MAX15041

Low-Cost, 3A, 4.5V to 28V Input, 350kHz, PWM Step-Down DC-DC Regulator with Internal Switches

Low-Cost, 3A, DC-DC Regulator with Internal Switches Ideal for Low-Current Power Rails


Please check latest availability status for a specific part variant.

Description

The MAX15041 low-cost, synchronous DC-DC converter with internal switches delivers an output current up to 3A. The MAX15041 operates from an input voltage of 4.5V to 28V and provides an adjustable output voltage from 0.606V to 90% of VIN, set with two external resistors. The MAX15041 is ideal for distributed power systems, preregulation, set-top boxes, television, and other consumer applications.

The MAX15041 features a peak-current-mode PWM controller with internally fixed 350kHz switching frequency and a 90% maximum duty cycle. The current-mode control architecture simplifies compensation design, and ensures a cycle-by-cycle current limit and fast response to line and load transients. A high-gain transconductance error amplifier allows flexibility in setting the external compensation by using a type II compensation scheme, thereby allowing the use of all ceramic capacitors.

This synchronous buck regulator features internal MOSFETs that provide better efficiency than asynchronous solutions, while simplifying the design relative to discrete controller solutions. In addition to simplifying the design, the integrated MOSFETs minimize EMI, reduce board space, and provide higher reliability by minimizing the number of external components.

The MAX15041 also features thermal shutdown and overcurrent protection (high-side sourcing and low-side sinking), and an internal 5V LDO with undervoltage lockout. In addition, this device ensures safe startup when powering into a prebiased output.

Other features include an externally adjustable soft-start that gradually ramps up the output voltage and reduces inrush current. Independent enable control and power-good signals allow for flexible power sequencing.

The MAX15041 is available in a space-saving, high-power, 3mm x 3mm, 16-pin TQFN-EP package and is fully specified from -40°C to +85°C.
MAX15041: Typical Operating Circuit MAX15041: Typical Operating Circuit Enlarge+

Key Features

  • Up to 3A of Continuous Output Current
  • ±1% Output Accuracy Over Temperature
  • 4.5V to 28V Input Voltage Range
  • Adjustable Output Voltage Range from 0.606V to 0.9 x VIN
  • Internal 170mΩ RDS-ON High-Side and 105mΩ RDS-ON Low-Side Power Switches
  • Fixed 350kHz Switching Frequency
  • Up to 93% Efficiency
  • Cycle-By-Cycle Overcurrent Protection
  • Programmable Soft-Start
  • Stable with Low-ESR Ceramic Output Capacitors
  • Safe Startup into Prebiased Output
  • Enable Input and Power-Good Output
  • Fully Protected Against Overcurrent and Overtemperature
  • VDD LDO Undervoltage Lockout
  • Space-Saving, Thermally Enhanced, 3mm x 3mm Package

Applications/Uses

  • Consumer Products
  • Distributed Power Systems
  • Preregulators
  • Set-Top Boxes
  • Televisions
  • Wall Adapters
  • XDSL Modems

See parametric specs for Step-Down Switching Regulators (405)


Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingDC-DC OutputsOper. Freq.
(kHz)
Design ToolsPackage/PinsBudgetary
Price
minmaxminmaxmaxSee Notes
MAX15041 4.5280.625Resistor3InternalYes1350EE-Sim
TQFN/16
$3.62 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX15041EVKIT: Evaluation Kit for the MAX15041

Tools & Models

  • EE-Sim: Design & Simulate MAX15041
  • MAX15041 SIMPLIS Schematic
  • Product Reliability Reports: MAX15041.pdf 
    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

    Related Resources


    MAX18066
    High-Efficiency, 4A, Step-Down DC-DC Regulator with Internal Power Switches

    • Feature Integration Shrinks Solution Size
    • High Efficiency Conserves Power
    • Safe, Reliable, Accurate Operation

    MAX18166
    High-Efficiency, 4A, Step-Down DC-DC Regulator with Internal Power Switches

    • Feature Integration Shrinks Solution Size
    • High Efficiency Conserves Power
    • Safe, Reliable, Accurate Operation

    MAX77511
    10V Input, Quad-Phase Configurable, 3A/Phase, High-Efficiency Buck Converter

    • 3A/Phase Configurable Buck Regulator
    • 2.3V to 10V Input Voltage Range
    • 0.25V to 5.2V Output Voltage Range

    MAX77711
    10V Input, Quad-Phase Configurable, 3A/Phase, High-Efficiency Buck Converter

    • 3A/Phase Configurable Buck Regulator
    • 2.3V to 10V Input Voltage Range
    • 0.25V to 5.2V Output Voltage Range

    MAX15158, MAX15158A
    High-Voltage Multiphase Boost Controller

    • Wide Operating Range
    • Integration Reduces Design Footprint
    • Robust Fault Protection Improves Quality and Reliability

    MAX15158A
    High-Voltage Multiphase Boost Controller

    • Wide Operating Range
    • Integration Reduces Design Footprint
    • Robust Fault Protection Improves Quality and Reliability

