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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
6:18 June 03, 2021


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
05:59 February 22, 2019


How to Design a Power Supply in Five Minutes or Less with the EE-Sim® Design Tool
6:28 May 26, 2018


nanoPower Boost Converter Demo
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EE-Sim Webscope Waveform Viewer
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Customer Testimonials

Featured Blogs

Featured Products

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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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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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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

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

MAX77597 36V, 300mA, Buck Converter with 1.1μA IQ

The MAX77597 is a small, synchronous buck converter with integrated switches. The device is desi...
  • Flexible Power for Systems That Require a Wide Input Voltage Range
    • VIN Range: 3.5V to 36V
    • Up to 300mA Output Current
    • Fixed 3.3V Output Voltage
    • 98% (Max) Duty Cycle Operation with Low Dropout
    • Operates from 5V, 12V, or 20V USB Type-C Input Power
    • Operates from 2S, 3S, or 4S Li-Ion Battery
  • Minimizes Power Consumption and Extends Battery Life
    • 1.1µA Quiescent Current
    • 86% Peak Efficiency at 12VIN, 3.3VOUT
  • Minimizes Solution Size
    • 1.7MHz Operating Frequency
    • Small 2.0mm x 2.5mm x 0.75mm 10-Pin TDFN Package
  • Robust Solution
    • Short-Circuit, Thermal Protections
    • 6.67ms Internal Soft-Start Minimizes Inrush Current
    • Current-Mode Control Architecture
    • Up to 42V Input Voltage Tolerance

MAX20405 Automotive, 36V, 4A/5A/6A Fully Integrated Synchronous Buck Converter

The MAX20404/MAX20405/MAX20406 ICs are tiny synchronous buck converters with integrated high-sid...
  • Multiple Functions for Small Size
    • Operating VIN Range of 3V to 36V
    • 10µA Quiescent Current in Skip Mode
    • Synchronous DC-DC Converter with Integrated FETs
    • 400kHz, 2.1MHz, and 3MHz Fixed Frequency Options
    • Fixed 2.5ms Internal Soft-Start
    • Programmable 0.8V to 10V Output, or 3.3V and 5.0V Fixed-Output Options Available
    • 3.5mm x 3.75mm 17-Pin FC2QFN
    • Symmetrical package offers superior EMI performance
  • Dual-Phase Capablity
    • Can be used in Dual-Phase Configuration for High Power Design
    • Dynamic Current Sharing
    • Low Iq Operation Capability in Dual Phase
  • High Precision
    • ±1% Output-Voltage Accuracy in FPWM Mode at No Load
    • Precise Output Voltage Monitoring with PGOOD
  • Robust for the Automotive Environment
    • Forced-PWM and Skip Mode Operation
    • 99% Duty-Cycle Operation with Low Dropout
    • Overtemperature and Short-Circuit Protection
    • -40°C to +125°C Junction Operating Temperature Range
    • 42V Load-Dump Tolerant
    • AEC-Q100 Qualified

MAX20410 Automotive 36V, 8A/10A Fully-Integrated Buck Converter with 10μA Quiescent Current and Dual-Phase Capability

The MAX20408/MAX20410 ICs are tiny synchronous buck converters with integrated high-side and low...
  • High-Power DC/DC Converter in Small Solution Size
    • 3.0V to 36V Operating Input Voltage Range
    • Integrated High-Side and Low-Side FETs
    • 8A/10A Maximum Output Current
    • 400kHz and 2.1MHz Fixed Frequency Options
    • Fixed 2.5ms Soft-Start Time
    • 34ns Minimum On Time
    • Programmable 0.8V to 10V Output with 400kHz,0.8V to 6V Output with 2.1MHz, or Fixed Output Options
    • ±1.8% Output Voltage Accuracy
    • Symmetric and Balanced SUP and PGND Pinout Placement for Superior EMI Performance
    • Thermally-Enhanced 3.5mm x 3.75mm, 17-Pin FC2QFN Package
  • High Efficiency at All Load Range
    • 10μA Quiescent Current in Skip Mode
    • Up to 94.3% Efficiency at 12VIN/5VOUT/2.1MHz
    • Up to 95.6% Efficiency at 12VIN/5VOUT/400kHz
  • Dual-Phase Operation up to 20A Load Capability
    • Frequency Synchronization Input/Output
    • 180º Out-of-Phase Between Master and Slave
    • Dynamic Current Sharing
  • Robust for Automotive Environment
    • Forced PWM and Skip-Mode Operation
    • 99% Duty Cycle Operation with Low DropoutVoltage
    • Supports 42V Load Dump
    • Spread-Spectrum Option
    • Power Good Indicator
    • Overtemperature and Short-Circuit Protection
    • -40°C to +125°C Automotive Temperature Range
    • AEC-Q100 Qualified
  • Scalable Power Solution
    • Footprint Compatible with MAX20404/MAX20405/MAX20406

