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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.

Step-Down (Buck)

Find Maxim’s Step-Down (Buck) Switching Regulators. Optimize your applications with Maxim Integr...

Step-Up (Boost)

Switching regulators/step up converters convert input voltages into higher output voltages.

Step-Up or Step-Down (Buck-Boost)

Find Maxim's Buck Boost Converters and Switching Regulators that are ideal for use in your porta...

Inverting

Switching regulators ICs convert input voltages into higher output voltages.

Digital Power

Maxim Integrated digital power products are highly efficient DC-regulators that provide extensiv...

Power Modules

Maxim Integrated's Himalaya Power Modules integrate most of the components needed for a power su...

Featured Technical Documents

Design Solution Mobile Power Selector Guide

Browse latest application notes by product family:

Technical Documents Boost/Step-Up

Technical Documents Buck-Boost/Step-Down

Technical Documents Buck/Step-Down

Technical Documents Inverter/Negative Output

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Featured Videos


Advantages of Using the MAX77816 Buck-Boost Regulator for Seamless Power Supply Transitions
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nanoPower Boost Converter Demo
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Featured Blogs

Featured Products

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MAX77801

The MAX77801 is a high-current, high-efficiency buck-boost targeted to mobile applications that use a Li-ion battery or similar chemistries. The MAX77...
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MAX77596

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 q...
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MAX77231

Compact boost with only 35µVRMS ripple and noise.
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MAX17242

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

Latest Products

MAX25206 Versatile Automotive 60V/70V 2.2MHz Buck Controller with 7µA IQ and Optional Bypass Mode

The MAX25206/MAX25207/MAX25208 are automotive 2.2MHz synchronous step-down controller IC with 7µ...
  • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • 7µA Quiescent Current in Skip Mode at VOUT = 3.3V
    • ±1.5% Output-Voltage Accuracy: 5.0V/3.3V Fixed, or Adjustable Between 1V and 10V
  • Enables Crank-Ready Designs
    • Wide Input Supply Range from 3.5V to 42V
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range
    • 50ns (typ) Minimum On-Time Guarantees Skip-Free Operation for 3.3V Output from Car Battery at 2.2MHz
    • Spread-Spectrum Option
    • Frequency-Synchronization Input
    • Resistor-Programmable Frequency Between 220kHz and 2.2MHz
  • Integration and Thermally Enhanced Packages Save Board Space and Cost
    • 2.2MHz Step-Down Controller
    • 180° Out-of-Phase SYNCOUT Output for Synchronization
    • Current-Mode Controller with Forced-Continuous and Skip Modes
    • Thermally Enhanced 20-Pin Side-Wettable (SW) TQFN-EP Package
  • Protection Features Improve System Reliability
    • Supply Undervoltage Lockout
    • Overtemperature and Short-Circuit Protection
    • Output Overvoltage and Undervoltage Monitoring
    • -40°C to +125°C Grade 1 Automotive Temperature Range

MAX17643 4.5V–60V, 2A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation

The Himalaya series of voltage regulator ICs, power modules, and chargers enable cooler, smaller...
  • Reduces External Components and Total Cost
    • No Schottky-Synchronous Operation
    • Internal Compensation for Any Output Voltage
    • All-Ceramic Capacitors, Compact Layout
  • Reduces Number of DC-DC Regulators to Stock
    • Wide 4.5V to 60V Input
    • Adjustable 0.9V to (0.9 × VIN) Output
    • Up to 2A Peak-Load Current
    • 400kHz to 2.2MHz Adjustable Switching Frequency with External Synchronization
  • Reduces Power Dissipation
    • Peak Efficiency of 91.6%
    • Auxiliary Bootstrap LDO for Improved Efficiency
    • 4.65μA Shutdown Current
  • Operates Reliably in Adverse Industrial Environments
    • Hiccup-Mode Overload Protection
    • Adjustable Soft-Start
    • Built-In Output-Voltage Monitoring with Active-Low RESET
    • Programmable EN/UVLO Threshold
    • Monotonic Startup into Prebiased Load
    • Overtemperature Protection
    • Wide Industrial -40°C to +125°C Ambient Operating Temperature Range/ -40°C to +150°C Junction Temperature Range
    • Complies with CISPR22 (EN55022) Class B Conducted and Radiated Emissions

MAX38650 Tiny 1.8V to 5.5V Input, 390nA IQ, 100mA nanoPower Buck Converter with 100% Duty Cycle Operation

