R5220x
R5220x is PWM Step-down DC/DC Converter manufactured by RICOH.
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R5220x SERIES
PWM Step-down DC/DC Converter with switch function
NO.EA-121-070824
OUTLINE
The R5220x Series are CMOS-based PWM step-down DC/DC Converters with synchronous rectifier, low supply current and LDO mode. DC/DC converter of the R5220x 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-DC to DC converter / LDO alternative circuit, a chip enable circuit, and a driver transistor. A high efficiency step-down DC/DC converter can be easily posed of this IC with only a few kinds of external ponents, or an...
