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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...

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

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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


High Power Density Solutions for AI & Server
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How to Properly Place Input and Output Capacitors in Your Power Supply Layout
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Advantages of Using the MAX77816 Buck-Boost Regulator for Seamless Power Supply Transitions
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How to Design a Power Supply in Five Minutes or Less with the EE-Sim® Design Tool
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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

MAX20057 36V Boost Controller with Two Synchronous Buck Converters (3.5A/2A) 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

MAX8969 Step-Up Converter for Handheld Applications

The MAX8969 is a simple 1A step-up converter in a small package that operates in any single-cell...
  • Flexible System Integration
    • Up to 1A Output Current
    • 2.5V to 5.5V Input Voltage Range
    • 3.3V to 5.7V Output Voltage Options
  • Integrated Protection Increases System Robustness
    • Undervoltage Lockout (UVLO)
    • Short-Circuit Protection
    • Overtemperature Shutdown
  • High Efficiency and Low Quiescent Current Extends Battery Life
    • Over 90% Efficiency with Internal Synchronous Rectifier
    • 60µA IQ in Automatic Track Mode
    • 45µA IQ in Step-Up Mode
    • 30µA IQ in Track Mode
    • 1µA Shutdown Current
    • Skip Mode Under Light Load Condition Improves Efficiency
    • True Shutdown™ Prevents Current Flow from OUT_ to LX_
    • Soft-Start Limits Inrush Current to 480mA
  • Small Package and High Frequency Operation Reduce Board Space
    • 9-Bump 1.25mm × 1.25mm WLP Package
    • 3MHz PWM Switching Frequency
    • Small External Components

MAX17227J 400mV to 5.5V Input, 500mA nanoPower Boost Converter with Short-Circuit Protection and Automatic Pass-Through Mode

The MAX17227J is a nanoPower boost converter capable of delivering a load up to 500mA peak induc...
  • 350nA Quiescent Supply Current
  • Output Short-Circuit Protection
  • Automatic Pass-Through Mode
    • Overcurrent and Overtemperature Protected
  • 95% Peak Efficiency, 89% or Higher at 500μA
  • Typical 300mA Output Current at 5.0V (VIN > 3.6V)
  • 400mV to 5.5V Input Voltage Range
  • 880mV Minimum Startup Voltage
  • Single Resistor-Adjustable Output Voltage
    • 2.3V to 5.2V Output Voltage Range with 100mV Steps
    • 5.4V Output Voltage Setting Available
  • 500mA Peak Inductor Current Limit
  • Active Discharge Feature
  • Thermal Shutdown Protection
  • Multiple Package Options:
    • 1.58mm x 0.89mm, 0.4mm Pitch, 6-Bump (3 x 2) WLP
    • 2mm x 2mm, 8-Pin TDFN
  • -40°C to +125°C Operating Temperature Range

MAX17580 4.5V to 60V, 300mA High-Efficiency, Synchronous, Inverting Output DC-DC Converters

The Himalaya series of voltage regulator ICs, power modules, and chargers enable cooler, smaller...
  • Reduces External Components and Total Cost
    • Synchronous Operation
    • All-Ceramic Capacitors, Compact Layout
    • Internal Loop Compensation
    • System Ground Referenced I/O Pins (EN/UVLO,  active-low RESET
  • Flexibility to Support Multiple Rails in a System
    • Adjustable Output Voltage Range from -0.9V to -36V
    • Wide 4.5V to (60V-|VOUT|) Input-Voltage Range
    • Up to 300mA Output Current
    • 400kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
  • Reduces Power Dissipation
    • 88.4% Peak Efficiency
    • DCM for Superior Light-Load Efficiency
    • 6.2μA Shutdown Current
  • Operates Reliably in Adverse Industrial Environments
    • Hiccup-Mode Overload Protection
    • Adjustable Soft-Start 
    • Monotonic Startup with Prebiased Output Voltage
    • Built-in Output Voltage Monitoring with Active-Low RESET
    • Programmable EN/UVLO Threshold
    • Overtemperature Protection
    • Wide -40°C to +125°C Ambient Operating Temperature Range / -40°C to +150°C Junction Temperature Range

MAX17579 4.5V to 60V, 300mA High-Efficiency, Synchronous, Inverting Output DC-DC Converters

The Himalaya series of voltage regulator ICs, power modules, and chargers enable cooler, smaller...
  • Reduces External Components and Total Cost
    • Synchronous Operation
    • All-Ceramic Capacitors, Compact Layout
    • Internal Loop Compensation
    • System Ground Referenced I/O Pins (EN/UVLO,  active-low RESET
  • Flexibility to Support Multiple Rails in a System
    • Adjustable Output Voltage Range from -0.9V to -36V
    • Wide 4.5V to (60V-|VOUT|) Input-Voltage Range
    • Up to 300mA Output Current
    • 400kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
  • Reduces Power Dissipation
    • 88.4% Peak Efficiency
    • DCM for Superior Light-Load Efficiency
    • 6.2μA Shutdown Current
  • Operates Reliably in Adverse Industrial Environments
    • Hiccup-Mode Overload Protection
    • Adjustable Soft-Start 
    • Monotonic Startup with Prebiased Output Voltage
    • Built-in Output Voltage Monitoring with Active-Low RESET
    • Programmable EN/UVLO Threshold
    • Overtemperature Protection
    • Wide -40°C to +125°C Ambient Operating Temperature Range / -40°C to +150°C Junction Temperature Range

