LDOC515 datasheet(1/4 Pages) STMICROELECTRONICS

Part #	LDOC515

Description	IP Library: Very Low power, Very High PSRR 100mA Low Dropout Voltage Regulator

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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June 2002

s CMOS REGULATOR

s VERY LOW CONSUMPTION : 170µA FULL

LOAD

s VERY LOW DROPOUT VOLTAGE : 50mV

s HIGH PSRR : 60dB

s OUTPUT CURRENT : 100mA

s NO CURRENT IN POWER DOWN MODE

s SHORT CIRCUIT PROTECTION

TYPICAL APPLICATIONS

– Cellular and Cordless phones supplied by 1 cell

Lithium-ion battery / 3 cells Ni-MH or Ni-Cd

battery

– PDA (Personal Digital Assistant)

– Smart phone

– Portable equipment

– Supply for RF devices for cellular phone

APPLICATION NOTE

An external capacitor (COUT = 4.7µF) with an

equivalent serial resistance (ESR) in the range

0.02 to 0.6

Ω is used for regulator stability.

Figure 1 : Block Diagram

?

VREF

?

LDOC_515

OUT

IN

PWRDWN

STDBY

Figure 2 : Typical Application Circuit

4.7

µF

ESR

VOUT

COUT

?

OUT

GND

?

VIN

IN

PWRDWN

Power Down Mode

OFF

ON

Stand-by Mode

STDBY

Active Mode

LDOC_515

→

Stand-by Mode

→

LDOC_515

This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

PRODUCT PREVIEW

IP Library: Very Low power, Very High PSRR

100mA Low Dropout Voltage Regulator

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