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NCP1421

Part Number	NCP1421
Manufacturer	ON
Description	Boost Converter
Published	May 12, 2005
Detailed Description	NCP1421 Boost Converter - Sync-Rect, PFM, DC-DC, True-Cutoff, Ring-Killer 600 mA NCP1421 is a monolithic micropower hig...
Datasheet	NCP1421 PDF File

Overview

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−Kill...

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