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R1211N002C - STEP-UP DC/DC CONTROLLER

This page provides the datasheet information for the R1211N002C, a member of the R1211N002A STEP-UP DC/DC CONTROLLER family.

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Datasheet Details

Part number R1211N002C
Manufacturer RICOH
File Size 497.48 KB
Description STEP-UP DC/DC CONTROLLER
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Full PDF Text Transcription

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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%.
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