R1211D002B - STEP-UP DC/DC CONTROLLER

RICOH

Download the R1211D002B datasheet PDF. This datasheet also covers the R1211N002A variant, as both devices belong to the same step-up dc/dc controller family and are provided as variant models within a single manufacturer datasheet.

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R1211D002B step-up dc/dc controller by RICOH - Datasheet Preview — Note: The manufacturer provides a single datasheet file (R1211N002A-RICOH.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	R1211D002B
Manufacturer	RICOH
File Size	497.48 KB
Description	STEP-UP DC/DC CONTROLLER
Datasheet	R1211D002B Datasheet

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Other Datasheets by RICOH

Part Number	Description
R1211D002A	STEP-UP DC/DC CONTROLLER
R1211D002C	STEP-UP DC/DC CONTROLLER
R1211D002D	STEP-UP DC/DC CONTROLLER
R1211D100A	STEP-UP DC/DC CONTROLLER
R1211D101A	STEP-UP DC/DC CONTROLLER

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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R1211x SERIES STEP-UP DC/DC CONTROLLER NO.EA-088-0604 OUTLINE The R1211x Series are CMOS-based PWM step-up DC/DC converter controllers with low supply current. Each of the R1211x Series consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a reference current unit, a protection circuit, and an under voltage lockout (UVLO) circuit. A low ripple, high efficiency step-up DC/DC converter can be composed of this IC with some external components, or an inductor, a diode, a power MOSFET, divider resisters, and capacitors. Phase compensation has been made internally in the R1211x002B/D Series, while phase compensation can be made externally as for R1211x002A/C Series. B/D version has stand-by mode. Max duty cycle is internally fixed typically at 90%.