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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.

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...

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Design Solution Mobile Power Selector Guide

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Technical Documents Boost/Step-Up

Technical Documents Buck-Boost/Step-Down

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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
7:46 April 30, 2021


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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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

MAX15106B High-Efficiency, 6A, Current-Mode Synchronous Step-Down Switching Regulator

MAX15106B High-Efficiency, 6A, Current-Mode Synchronous Step-Down Switching Regulator

The MAX15106A/MAX15106B/MAX15106C family of high-efficiency, current-mode, synchronous step-down...
  • Continuous 6A Output Current
  • Efficiency Up to 96%
  • ±1% Accuracy Over Load, Line, and Temperature
  • Operates from a 2.7V to 5.5V Supply
  • Adjustable Output from 0.6V to 0.95 × VIN
  • Programmable Soft-Start
  • Safe Startup into Prebiased Output
  • External Reference Input
  • 0.9MHz, 1.0MHz, and 1.1MHz Switching Frequency Options
  • Stable with Low-ESR Ceramic Output Capacitors
  • Forced PWM Mode
  • Enable Input and Power-Good Output for Power-Supply Sequencing
  • Cycle-by-Cycle Overcurrent Protection
  • Fully Protected Features Against Overcurrent and Overtemperature
  • Input Undervoltage Lockout
  • 20-Bump (4 x 5 Array), 2.5mm x 2mm, WLP Package
  • MAX15106C High-Efficiency, 6A, Current-Mode Synchronous Step-Down Switching Regulator

    MAX15106C High-Efficiency, 6A, Current-Mode Synchronous Step-Down Switching Regulator

    The MAX15106A/MAX15106B/MAX15106C family of high-efficiency, current-mode, synchronous step-down...
  • Continuous 6A Output Current
  • Efficiency Up to 96%
  • ±1% Accuracy Over Load, Line, and Temperature
  • Operates from a 2.7V to 5.5V Supply
  • Adjustable Output from 0.6V to 0.95 × VIN
  • Programmable Soft-Start
  • Safe Startup into Prebiased Output
  • External Reference Input
  • 0.9MHz, 1.0MHz, and 1.1MHz Switching Frequency Options
  • Stable with Low-ESR Ceramic Output Capacitors
  • Forced PWM Mode
  • Enable Input and Power-Good Output for Power-Supply Sequencing
  • Cycle-by-Cycle Overcurrent Protection
  • Fully Protected Features Against Overcurrent and Overtemperature
  • Input Undervoltage Lockout
  • 20-Bump (4 x 5 Array), 2.5mm x 2mm, WLP Package
  • MAX15106A High-Efficiency, 6A, Current-Mode Synchronous Step-Down Switching Regulator

    MAX15106A High-Efficiency, 6A, Current-Mode Synchronous Step-Down Switching Regulator

    The MAX15106A/MAX15106B/MAX15106C family of high-efficiency, current-mode, synchronous step-down...
  • Continuous 6A Output Current
  • Efficiency Up to 96%
  • ±1% Accuracy Over Load, Line, and Temperature
  • Operates from a 2.7V to 5.5V Supply
  • Adjustable Output from 0.6V to 0.95 × VIN
  • Programmable Soft-Start
  • Safe Startup into Prebiased Output
  • External Reference Input
  • 0.9MHz, 1.0MHz, and 1.1MHz Switching Frequency Options
  • Stable with Low-ESR Ceramic Output Capacitors
  • Forced PWM Mode
  • Enable Input and Power-Good Output for Power-Supply Sequencing
  • Cycle-by-Cycle Overcurrent Protection
  • Fully Protected Features Against Overcurrent and Overtemperature
  • Input Undervoltage Lockout
  • 20-Bump (4 x 5 Array), 2.5mm x 2mm, WLP Package
  • MAX20344 Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator

