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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 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


High Power Density Solutions for AI & Server
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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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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

MAXM17626 2.7V to 5.5V, 600mA Himalaya uSLIC Step-Down Power Modules

The Himalaya series of voltage regulator ICs, power modules, and chargers enable cooler, smaller...
  • Easy to Use
    • 2.7V to 5.5V Input
    • Adjustable 0.8V to 3.3V Output
    • ±1% Feedback Accuracy
    • Up to 600mA Output Current
    • Fixed 2MHz or 4MHz Operation
    • 100% Duty-Cycle Operation
    • Internally Compensated
    • All Ceramic Capacitors
  • High Efficiency
    • Selectable PWM- or PFM- Mode of Operation
    • Shutdown Current as low as 0.1μA (typ)
  • Flexible Design
    • Internal Soft-Start and Prebias Startup
    • Open-Drain Power Good Output (PGOOD Pin)
  • Robust Operation
    • Overtemperature Protection
    • -40°C to + 125°C Ambient Operating Temperature/-40°C to +150°C Junction Temperature
  • Rugged
    • Passes Drop, Shock, and Vibration Standards: JESD22-B103, B104, B111

MAXM17625 2.7V to 5.5V, 600mA Himalaya uSLIC Step-Down Power Modules

The Himalaya series of voltage regulator ICs, power modules, and chargers enable cooler, smaller...
  • Easy to Use
    • 2.7V to 5.5V Input
    • Adjustable 0.8V to 3.3V Output
    • ±1% Feedback Accuracy
    • Up to 600mA Output Current
    • Fixed 2MHz or 4MHz Operation
    • 100% Duty-Cycle Operation
    • Internally Compensated
    • All Ceramic Capacitors
  • High Efficiency
    • Selectable PWM- or PFM- Mode of Operation
    • Shutdown Current as low as 0.1μA (typ)
  • Flexible Design
    • Internal Soft-Start and Prebias Startup
    • Open-Drain Power Good Output (PGOOD Pin)
  • Robust Operation
    • Overtemperature Protection
    • -40°C to + 125°C Ambient Operating Temperature/-40°C to +150°C Junction Temperature
  • Rugged
    • Passes Drop, Shock, and Vibration Standards: JESD22-B103, B104, B111

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

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

MAX17702 4.5V to 60V, Synchronous Step-Down Lead-Acid Battery Charger Controller

The Himalaya series of voltage regulator ICs, power modules, and chargers enable cooler, smaller...
  • Optimized Feature-Set for Pb-Acid Batteries
    • ±4% Charging Current Regulation Accuracy
    • ±6% Charging Current Monitor Accuracy (ISMON)
    • ±1% Voltage Regulation Accuracy
    • Programmable Constant Current (CC) Mode Charging Current (ILIM)
    • Full-Battery Detection with Taper Current Threshold and Absorption CV Timer (TMR)
    • 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)
    • Deeply Discharged Battery Detection and Preconditioning (DDTH)
    • Battery Temperature Sensing and Charge when Within Temperature of Range (TEMP)
    • Output Voltage Temperature Compensation
    • Cycle-by-Cycle Overcurrent Limit
    • Programmable EN/UVLO Threshold
    • Status Output Monitoring Using Open-Drain Outputs (FLG1 and FLG2)
    • Overtemperature Protection
    • Wide -40°C to +125°C Ambient Operating Temperature Range/ -40°C to +150°C Junction Temperature Range

MAX20472B Low-Voltage Synchronous Boost Converter

The MAX20471, MAX20472, and MAX20472B are high-efficiency low-voltage DC-DC converters that boos...
  • Multiple Functions for Small Size
    • Synchronous Boost Converter
      • 3.8V to 5.25V Output in 50mV Steps
      • 500mA and 1AOutput Versions
    • 3V to 4V Operating Supply Voltage
    • True Output Shutdown
    • 2.2MHz Operation for the MAX20471, MAX20472
    • 2.0MHz Operation for the MAX20472B
    • Open-Drain Reset Output Pin (Active-Low RESET)
    • Spread-Spectrum Enable Pin (SSEN)
  • High Precision
    • ±1.5% Output-Voltage Accuracy
    • 93V ±2% Undervoltage Monitoring
    • 107V ±2% Overvoltage Monitoring
    • Good Load-Transient Performance
    • Robust for the Automotive Environment
      • Current-Mode, Forced-PWM, and Skip Operation
      • Overtemperature and Short-Circuit Protection
      • 12-Pin (3mm × 3mm) TDFN
      • 12-Pin (3mm × 3mm) SWTDFN
      • 8-Pin (0.150”) SOIC (MAX20471 Only)
      • -40°C to +125°C Automotive Temperature Range

    MAX20812 Dual-Output 6A, 3Mhz, 2.7V to 16V, Step-Down Switching Regulator

    The MAX20812 is a dual-output, fully integrated, highly efficient, step-down DC-DC switching reg...
    • High Power Density with Low Component Count
      • Dual-Output or Dual-Phase Operation
      • Single-Supply Operation with Integrated LDO for Bias Generation
      • Optional 2.5V to 5.5V External Bias for Higher Efficiency
      • Compact 3.5mm x 4.6mm, 21-Pin, FC2QFN Package
      • Internal Compensation
    • Wide Operating Range
      • 2.7V to 16V Input Voltage Range
      • 0.5V to 5.8V Output Voltage Range
      • 500kHz to 3MHz Configurable Switching Frequency
      • -40°C to +125°C Junction Temperature Range
      • Three Pin-Strap Programming Pins to Select Different Configurations
      • Independent Enable and Power Good for Each Output
    • Optimized Performance and Efficiency
      • 92.5% Peak Efficiency with VDDH = 12V, VOUT = 1.8V, and fSW = 1MHz
      • Interleaved 180° Out-of-Phase Operation
      • Selectable AMS to Improve Load Transient
      • Selectable DCM to Improve Light Load Efficiency
      • Active Current Balancing for Dual-Phase Operation

    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

    MAX17644 4.5V to 36V, 2.7A, High-Efficiency, Synchronous Step-Down DC-DC Converter

    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 Components
      • All-Ceramic Capacitors, Compact Layout
    • Reduces Number of DC-DC Regulators to Stock
      • Wide 4.5V to 36V Input
      • Adjustable Output Voltage Range from 0.9V up to 90% of VIN
      • Delivers up to 2.7A Over the Temperature Range
      • 400kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
      • Available in a 16-Pin, 3mm x 3mm TQFN Package
    • Reduces Power Dissipation
      • Peak Efficiency of 95.41%
      • 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
      • Hiccup-Mode Overload Protection
      • Adjustable and Monotonic Startup with Prebiased Output Voltage
      • Built-in Output-Voltage Monitoring with Active-Low RESET
      • Programmable EN/UVLO Threshold
      • Overtemperature Protection
      • CISPR32 Class B Compliant
      • 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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    This non-isolated PoE powered device design combines a PD controller and buck converter on a 1.2...
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    Integrated power solution providing 5V from a wide input range of 10V to 42V with up to 100mA of...
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    Integrated power solution providing 3.3V from a wide input range of 4.5V to 42V with up to 300mA...

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

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    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.

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

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