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MAX5035 - Maxim

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MAX5035 1A / 76V / High-Efficiency MAXPower Step-Down DC-DC Converter

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 cu.

Features

o Wide 7.5V to 76V Input Voltage Range o Fixed (3.3V, 5V, 12V) and Adjustable (1.25V to 13.2V) Versions o 1A Output Current o Efficiency Up to 94% o Internal 0.4Ω High-Side DMOS FET o 270µA Quiescent Current at No Load, 10µA Shutdown Current o Internal Frequency Compensation o Fixed 125kHz Switching Frequency o Thermal Shutdown and Short-Circuit Current Limit o 8-Pin SO and PDIP Packages OOrrddeerriinngg IInnffoorrmmaattiioonn PART PIN- OUTPUT TEMP RANGE PACKAGE VOLTAGE (V) MAX5035AUSA 0°C to +85°C 8 SO MAX5035AUPA MAX5035AASA 0°C to +85°C 8 PDIP -40°C to +125°C 8 SO 3.3 MAX5035AA.

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