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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 Converters
Learn about buck boost converters and step down buck converters, and understand how to different...
Step-Down/Up (Buck-Boost)
Learn about buck boost converters and how they convert input voltages into higher output voltage...
Inverting
Switching regulators ics convert input voltages into higher output voltages.
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


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
5:26 March 10, 2017


EE-Sim Webscope Waveform Viewer
3:03 January 10, 2017

Customer Testimonials

Featured Blogs

Featured Products

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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.
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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...

Latest Products

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MAX20029D Automotive Quad/Triple/Quad Low-Voltage Step-Down DC-DC Converters
The MAX20029/MAX20029B/MAX20029C/MAX20029D power-management ICs (PMICs) integrate four low-volta...
  • Quad Step-Down DC-DC Converters with Integrated FETs
  • Operate from 3.0V to 5.5V Supply Voltage
  • 0.7V to 4.0V Fixed or Adjustable Output Voltage
  • 2.2MHz Switching Frequency
  • MAX20029/MAX20029C: Up to Four 1.5A Channels
  • MAX20029B/MAX20029D: Up to One 3A + Two 1.5A Channels
  • Designed to Improve Automotive EMI Performance
    • Forced-PWM Operation
    • Two Channels 180° Out-of-Phase
    • SYNC Input
    • Spread-Spectrum Option
  • Soft-Start and Supply Sequencing Reduces Inrush Current
  • Individual Enable Inputs and Power-Good Outputs to Simplify Sequencing
  • OV Input-Voltage Monitoring
  • Overtemperature and Short-Circuit Protection
  • 28-Pin (5mm × 5mm x 0.8mm) TQFN-EP Package
  • -40°C to +125°C Operating Temperature Range
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    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
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    MAX20049 Flexible, Compact Quad Power Supply with 2.2MHz, 500mA Buck Converters and Dual LDOs for Automotive Camera Modules
    The MAX20049 is a dual step-down converter IC with two low-dropout regulators (LDOs), providing ...
    • Small Solution Size
      • 16-Pin Side-Wettable (3mm x 3mm) TQFN with an Exposed Pad
      • Low On-Time Architecture Eliminates the Need for Cascading Bucks
      • Wide 3.5V to 17V Input Voltage Range for Power- Over-Coax Cables
      • Fixed Output-Voltage Options
    • EMI Solutions
      • Optional Spread-Spectrum Frequency Modulation
      • Pinout Placement Allows for Tight PCB Layout of Switching Nodes
    • Self-Protected and Robust
      • Overvoltage and Undervoltage Monitoring, Overvoltage Protection, Thermal Shutdown, and Short- Circuit Protection
      • 500mV Input Hysteresis Allows for Long, Low-Cost Cables During Slow Starts
    • Automotive Ready
      • Automotive Temperature Range
      • AEC-Q100 Qualified
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    MAX17220 400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown
    The MAX17220–MAX17225 is a family of ultra-low quiescent current boost (step-up) DC-DC converter...
    • 300nA Quiescent Supply Current Into OUT
    • True Shutdown Mode
      • 0.5nA Shutdown Current
      • Output Disconnects from Input
      • No Reverse Current with VOUT 0V to 5V
    • 95% Peak Efficiency
    • 400mV to 5.5V Input Range
    • 0.88V Minimum Startup Voltage
    • 1.8V to 5V Output Voltage Range
      • 100mV/Step
      • Single 1% Resistor Selectable Output
    • 225mA, 500mA, and 1A Peak Inductor Current Limit
      • MAX17220/MAX17221: 225mA ILIM
      • MAX17222/MAX17223: 500mA ILIM
      • MAX17224/MAX17225: 1A ILIM
    • MAX17220/MAX17222/MAX17224 Enable Transient Protection (ETP)
    • 2mm x 2mm 6-Pin µDFN
    • 0.88mm x 1.4mm 6-Bump WLP (2 x 3, 0.4mm Pitch)
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    MAX17222 400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown
    The MAX17220–MAX17225 is a family of ultra-low quiescent current boost (step-up) DC-DC converter...
    • 300nA Quiescent Supply Current Into OUT
    • True Shutdown Mode
      • 0.5nA Shutdown Current
      • Output Disconnects from Input
      • No Reverse Current with VOUT 0V to 5V
    • 95% Peak Efficiency
    • 400mV to 5.5V Input Range
    • 0.88V Minimum Startup Voltage
    • 1.8V to 5V Output Voltage Range
      • 100mV/Step
      • Single 1% Resistor Selectable Output
    • 225mA, 500mA, and 1A Peak Inductor Current Limit
      • MAX17220/MAX17221: 225mA ILIM
      • MAX17222/MAX17223: 500mA ILIM
      • MAX17224/MAX17225: 1A ILIM