    MAX20344 Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator

    The MAX20343/MAX20344 is an ultra-low quiescent current, noninverting buck-boost converter with ...
    • Extend System Run Time
      • Ultra-Low, 3.5µA (typ) Quiescent Current
      • 250mW Ouptut Power with 500mV Input Voltage
      • Dynamic Voltage Scaling (DVS)
    • Low, Continuous Noise Profile
      • Eliminates Discontinuities Across Operating Voltage Range
      • Eliminates Post-Filtering LDO in Noise Sensitive Applications
    • Adaptable Load Transient Response
      • Adjustable Peak Current for Optimal Performance in Each Application
      • Fast Load Transient Response Minimizes Settling Time
      • Optional Feedback Integrator
        • Enable for up to 3.5W Output Power Capabilities
        • Disable for up to 1.75W Output Power and Faster Load Transient Settling Time
      • FAST Pin Pretriggers Load Response and Offers Improved Load Transient
    • Flexible Control Options
      • I2C Interface with Status Interrupts
      • EN and Status Pins, Single-Resistor VOUT Selection (RSEL)
      • See Table 3 for specific device defaults
    • Extended Operating Temperature from -40°C to +85°C (MAX20343), -40°C to +125°C (MAX20344)
    • Optimally Sized for Small Applications
      • 16-bump, 1.77mm x 2.01mm, 0.4mm Pitch WLP 12-pin, 2.50mm x 2.50mm, Side-Wettable, 0.5mm Pitch Flip-Chip QFN
      • Inductor/Capacitor Available in 0603/0402 Case Sizes
    MAX20343 Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator

    MAX20343 Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator

    The MAX20343/MAX20344 is an ultra-low quiescent current, noninverting buck-boost converter with ...
    • Extend System Run Time
      • Ultra-Low, 3.5µA (typ) Quiescent Current
      • 250mW Ouptut Power with 500mV Input Voltage
      • Dynamic Voltage Scaling (DVS)
    • Low, Continuous Noise Profile
      • Eliminates Discontinuities Across Operating Voltage Range
      • Eliminates Post-Filtering LDO in Noise Sensitive Applications
    • Adaptable Load Transient Response
      • Adjustable Peak Current for Optimal Performance in Each Application
      • Fast Load Transient Response Minimizes Settling Time
      • Optional Feedback Integrator
        • Enable for up to 3.5W Output Power Capabilities
        • Disable for up to 1.75W Output Power and Faster Load Transient Settling Time
      • FAST Pin Pretriggers Load Response and Offers Improved Load Transient
    • Flexible Control Options
      • I2C Interface with Status Interrupts
      • EN and Status Pins, Single-Resistor VOUT Selection (RSEL)
      • See Table 3 for specific device defaults
    • Extended Operating Temperature from -40°C to +85°C (MAX20343), -40°C to +125°C (MAX20344)
    • Optimally Sized for Small Applications
      • 16-bump, 1.77mm x 2.01mm, 0.4mm Pitch WLP 12-pin, 2.50mm x 2.50mm, Side-Wettable, 0.5mm Pitch Flip-Chip QFN
      • Inductor/Capacitor Available in 0603/0402 Case Sizes

    MAX15258 High-Voltage Multiphase Boost Controller with I2C Digital Interface

    The MAX15258, a high-voltage, multiphase boost controller with a I2C digital interface, is desig...
    • Wide Operating Range
      • 8V to 76V Input Voltage Range for Boost and -8V to -76V Input Voltage Range for Inverting-Buck-Boost Configuration
      • 3.3V to 60V Output Voltage Range on the Top of Input Voltage
      • Single-/Dual-/Triple-/Quad-Phase Operation
      • -40°C to +125°C Temperature Range
    • I2C Digital Interface
      • Programmable Internal VREF
      • Programmable Overcurrent Fault Limit
      • Readback for VIN, VOUT, and Phase Current Reporting
      • Fault Status
    • Integration Reduces Design Footprint
      • Multiphase Multiple Controller Synchronization and Interleave
      • Output Voltage Sense Level Shifter

    MAX38889 2.5V–5.5V, 3A Reversible Buck/Boost Regulator for Backup Power Applications

    • 2.5V to 5.5V System Output Voltage Range
    • 0.5V to 5.5V Supercapacitor Voltage Range
    • ±1% Threshold Accuracy
    • 2.5% Hysteresis between Backup and Charging
    • 1A to 3A Peak Inductor Current Limit
      • Peak Inductor Current Is Pin-Programmable over 1A to 3A through External Resistor
    • 94% Peak Efficiency, Charging or Discharging Mode
    • 4µA Quiescent Current in Ready State
      • After Supercapacitor Is Charged, Draws only 4µA of Quiescent Current
    • Ready and Backup State Outputs
      • RDY and BKB Flags Provide Real-Time Status to System
    • 3mm x 3mm, 16-Pin TQFN Package
    MAX25203 Dual-Phase Synchronous Boost Controller with Programmable Gate Drive and I<sup>2</sup>C