The MAX38650 is a nanoPower, ultra-low 390nA quiescent current, buck (step-down) DC-DC converter...
  • Extends Battery Life
    • 390nA Ultra-Low Quiescent Supply Current
    • 5nA Shutdown Current
    • 95% Peak Efficiency and over 85% at 10μA
  • Easy to Use—Addresses Popular Operation
    • 1.8V to 5.5V Input Range
    • Single Resistor-Adjustable VOUT from 1.2V to 3.3V (MAX38650A)
    • Preprogrammed VOUT from 1.2V to 5V (MAX38650B) in steps of 50mV
    • 100% Duty Cycle Mode for Low Dropout Operation
    • ±1.5% Output Voltage Accuracy
    • 100mA Load Current
  • Protects System in Multiple Use Cases
    • Reverse-Current Blocking in Shutdown
    • Active Discharge Feature
  • Reduces Size and Increases Reliability
    • -40°C to +125°C Operating Temperature Range
    • 1.58mm x 0.89mm, 0.4mm Pitch, 6-Pin (2 x 3) WLP
MAX20010E Automotive Single 6A Step-Down Converters

MAX20010E Automotive Single 6A Step-Down Converters

The MAX20010C/MAX20010D/MAX20010E ICs are high-efficiency, synchronous step-down converters that...
  • Fully Integrated, Synchronous 6A DC-DC Converter Enables Small Solution Size
    • 3.0V to 5.5V Operating Supply Voltage
  • High-Precision Voltage Regulator for Applications Processors
    • ±2% Output-Voltage Accuracy
    • Differential Remote Voltage Sensing
    • I2C-Controlled Output Voltage of 0.5V to 1.27V in 10mV Steps, or 0.625V to 1.5875V in 12.5mV Steps
    • Excellent Load-Transient Performance
  • Low-Noise Feature Reduces EMI
    • 2.2MHz Operation
    • Spread-Spectrum Option
    • Frequency-Synchronization Input/Output
    • Current-Mode, Forced-PWM, and Skip Operation
  • Robust for the Automotive Environment
    • PGOOD Output
    • Overtemperature and Short-Circuit Protection
    • 20-Pin (4mm × 4mm) TQFN with an Exposed Pad
    • -40°C to +125°C Operating Temperature Range
    • AEC-Q100 Qualified

MAX20057 36V Boost Controller with Dual 3.5A/2A Synchronous Buck Converters for Automotive Applications

The MAX20057 is an automotive highly integrated triple-output PMIC. It includes two synchronous ...
  • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • 10µA Supply Current with 5V Buck On
    • 8µA Supply Current with 3.3V Buck On
    • 30µA Supply Current with All Regulators On
  • Enables Crank-Ready Designs
    • Output Voltages in Regulation Through Cold CrankDown to 2V Battery Voltage
    • Wide Input-Supply Range from 3.5V to 36V
    • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input-Voltage Range
    • 20ns (typ) Minimum On-Time Guarantees Skip-Free Operation for 3.3V Output at 2.1MHz
    • Spread-Spectrum Option
    • Phase-Locked Loop (PLL) Frequency Synchronization
  • Integration and Thermally Enhanced Packages Save Board Space and Cost
    • Two 2.1MHz Buck Converters with Asynchronous Boost Controller
    • Current-Mode Controller with Forced Fixed-Frequency and Skip Modes
    • Thermally Enhanced 5mm x 5mm, 28-Pin TQFN-EP Package
  • Protection Features Improve System Reliability
    • Supply Undervoltage Lockout
    • Overtemperature and Short-Circuit Protection

MAX17291 High-Voltage, 1A Micropower Boost Converter with Short-Circuit Protection and True Shutdown

The MAX17291 is a low quiescent current boost (step-up) DC-DC converter with a 1A peak inductor ...
  • 28μA Quiescent Supply Current from Input
  • Output Short-Circuit Protection
  • Overtemperature Protection
  • Constant Frequency in CCM
  • True Shutdown Mode
    • 0.05μA Shutdown Current
    • No Reverse Current from OUT
  • 91% Peak Efficiency
  • 1.8V to 5.5V Input Range
  • 5.5V to 20V Output Voltage Range
  • 1A Peak Inductor Current Limit
  • Multiple Package Options
    • 1.27mm x 0.87mm, 6-Bump (3 x 2), 0.4mm Pitch WLP
    • 2mm x 2mm, 8-Pin TDFN
  • -40°C to +125°C Operating Temperature Range

MAX20458 36V Boost Controller with 3.5A Synchronous Buck Converter For Automotive Applications