    • MAX17220/MAX17222/MAX17224 Enable Transient Protection (ETP)
    • 2mm x 2mm 6-Pin µDFN
    • 0.88mm x 1.4mm 6-Bump WLP (2 x 3, 0.4mm Pitch)
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    MAX17224 400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown
    The MAX17220–MAX17225 is a family of ultra-low quiescent current boost (step-up) DC-DC converter...
    • 300nA Quiescent Supply Current Into OUT
    • True Shutdown Mode
      • 0.5nA Shutdown Current
      • Output Disconnects from Input
      • No Reverse Current with VOUT 0V to 5V
    • 95% Peak Efficiency
    • 400mV to 5.5V Input Range
    • 0.88V Minimum Startup Voltage
    • 1.8V to 5V Output Voltage Range
      • 100mV/Step
      • Single 1% Resistor Selectable Output
    • 225mA, 500mA, and 1A Peak Inductor Current Limit
      • MAX17220/MAX17221: 225mA ILIM
      • MAX17222/MAX17223: 500mA ILIM
      • MAX17224/MAX17225: 1A ILIM
    • MAX17220/MAX17222/MAX17224 Enable Transient Protection (ETP)
    • 2mm x 2mm 6-Pin µDFN
    • 0.88mm x 1.4mm 6-Bump WLP (2 x 3, 0.4mm Pitch)
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    MAX17225 400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown
    The MAX17220–MAX17225 is a family of ultra-low quiescent current boost (step-up) DC-DC converter...
    • 300nA Quiescent Supply Current Into OUT
    • True Shutdown Mode
      • 0.5nA Shutdown Current
      • Output Disconnects from Input
      • No Reverse Current with VOUT 0V to 5V
    • 95% Peak Efficiency
    • 400mV to 5.5V Input Range
    • 0.88V Minimum Startup Voltage
    • 1.8V to 5V Output Voltage Range
      • 100mV/Step
      • Single 1% Resistor Selectable Output
    • 225mA, 500mA, and 1A Peak Inductor Current Limit
      • MAX17220/MAX17221: 225mA ILIM
      • MAX17222/MAX17223: 500mA ILIM
      • MAX17224/MAX17225: 1A ILIM
    • MAX17220/MAX17222/MAX17224 Enable Transient Protection (ETP)
    • 2mm x 2mm 6-Pin µDFN
    • 0.88mm x 1.4mm 6-Bump WLP (2 x 3, 0.4mm Pitch)
    Product Image
    MAX17223 400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown
    The MAX17220–MAX17225 is a family of ultra-low quiescent current boost (step-up) DC-DC converter...
    • 300nA Quiescent Supply Current Into OUT
    • True Shutdown Mode
      • 0.5nA Shutdown Current
      • Output Disconnects from Input
      • No Reverse Current with VOUT 0V to 5V
    • 95% Peak Efficiency
    • 400mV to 5.5V Input Range
    • 0.88V Minimum Startup Voltage
    • 1.8V to 5V Output Voltage Range
      • 100mV/Step
      • Single 1% Resistor Selectable Output
    • 225mA, 500mA, and 1A Peak Inductor Current Limit
      • MAX17220/MAX17221: 225mA ILIM
      • MAX17222/MAX17223: 500mA ILIM
      • MAX17224/MAX17225: 1A ILIM
    • MAX17220/MAX17222/MAX17224 Enable Transient Protection (ETP)
    • 2mm x 2mm 6-Pin µDFN
    • 0.88mm x 1.4mm 6-Bump WLP (2 x 3, 0.4mm Pitch)
    Product Image
    MAX17221 400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown
    The MAX17220–MAX17225 is a family of ultra-low quiescent current boost (step-up) DC-DC converter...
    • 300nA Quiescent Supply Current Into OUT
    • True Shutdown Mode
      • 0.5nA Shutdown Current
      • Output Disconnects from Input
      • No Reverse Current with VOUT 0V to 5V
    • 95% Peak Efficiency
    • 400mV to 5.5V Input Range
    • 0.88V Minimum Startup Voltage
    • 1.8V to 5V Output Voltage Range
      • 100mV/Step
      • Single 1% Resistor Selectable Output
    • 225mA, 500mA, and 1A Peak Inductor Current Limit
      • MAX17220/MAX17221: 225mA ILIM
      • MAX17222/MAX17223: 500mA ILIM
      • MAX17224/MAX17225: 1A ILIM
    • MAX17220/MAX17222/MAX17224 Enable Transient Protection (ETP)
    • 2mm x 2mm 6-Pin µDFN
    • 0.88mm x 1.4mm 6-Bump WLP (2 x 3, 0.4mm Pitch)
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    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

    Tools

    Featured Reference Designs

    Product Image
    MAXM17532EVKIT
    Integrated power solution providing 5V from a wide input range of 10V to 42V with up to 100mA of...
    Product Image
    MAXM15462EVKIT
    Integrated power solution providing 3.3V from a wide input range of 4.5V to 42V with up to 300mA...
    Product Image
    MAXREFDES108
    This non-isolated PoE powered device design combines a PD controller and buck converter on a 1.2...
    Product Image
    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...
    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...
    MAXREFDES175#: Remote Phantom Supply BeagleBone Black Cape
    A complete automotive, high-voltage, 8-channels remote supply BeagleBone Black cape reference de...
    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...