MAX25232 36V, 3A Mini Buck Converter with 3.5uA IQ

The MAX25232 is a small, synchronous buck converter with integrated high-side and low-side switc...
  • Synchronous DC-DC Converter with Integrated FETs
    • MAX25232ATCA/VY+/B = 2.5A IOUT
    • MAX25232ATCD/VY+/E = 3A IOUT
    • 3.5µA Quiescent Current when in Standby Mode
  • Small Solution Size Saves Space
    • 65ns Minimum On-Time
    • 2.1MHz or 400kHz Operating Frequency
    • Fixed 5V/3.3V Output Voltages with ±2% Output Accuracy in FPWM Mode (5V/3.3V)
    • Other Fixed VOUT Options Between 3V - 5.5V (in 50mV steps) Available for Precise Output Voltage Setting
    • External Resistor Divider Options to Adjust the Output Voltage Between 3V and 10V
    • Fixed 3.5ms Internal Soft-Start
    • Innovative Current-Mode-Control Architecture Minimizes Total Board Space and BOM Count
  • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing
  • Protection Features and Operating Range Ideal for Automotive Applications
    • 3.5V to 36V Operating VIN Range
    • 40V Load-Dump Protection
    • 99% Duty-Cycle Operation with Low Dropout
    • -40°C to +125°C Automotive Temperature Range
    • AEC-Q100 Qualified

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

MAX20790 Smart Power-Stage IC with Integrated Current and Temperature Sensors

The MAX20790 is a feature-rich smart power-stage IC designed to work with Maxim’s controllers to...
  • Space-Optimized Solution
    • Monolithic, Smart Power Stage
    • Phase-Current Steering for Thermal Balance
    • Small Footprint: ~24mm2
  • 95.6% Peak Efficiency
    • 6-phase, 400kHz, 12V VIN, 1.8V VOUT
  • 300kHz to 1.3MHz Switching Frequency
  • Telemetry and Fault Reporting through Controller IC PMBus
    • Accurate Temperature Monitoring and Reporting
    • Accurate Per-Phase Current Reporting
    • Fault_ID Indicates Type of Fault
  • Advanced Self-Protection Features
    • Supply and Boost UVLO Protection
    • Boost Refresh
    • VX Short and Overtemperature Shutdown
    • Fast Overcurrent Protection

MAX20411 Automotive High-Efficiency Single 16A/22A/ 30A/40A Step-Down Converter Family

The MAX20411 is a family of high-efficiency, synchronous step-down converters that operate with ...
  • High-Efficiency DC-DC Converter
  • Up to 40A Peak Output Current:
    • MAX20411A: 16A
    • MAX20411B: 22A
    • MAX20411C: 30A
    • MAX20411D: 40A
  • Differential Remote Voltage Sensing
  • 3.0V to 5.5V Operating Supply Voltage
  • I²C Controlled Output Voltage:
    • 0.5V to 1.275V in 6.25mV Steps
  • Excellent Load Transient Performance
  • Advanced Programmable Compensation
    • MAXQ™ Power Architecture
    • Hybrid Load Line and Integrator Options
  • 2.1MHz or 1.05MHz Operation
  • As Low as ±0.75% Output Voltage Accuracy
  • RESET-bar Output
  • Current Mode, Forced PWM Operation
  • ASIL D Compliant:
    • Redundant Reference
    • BIST Diagnostics
    • PEC on I²C
    • Programmable OV/UV with ±1% Accuracy
  • Overtemperature and Short-Circuit Protection
  • 3.5mm x 5mm 21-Pin Side-Wettable FC2QFN
  • -40°C to +125°C Grade 1 Automotive Temperature Range

MAX17703 4.5V to 60V, Synchronous Step-Down Li-Ion Battery Charger Controller

The Himalaya series of voltage regulator ICs, power modules, and chargers enable cooler, smaller...
  • Optimized Feature-Set for Li-Ion Batteries Including Li-Polymer, LiFePO4 and Li-Titanate
    • ±4% Charging Current Regulation Accuracy
    • ±6% Charging Current Monitor Accuracy (ISMON) ,
    • ±1% Voltage Regulation Accuracy
    • Programmable Constant Current (CC) Mode Charging Current (ILIM)
    • Charge Termination on Full Battery Detection with Taper Current Threshold and Taper Timer
    • Wide 4.5V to 60V Input-Voltage Range
    • Adjustable Output-Voltage Range from 1.25V up to (VDCIN - 2.1V)
    • 125kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization (RT/SYNC)
  • Reliable Operation in Adverse Environmental Conditions
    • Input Short-Circuit Protection (GATEN)
    • Safety Timer Feature (TMR)
    • Deeply Discharged Battery Detection and Preconditioning (DDTH)
    • Battery Temperature Sensing and Charge when Within Temperature of Range (TEMP)
    • Cycle-by-Cycle Overcurrent Limit
    • Programmable EN/UVLO Threshold
    • Status Output Monitoring Using Open-Drain Outputs (FLG1 and FLG2)
    • Overtemperature Protection
    • Complies with CISPR 32 (EN55032) Class B Conducted and Radiated Emissions
    • Wide -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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MAXM17532EVKIT

Integrated power solution providing 5V from a wide input range of 10V to 42V with up to 100mA of...
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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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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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MAXREFDES121

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

Latest Reference Designs

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...