ultra low dropout voltage regulator delivering 1.5A output with 0.06% load regulation. Features 10nA shutdown current, overtemp/overcurrent protection, and −40°C to +125°C range. Available in TO-263, TO-220, and SOT-223 packages. Ideal for microprocessor supplies, bus terminators, and battery chargers.

Integrated 80V 0.7A N-Channel buck switch with internal HV Vcc regulator. No control loop compensation needed, ultra-fast transient response, and adjustable output voltage for highly efficient operation.