    MAX25203 Dual-Phase Synchronous Boost Controller with Programmable Gate Drive and I2C

    The MAX25203 automotive dual-phase synchronous boost controller enables infotainment systems to ...
    • Meets Stringent OEM Module Power Consumption and Performance Specifications
      • ±1.5% Output-Voltage Accuracy at FB
      • Output Voltage Adjustable Between 12V and 65V (70V Abs Max)
      • 5µA Shutdown Supply Current
    • High Efficiency and Current Sharing
      • Pass-Through for >98% Efficiency
      • OTP Gate Drive Voltage from 6.5V to 10V Allows User to Optimize External MOSFETs and Improve Efficiency
      • Current Sharing Accuracy of ±5% Between Phases to Improve System Efficiency
      • Programmable Current-Limit Blanking Handles High Peak Loads without Oversizing Inductor
    • EMI-Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range
      • Spread-Spectrum Option
      • On-the-Fly Frequency-Synchronization Input
      • Resistor-Programmable Frequency between 220kHz and 2.1MHz
      • Synchronization Output Provides 90° Out-of-Phase Clock for Quad-Phase Operation
    • Integration and Thermally Enhanced Package Saves Board Space and Cost
      • Current-Mode Controllers with Forced-Continuous and Skip Modes
      • Side-Wettable, 32-Pin TQFN-EP Package
    • Protection Features and I2C Diagnostics for Improved System Reliability
      • Supply Undervoltage Lockout
      • Die Temperature Monitoring through I2C
      • Short-Circuit Protection with True ShutdownTM
      • Individual Phase Current Monitoring through I2C
    MAX20012B Automotive Low-Voltage 2-Channel Step-Down Controller

    MAX20012B Automotive Low-Voltage 2-Channel Step-Down Controller

    The MAX20012B is a dual-output, high-efficiency synchronous step-down controller IC that operate...
    • 2-Channel High-Efficiency DC-DC Controller in a Small Solution Size
      • 3.0V to 5.5V Operating Supply Voltage
      • OUT1 Supports 24A (with Two Phases)
      • OUT2 Supports 12A
    • High-Precision Regulator for Applications Processors
      • ±2% Output-Voltage Accuracy
      • Differential Remote Voltage Sensing
      • I2C-Controlled Output Voltage: 0.5V to 1.27V in 10mV Steps
      • 0.625V to 1.5875V in 12.5mV Steps
      • Excellent Load-Transient Performance
    • Low-Noise Features Reduce EMI
      • 2.2MHz Operation
      • Spread-Spectrum Option
      • Frequency-Synchronization Input/Output
      • Current-Mode, Forced-PWM, and Skip Operation
    • Robust for the Automotive Environment
      • Individual Enable Inputs and PGOOD Outputs
      • Low RDS(ON) External FETs
      • Overtemperature and Short-Circuit Protection
      • 32-Pin (5mm × 5mm) TQFN with Exposed Pad
      • -40°C to +125°C Operating Temperature Range
      • AECQ-100 Qualified
    MAX17573 4.5V to 60V, 3.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation

    MAX17573 4.5V to 60V, 3.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation

    The MAX17573 is a high-efficiency, high-voltage, synchronous step-down DC-DC converter with inte...
    • Reduces External Components and Total Cost
      • No Schottky-Synchronous Operation
      • Internal Loop Compensation
      • All-Ceramic Capacitors, Compact Layout
    • Reduces Number of DC-DC Regulators to Stock
      • Wide 4.5V to 60V Input
      • Adjustable Output Voltage Range from 0.9V up to 90% of VIN
      • 100kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
    • Reduces Power Dissipation
      • Peak Efficiency of 95.4% at VIN = 12V, VOUT = 5V at 500kHz Switching Frequency
      • Pin-to-Pin Compatible with MAX17574, and Improved Efficiency through Superior Switching Performance compared to MAX17574
      • PFM and DCM Modes Enable Enhanced Light-Load Efficiency
      • Auxiliary Bootstrap Supply (EXTVCC) for Improved Efficiency
      • 2.8μA Shutdown Current
    • Operates Reliably in Adverse Industrial Environments
      • Built-in Hiccup Mode Overload Protection
      • Built-In Output-Voltage Monitoring with Active-Low RESET
      • Programmable EN/UVLO Threshold
      • Adjustable and Monotonic Startup with Prebiased Output Voltage
      • Overtemperature Protection

    Tools

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    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...

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