NCP1422 - Sync-Rect PFM Step-Up DC-DC Converter

Datasheet Summary

Description

Output Voltage Feedback Input.

Battery Detector Input and IC Enable.

enters the shutdown mode.

Drain Low

Battery Detector Output.

Features

for various battery.
operated.

ON Semiconductor

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Datasheet Details

Part number	NCP1422
Manufacturer	ON Semiconductor
File Size	256.66 KB
Description	Sync-Rect PFM Step-Up DC-DC Converter
Datasheet	NCP1422 Datasheet
Additional preview pages of the NCP1422 datasheet.

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Full PDF Text Transcription

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DATA SHEET www.onsemi.com Boost Converter – Sync-Rect, PFM, DC-DC, True-Cutoff, Ring-Killer 800 mA NCP1422 NCP1422 is a monolithic micropower high−frequency step−up switching converter IC specially designed for battery−operated hand−held electronic products up to 800 mA loading. It integrates Sync−Rect to improve efficiency and to eliminate the external Schottky Diode. High switching frequency (up to 1.2 MHz) allows for a low profile, small−sized inductor and output capacitor to be used. When the device is disabled, the internal conduction path from LX or BAT to OUT is fully blocked and the OUT pin is isolated from the battery. This True−Cutoff function reduces the shutdown current to typically only 50 nA.

Published: Jan 16, 2007 |