The MAX20458 is an automotive grade PMIC that includes a 3.5A synchronous buck converter and an ...
  • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • 10μA Supply Current with 5V Buck On
    • OUT Can Be Either 5V or 3.3V
    • 30µA Supply Current with All Regulators On
  • Enables Crank-Ready Designs
    • Output Voltages in Regulation Through Cold Crank Down to 2V Battery Voltage
    • Wide Input Supply Range from 3.5V to 36V
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range
    • 20ns (typ) Minimum On-Time Guarantees Skip-Free Operation for 3.3V Output at 2.1MHz
    • Spread-Spectrum Option
    • Phase-Locked Loop (PLL) Frequency Synchronization
  • Integration and Thermally Enhanced Packages Save Board Space and Cost
    • 2.1MHz Buck Converters with Asynchronous Boost Controller
    • Current-Mode Controller with Forced Fixed Frequency and Skip Modes
    • Thermally Enhanced 5mm x 5mm, 28-Pin TQFN-EP Package
  • Protection Features Improve System Reliability
    • Supply Undervoltage Lockout
    • Overtemperature and Short-Circuit Protection

MAX77839 5.5V Input, 4.4A/3.6A Switching Current 6μA IQ Buck-Boost Converter

The MAX77839 is a highly-efficient buck-boost regulator with an industry leading quiescent curre...
  • Flexible System Integration
    • 1.8V to 5.5V Input Voltage Range
    • 2.3V to 5.3V Single Resistor Adjustable Output
    • 3.6A ILIM ("C" and "D" options) or 4.4A ILIM ("A" and "B" options)
    • 3A Maximum Output Current (4.4A ILIM, Buck Mode)
    • 3A Maximum Output Current (4.4A ILIM, Boost Mode 3.0VIN, 3.3VOUT)
    • 96% Peak Efficiency (VIN = 3.6V, VOUT = 3.3V)
    • Optional GPIO Pin (FPWM input, Active-Low POK output)
  • Low Supply Current that Extends Battery Life
    • Skip Mode that Reduces Supply Current at Light Loads
    • 6μA Ultra-Low IQ
  • 2.2MHz (typ) Switching Frequency
  • Integrated Protections that Provide System Robustness
    • Undervoltage Lockout (UVLO)
    • Overvoltage Protection (OVP)
    • Cycle-by-Cycle Inductor Peak Current Limit
    • Thermal Shutdown (TSHDN)
  • Active Output Discharge
  • Small Solution Size
    • 2.07mm x 1.51mm, 0.4mm Pitch, 15-Bump WLP
    • 2.5mm x 2.0mm, 0.5mm Pitch, 11-Pin FC2QFN

MAX16602 VR13.HC and AI Cores Dual-Output Voltage Regulator Chipset

The MAX16602 IC provides a high-density, flexible and scalable solution to power AI cores or Int...
  • High Power Density and Efficiency
    • Smart Power-Stage Support: MAX20778/A, MAX20779/A/B/C, MAX20780, MAX20790, MAX16604
    • Top-Tier Efficiency (95.6% Peak Efficiency at 1.8VOUT)
    • Integrated Input Power Monitor
  • Telemetry Through PMBus
    • Digitally Programmable Configuration
    • Input Voltage, Current, and Power Monitoring
    • Power-Stage Temperature Monitoring and Reporting
  • Advanced Power Management
    • Autonomous Phase-Shedding
    • Orthogonal Current Rebalance for Phase-Current Balance During Transients
    • Low-Quiescent Current—Improves Light-Load and Standby Efficiency
  • Protection Features
    • Input and Bias Supply Undervoltage Protection
    • Overcurrent Protection
    • Critical Fault-Flag Output Pin

MAX17552B 60V, 100mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter with 22μA No-Load Supply Current

The Himalaya series of voltage regulator ICs, power modules, and chargers enable cooler, smaller...
  • Eliminates External Components and Reduces Total Cost
    • No Schottky—Synchronous Operation for High Efficiency and Reduced Cost
    • Internal Compensation
    • Fixed Internal 5.1ms or Programmable Soft-Start
    • All-Ceramic Capacitors, Ultra-Compact Layout
  • Reduces Number of DC-DC Regulators to Stock
    • Wide 4V to 60V Input Voltage Range
    • Adjustable 0.8V to 0.9 x VIN Output Voltages
    • Delivers Up to 100mA Load Current
    • 100kHz to 2.2MHz Adjustable Switching Frequency Range with External Clock Synchronization
    • Configurable Between PFM and Forced-PWM Modes
  • Reduces Power Dissipation
    • 22µA No Load Supply Current
    • Peak Efficiency > 90%
    • PFM Feature for High Light-Load Efficiency
    • 1.2µA (typ) Shutdown Current
  • Operates Reliably in Adverse Industrial Environments
    • Peak Current-Limit Protection
  • Built-In Output-Voltage Monitoring with Open-Drain Active-Low RESET Pin
    • Programmable EN/UVLO Threshold
    • Monotonic Startup into Prebiased Output
    • Overtemperature Protection
    • High Industrial -40°C to +125°C Ambient Operating Temperature Range / -40°C to +150°C Junction Temperature Range

