NCP1421 - Boost Converter

General Description

1 FB Output Voltage Feedback Input.

Battery Detector Input and IC Enable.

enters the shutdown mode.

Drain Low

Battery Detector Output.

Key Features

for various battery.
operated.

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NCP1421 boost converter by ON - Datasheet Preview

Datasheet Details

Part number	NCP1421
Manufacturer	ON
File Size	181.79 KB
Description	Boost Converter
Datasheet	NCP1421 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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NCP1421 Boost Converter - Sync-Rect, PFM, DC-DC, True-Cutoff, Ring-Killer 600 mA NCP1421 is a monolithic micropower high−frequency step−up switching converter IC specially designed for battery−operated hand−held electronic products up to 600 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. Ring−Killer is also integrated to eliminate the high−frequency ringing in discontinuous conduction mode.