MAX17541G

42V, 500mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter

42V Synchronous Buck Converter with Internal FETs Enables High Efficiency


Please check latest availability status for a specific part variant.

Description

The MAX17541G high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over 4.5V to 42V input. The converter can deliver up to 500mA and generates output voltages from 0.9V up to 0.92 x VIN. The feedback (FB) voltage is accurate to within ±1.7% over -40°C to +125°C.

The MAX17541G uses peak-current-mode control with pulse-width modulation (PWM) and operates with fixed 600kHz switching frequency at any load. The device is available in a 10-pin (3mm × 2mm) TDFN package. Simulation models are available.
MAX17541G: Block Diagram MAX17541G: Block Diagram Enlarge+

Key Features

  • Reduces External Components and Total Cost
    • No Schottky-Synchronous Operation
    • All-Ceramic Capacitors, Ultra-Compact Layout
  • Reduces Number of DC-DC Regulators to Stock
    • Wide 4.5V to 42V Input
    • Adjustable 0.9V to 92%VIN Output
    • Delivers up to 500mA
  • Reduces Power Dissipation
    • Peak Efficiency > 90%
    • Shutdown Current = 0.9µA (typ)
  • Operates Reliably in Adverse Industrial Environments
    • Hiccup-Mode Current Limit, Sink Current Limit, and Autoretry Startup
    • Built-In Output-Voltage Monitoring (Active-Low RESET Pin)
    • Programmable EN/UVLO Threshold
    • Adjustable Soft-Start and Prebiased Power-Up
    • High Industrial -40°C to +125°C Ambient Operating Temperature Range/-40°C to +150°C Junction Temperature Range

Applications/Uses

  • Base Station, VOIP, Telecom
  • Battery-Powered Equipment
  • General-Purpose Point of Load
  • Home Theatre
  • HVAC and Building Control
  • Industrial Process Control

See parametric specs for Step-Down Switching Regulators (408)


Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)
Design ToolsPackage/PinsBudgetary
Price
minmaxminmaxmaxSee Notes
MAX17541G 4.5420.937Resistor0.5InternalYesYes1600EE-Sim
TDFN/10
TSSOP/14
$1.33 @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.

MAX17541GTAEVKIT: Evaluation Kit for the MAX17541G in 3.3V Output-Voltage Application

Tools & Models

  • EE-Sim: Design & Simulate MAX17541G
  • MAX17541G SIMPLIS Schematic
  • Request Reliability Report for: MAX17541G 
    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:
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