R1230D181B - PWM/VFM step-down DC/DC converter

This page provides the datasheet information for the R1230D181B, a member of the R1230D001B PWM/VFM step-down DC/DC converter family.

RICOH

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Datasheet Details

Part number	R1230D181B
Manufacturer	RICOH
File Size	876.79 KB
Description	PWM/VFM step-down DC/DC converter
Datasheet	R1230D181B Datasheet
Additional preview pages of the R1230D181B datasheet.

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Full PDF Text Transcription

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2001. Sep. 8 s OUTLINE PWM/VFM step-down DC/DC converter with Synchronous Rectifier R1230D Series The R1230D Series are PWM step-down DC/DC Converters with synchronous rectifier, low supply current by CMOS process. Each of these ICs consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a soft-start circuit, protection circuits, a protection against miss operation under low voltage (UVLO), PWM/VFM alternative circuit, a chip enable circuit, and a driver transistor. A low ripple, high efficiency step-down DC/DC converter can be easily composed of this IC with only a few kinds of external components, or an inductor and capacitors. (As for R1230D001C/D types, divider resistors are also necessary.

Published: Jan 22, 2018 |