Maxim Integrated MAX17541G

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 x 2mm) TDFN package. Simulation models are available.

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

◦-40°C to +125°C Operation

Typical applications

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

More information

• Datasheet
• IC product information