    MAX25201
    36V Automotive Low-IQ 200kHz to 2.2MHz Synchronous Boost Controller

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • 20µA Quiescent Current in Skip Mode
    • ±1.5% FB Voltage Accuracy
    • Output Voltage Range: Fixed or Adjustable Between 3.5V and 60V
  • Enables Crank-Ready Designs
    • Operates Down to 1.8V After Startup
    • Wide Input Supply Range from 4.5V to 36V
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands Without Sacrificing Wide Input Voltage Range
    • Spread-Spectrum Option
    • Frequency-Synchronization Input
    • Resistor-Programmable Frequency Between 200kHz and 2.2MHz

  • MAX25202
    36V Automotive Low-IQ 200kHz to 2.2MHz Synchronous Boost Controller

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • 20µA Quiescent Current in Skip Mode
    • ±1.5% FB Voltage Accuracy
    • Output Voltage Range: Fixed or Adjustable Between 3.5V and 60V
  • Enables Crank-Ready Designs
    • Operates Down to 1.8V After Startup
    • Wide Input Supply Range from 4.5V to 36V
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands Without Sacrificing Wide Input Voltage Range
    • Spread-Spectrum Option
    • Frequency-Synchronization Input
    • Resistor-Programmable Frequency Between 200kHz and 2.2MHz

  • MAX25200
    36V Automotive Low-IQ 200kHz to 2.2MHz Sepic/Flyback Controller

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
  • 20μA Quiescent Current in Skip Mode
  • ±1.5% FB Voltage Accuracy

  • MAX20499
    Automotive Core Power Supply 5V, 8A/12A Step-Down Converter

  • High-Efficiency DC-DC Converter
  • Up to 12A peak output current:
    • MAX20499A: 8A
    • MAX20499B: 12A
  • Differential Remote Voltage Sensing

  • MAX20075D
    36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

    • Synchronous DC-DC Converter with Integrated FETs
    • 20ns Minimum On-Time Small Solution Size Saves Space
    • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

    MAX20076E
    36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

    • Synchronous DC-DC Converter with Integrated FETs
    • 20ns Minimum On-Time Small Solution Size Saves Space
    • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

    MAX25276D
    36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

    • Synchronous DC-DC Converter with Integrated FETs
    • 20ns Minimum On-Time Small Solution Size Saves Space
    • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

    MAX20076D
    36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

    • Synchronous DC-DC Converter with Integrated FETs
    • 20ns Minimum On-Time Small Solution Size Saves Space
    • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

    MAXM17720
    Integrated 4V-60V, 150mA, Himalaya uSLIC Power Module DC-DC Converter with 50mA Linear Regulator

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17724
    Integrated 4V-60V, 150mA, Himalaya uSLIC Power Module DC-DC Converter with 50mA Linear Regulator

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17712
    Integrated 4V-60V, 150mA, Himalaya uSLIC Power Module DC-DC Converter with 50mA Linear Regulator

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM15068
    7.5V to 60V, 200mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17633
    4.5V to 36V, 2A Himalaya uSLIC Step-Down Power Modules

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17634
    4.5V to 36V, 2A Himalaya uSLIC Step-Down Power Modules

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17635
    4.5V to 36V, 2A Himalaya uSLIC Step-Down Power Modules

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17537
    4.5V to 60V, 3A High-Efficiency, DC-DC Step-Down SiP Power Module with Integrated Inductor

    • Reduces Design Complexity, Manufacturing Risks, and Time to Market
    • Saves Board Space in Space-Constrained Applications
    • Offers Flexibility for Power-Design Optimization

    MAXM17632
    4.5V to 36V, 1A Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17631
    4.5V to 36V, 1A Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17630
    4.5V to 36V, 1A Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAX20473
    Low-Voltage Synchronous Boost Converter

    • Synchronous Boost Converter
    • 3.0V to 4.0V Operating Supply Voltage
    • True Output Shutdown

    MAX17662
    3.5V to 36V, 2A, High-Efficiency, Synchronous Step-Down DC-DC Converter

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation

    MAX77504
    14V Input, 3A High-Efficiency Buck Converter in WLP or QFN

    • 3A Single-Channel Buck Regulator
    • 2.6V to 14V Input Voltage
    • 0.6V to 6V Output Voltage Range

    MAX20458
    36V Boost Controller with 3.5A Synchronous Buck Converter For Automotive Applications

    • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • Enables Crank-Ready Designs
    • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range

    MAX20057
    36V Boost Controller with Dual 3.5A/2A Synchronous Buck Converters for Automotive Applications

    • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • Enables Crank-Ready Designs
    • Integration and Thermally Enhanced Packages Save Board Space and Cost

    MAX17631
    4.5V to 36V, 1.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation

    MAX17634A
    4.5V to 36V, 4.25A, High-Efficiency, Synchronous Step-Down DC-DC Converter

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation

    MAX17634B
    4.5V to 36V, 4.25A, High-Efficiency, Synchronous Step-Down DC-DC Converter

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation

    MAX17634C
    4.5V to 36V, 4.25A, High-Efficiency, Synchronous Step-Down DC-DC Converter

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation