General Description
The MAX5035 easy-to-use, high-efficiency, high-voltage, step-down DC-DC converter operates from an input voltage up to 76V and consumes only 270µA quiescent current at no load. This pulse-width modulated (PWM) converter operates at a fixed 125kHz switching frequency at heavy loads, and automatically switches to pulse-skipping mode to provide low quiescent current and high efficiency at light loads. The MAX5035 includes internal frequency compensation simplifying circuit implementation.

Features
♦ Wide 7.5V to 76V Input Voltage Range
♦ Fixed (3.3V, 5V, 12V) and Adjustable (1.25V to 13.2V) Versions
♦ 1A Output Current
♦ Efficiency Up to 94%
♦ Internal 0.4Ω High-Side DMOS FET
♦ 270µA Quiescent Current at No Load, 10µA Shutdown Current
♦ Internal Frequency Compensation
♦ Fixed 125kHz Switching Frequency
♦ Thermal Shutdown and Short-Circuit Current Limit
♦ 8-Pin SO and PDIP Packages

Applications
    Automotive
    Consumer Electronics
    Industrial
    Distributed Power