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APW7057 Datasheet High Power Step-Down Synchronous DC/DC Controller

Manufacturer: ANPEC

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Datasheet Details

Part number APW7057
Manufacturer ANPEC
File Size 145.47 KB
Description High Power Step-Down Synchronous DC/DC Controller
Download APW7057 Download (PDF)

General Description

The APW7057 is a 300kHz constant frequency voltage mode synchronous switching controller that drives external N-channel MOSFETs.

When the input supply drops close to output, the upper MOSFET remains on, achieving 100% duty cycle.

Internal loop compensation is optimized for f

Overview

APW7057 High Power Step-Down Synchronous DC/DC Controller.

Key Features

  • Operates from +5V Input.
  • 0.8V Internal Reference Voltage - ±1.5% Accuracy Over Line, Load and Temp.
  • 0.8V to V Output Range CC.
  • Full Duty Cycle Range - 0% to 100%.
  • Internal Loop Compensation.
  • Internal Soft Start - Typical 2ms.
  • Programmable Over-Current Protection - Lossless Sensing Using MOSFET RDS (ON).
  • Under-Voltage Protection.
  • Drives External N-Channel MOSFETs.
  • Shutdown Control.
  • Small.

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