ST619 데이터 시트보기 (PDF) - STMicroelectronics

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ST619

DC-DC CONVERTER REGULATED 5V CHARGE PUMP

STMicroelectronics 

ST619LB

SERIES

DC-DC CONVERTER REGULATED 5V CHARGE PUMP

s REGULATED 5V ±4% CHARGE PUMP

s OUTPUT CURRENT GUARANTEED OVER

TEMPERATURE : 20mA (VI ≥ 2V ),

30mA (VI ≥ 3V )

s NO INDUCTORS; VERY LOW EMI NOISE

s USES SMALL, INEXPENSIVE CAPACITORS

s LOGIC CONTROLLED 1µA MAX

SHUT-DOWN SUPPLY CURRENT

s SHUT DOWN DISCONNECTS LOAD FROM

INPUT

s AVAILABLE IN SO-8 AND DIP-8 PACKAGES

DESCRIPTION

The ST619LB is a step-up charge pump DC-DC

converter which delivers a regulated 5V ±4%

output at 30mA and over temperature. The input

voltage range is 2V to 3.6V (two battery cells).

It requires only four external capacitor: two 0.22µF

flying capacitors, and 10µF capacitors at the input

and output.

DIP-8

SO-8

Low operating supply current (typ 200µA) make

the device ideal for small, portable and battery

powered applications. When shut down the load

is disconnected from the input and the supply

current is typically 0.02µA. The ST619LB is

available in SO-8 and DIP-8 packages.

SCHEMATIC DIAGRAM

May 2001

1/9

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