Tools

Featured Reference Designs

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MAXREFDES108

This non-isolated PoE powered device design combines a PD controller and buck converter on a 1.2...
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MAXREFDES121

Isolated, industrial power-supply reference design with an efficient active-clamp topology desig...
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MAXM17532EVKIT

Integrated power solution providing 5V from a wide input range of 10V to 42V with up to 100mA of...
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MAXM15462EVKIT

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

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MAXREFDES1238: Scalable, Single Input, 6 Output, Power Solution for the Versal ACAP Platform

In this design a single 12V input supplies a circuit which outputs 6 separate rails ranging from...

MAXREFDES175#: Remote Phantom Supply BeagleBone Black Cape

A complete automotive, high-voltage, 8-channels remote supply BeagleBone Black cape reference de...

MAXREFDES1194: Five-Output, No-Opto Flyback DC-DC Converter Using the MAX17690

The MAXREFDES1194 is a no-opto flyback DC-DC power supply that delivers five outputs from a 6V t...

MAXREFDES1200: Two-Layer Board, 3.3V/2.5A, Synchronous Buck DC-DC Converter Using the MAX17244

The MAXREFDES1200 demonstrates how to build a lowcost buck DC-DC converter using the step-down c...

MAXREFDES1131: 0.72V/12A Supply for Xilinx Ultrascale+ FPGAs

The MAXREFDES1131 provides the internal core voltage (VCCINT) for Xilinx Ultrascale+ FPGAs. This...

MAXREFDES32#: 2-Channel Analog Input/Analog Output with Flyback DC-DC

MAXREFDES32# subsystem reference design is a high-speed, high-accuracy, 16-bit, 2-channel simult...

MAXREFDES71#: 2-Channel Analog Input/Analog Output with Transformer Driven Power

MAXREFDES71# subsystem reference design is a high-speed, high-accuracy, 16-bit, 2-channel simult...

Palo Verde (MAXREFDES33#): Step-Down Converter

The Palo Verde (MAXREFDES33#) subsystem design features a highly efficient, synchronous DC-DC co...

Fit 1 Vital Signs Monitoring Shirt

The "Fit" vital signs monitoring shirt allows medical professionals and fitness enthusiasts to e...

Layout Guidelines for the MAX16974/MAX16975/MAX16976 DC-DC Converters

Optimize the layout of the MAX16974/MAX16975/MAX16976 high-performance DC-DC converters, standar...

Supply-Chopped Dimming Control Boosts LED Driver Efficiency and Keeps Inrush Currents to a Minimum

LED driver reference design drives a single LED string with forward voltages up to 60V and allow...

Adding Three Power MOSFETs Lets a Single Step-Down Converter Drive RGB LEDs in Projectors

Reference design (RD) for low-power projector drives RGB high-brightness (HB) LEDs with up to 10...

Reference Design for a High-Input-Voltage, High-Output-Current Buck Controller Using the MAX15046

This reference design presents a circuit for using a step-down power-supply controller for high-...

Designing a Buck-Boost LED Driver Using the MAX16834

The MAX16834 current-mode high-brightness LED driver is featured, and the MAX16834 EV (evaluatio...

Boost Backlight LED Driver

A LED display backlight driver using a boost switching power supply and linear current sinks for...

Reference Design for a Signal-Lamp LED Driver

A linear LED driver for 6 strings of 4 LEDs at a current of 350mA per string. Uses the MAX16836.

Offline LED Driver Reference Design

An 27 LED driver intended to run directly off a 400VDC input.

Reference Design for a 3S3P Rear Combination Lamp (RCL) LED Driver

An LED driver for a Rear Combination Lamp (RCL) using the MAX16823 and external BJTs.

Reference Design for a High-Current Power Supply with Lossless Current Sensing Using the MAX5060

In these days data processing elements are demanding higher currents from power supply for achie...

How to Use the MAX15005 Current-Mode Controller as a Boost Circuit for an Automotive Cold-Crank Condition

Boost application for steping up the battery voltage during cold crank for automotive applicatio...