MAX20406 Automotive, 36V, 4A/5A/6A Fully Integrated Synchronous Buck Converter

The MAX20404/MAX20405/MAX20406 ICs are tiny synchronous buck converters with integrated high-sid...
  • Multiple Functions for Small Size
    • Operating VIN Range of 3V to 36V
    • 10µA Quiescent Current in Skip Mode
    • Synchronous DC-DC Converter with Integrated FETs
    • 400kHz, 2.1MHz, and 3MHz Fixed Frequency Options
    • Fixed 2.5ms Internal Soft-Start
    • Programmable 0.8V to 10V Output, or 3.3V and 5.0V Fixed-Output Options Available
    • 3.5mm x 3.75mm 17-Pin FC2QFN
    • Symmetrical package offers superior EMI performance
  • Dual-Phase Capablity
    • Can be used in Dual-Phase Configuration for High Power Design
    • Dynamic Current Sharing
    • Low Iq Operation Capability in Dual Phase
  • High Precision
    • ±1% Output-Voltage Accuracy in FPWM Mode at No Load
    • Precise Output Voltage Monitoring with PGOOD
  • Robust for the Automotive Environment
    • Forced-PWM and Skip Mode Operation
    • 99% Duty-Cycle Operation with Low Dropout
    • Overtemperature and Short-Circuit Protection
    • -40°C to +125°C Junction Operating Temperature Range
    • 42V Load-Dump Tolerant
    • AEC-Q100 Qualified

MAX20404 Automotive, 36V, 4A/5A/6A Fully Integrated Synchronous Buck Converter

The MAX20404/MAX20405/MAX20406 ICs are tiny synchronous buck converters with integrated high-sid...
  • Multiple Functions for Small Size
    • Operating VIN Range of 3V to 36V
    • 10µA Quiescent Current in Skip Mode
    • Synchronous DC-DC Converter with Integrated FETs
    • 400kHz, 2.1MHz, and 3MHz Fixed Frequency Options
    • Fixed 2.5ms Internal Soft-Start
    • Programmable 0.8V to 10V Output, or 3.3V and 5.0V Fixed-Output Options Available
    • 3.5mm x 3.75mm 17-Pin FC2QFN
    • Symmetrical package offers superior EMI performance
  • Dual-Phase Capablity
    • Can be used in Dual-Phase Configuration for High Power Design
    • Dynamic Current Sharing
    • Low Iq Operation Capability in Dual Phase
  • High Precision
    • ±1% Output-Voltage Accuracy in FPWM Mode at No Load
    • Precise Output Voltage Monitoring with PGOOD
  • Robust for the Automotive Environment
    • Forced-PWM and Skip Mode Operation
    • 99% Duty-Cycle Operation with Low Dropout
    • Overtemperature and Short-Circuit Protection
    • -40°C to +125°C Junction Operating Temperature Range
    • 42V Load-Dump Tolerant
    • AEC-Q100 Qualified

MAX20499C Automotive Single 16A/12A Step-Down Converter

The MAX20499C/MAX20499D is a high-efficiency, synchronous step-down converter that operates with...
  • High-Efficiency DC-DC Converter
  • Up to 16A Peak Output Current
    • MAX20499C: 16A
    • MAX20499D: 12A
  • 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
  • Programmable Compensation
  • 2.2MHz or 1.1MHz Operation
  • ±1.5% Output Voltage Accuracy
  • Active-low RESET Output
  • Current Mode, Forced-PWM Operation
  • Overtemperature and Short-Circuit Protection
  • 3.5mm x 4mm 17-Pin Side-Wettable FC2QFN
  • -40°C to +125°C Grade 1 Automotive Temperature Range
  • 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

    MAX20011D Automotive Single 16A/12A Step-Down Converter

    The MAX20011C/MAX20011D is a high-efficiency, synchronous step-down converter that operates with...
      • High-Efficiency DC-DC Converter
      • Up to 16A Peak Output Current
        • MAX20011C: 16A
        • MAX20011D: 12A
      • 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
      • Programmable Compensation
      • 2.2MHz or 1.1MHz Operation
      • ±1.5% Output Voltage Accuracy
      • RESET 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 4mm 17-Pin Side-Wettable FC2QFN
      • -40°C to +125°C Grade 1 Automotive Temperature Range

    MAX20011C Automotive Single 16A/12A Step-Down Converter

    The MAX20011C/MAX20011D is a high-efficiency, synchronous step-down converter that operates with...
      • High-Efficiency DC-DC Converter
      • Up to 16A Peak Output Current
        • MAX20011C: 16A
        • MAX20011D: 12A
      • 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
      • Programmable Compensation
      • 2.2MHz or 1.1MHz Operation
      • ±1.5% Output Voltage Accuracy
      • RESET 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 4mm 17-Pin Side-Wettable FC2QFN
      • -40°C to +125°C Grade 1 Automotive Temperature Range

    Tools

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

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

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

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

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

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    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...

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

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

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    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.

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

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

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