ST3M01 Ver la hoja de datos (PDF) - STMicroelectronics

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ST3M01

TRIPLE VOLTAGE REGULATOR

STMicroelectronics 

ST3M01

TRIPLE VOLTAGE REGULATOR

s ONLY TWO CELL NEED AS INPUT

s THREE REGULATED OUTPUT

1) HIGH EFFICENCY PFM DC/DC

CONVERTER 3.3V AT 200mA (87%

EFFICENCY)

2) VERY LOW NOISE AND VERY LOW

DROP VREG (3V AT 20mA)

3) VERY LOW NOISE AAND VERY LOW

DROP VREG (1.9V AT 20mA)

s LOGIC CONTROLLED ELECTRONIC

SHUTDOWN

s LOW BATTERY DETECTOR

s VIRTUAL GND PIN

s TEMPERATURA RANGE: -40 TO 85°C

SO-14

SCHEMATIC DIAGRAM

Vin

150 µF

IN_Linear

On-Mode

SHDN

Off-Mode

Vref

100 nF

1 KΩ

November 2000

15 µH

IN_SW

Lx

DDCC//DCC

OUT DC/DC

150 µF

Linear A

Linear B

-

+

RReeff

OUT LA

1 µF

OUT LB

1 µF

Virtual GND

LBO

GND_SW

GND_Signal

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