R5220x Datasheet - RICOH electronics devices division

R5220x PWM Step-down DC/DC Converter

Pin No 1 2 3 4 5 6 Symbol Lx GND MODE CE VOUT VIN Description LX Pin Voltage Supply Pin Ground Pin Mode changer Pin (Refer to the selection guide above.) Chip Enable Pin (active with "H") Output Pin Voltage Supply Pin * Tab in the parts have GND level. (They are connected to the back side of t.

www.DataSheet4U.com 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 alt.

R5220x Features

* Supply Current Typ. 350µA (DC/DC), Typ. 5µA (VR) Standby Current Typ. 0.1µA Built-in Driver ON Resistance P-channel 0.5Ω, N-channel 0.5Ω (at VIN=3.6V) Output Current

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