Switching Regulators

Our high-efficiency DC-DC switching regulator ICs generate less heat, consume less current and require less board space than other solutions, enabling more robust operation and longer battery life. Switching regulator circuits use a power switch, an inductor, and a diode to transfer energy from input to output. The basic components of the switching circuit can be rearranged to form a step-down (buck) converter, a step-up (boost) converter, or an inverter (flyback). Feedback and control circuitry can be added to regulate the energy transfer and maintain a constant output. Our wide selection of DC-DC converters offer high switching frequencies, very efficient internal switching elements, wide input voltage ranges, and built-in circuit protection to support a broad range of applications.

Switching Regulator Development Boards

Evaluation Kit for 4.5V to 42V, 300mA uSLIC Power Module for 3.3V Output


Integrated power solution providing 3.3V from a wide input range of 4.5V to 42V with up to 300mA of current.

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4V to 42V, 100mA, Compact Step-Down Power Module


The MAXM17532 is a step-down DC-DC power module built in a compact uSLICTM package. The MAXM17532 integrates a controller, MOSFETs, an inductor, as well as the compensation components. The device operates from an input voltage of 4.0V to 42V, supports an adjustable output voltage from 0.9V to 5.5V, and supplies up to 100mA of load current. The high level of integration significantly reduces design complexity, manufacturing risks and offers a true “plug and play” power supply solution, hence reducing the time-to-market.

Evaluation Kit for 4V to 42V, 100mA uSLIC Power Module for 5V Output


Integrated power solution providing 5V from a wide input range of 10V to 42V with up to 100mA of current.

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Cryptographic Controller for Embedded Devices Development Platform

MAXQ1061 Evaluation Kit - Evaluates: MAXQ1061

Credit card-sized socketed board allows for communication and power through a 10-pin connector to an optional host adapter.

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Isolated 24V to 3.3V 33W Power Supply


Isolated, industrial power-supply reference design with an efficient active-clamp topology design with 24V input.

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Non-isolated 24V to 5.1V, 20W Power Supply


High-efficiency, 20W power supply for industrial and broad power-supply applications.

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Non-isolated 12V/1A PoE Powered Device Power Supply


This non-isolated PoE powered device design combines a PD controller and buck converter on a 1.2 in2 board. It accepts 36V to 57V input with 12V output up to 1A.

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Switching Regulator Design Resources

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Application Notes

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Switching Regulator Products

300mA, Buck Converter with 1.1μA IQ


This small, synchronous buck converter with integrated switches can deliver up to 300mA with input voltages from 3.5V to 24V, while using only 1.1μA quiescent current at no load.

2.75V to 4.8V Input, 10mA Output, 35μVRMS Ultra Low Noise and Ripple Boost Regulator


Compact boost with only 35µVRMS ripple and noise.

3.5V – 36V, 2A/3A, Synchronous Buck Converter with 15μA Quiescent Current and Reduced EMI


Reliable Operation (42V Input Transient Protection), Long Battery Life (15µA IQ) and EN55022 EMI Performance.