LDO51 datasheet(1/4 Pages) STMICROELECTRONICS

部品番号	LDO51

部品情報	IP Library: High PSRR, Low power, 80mA Low Dropout Voltage Regulator

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メーカー	STMICROELECTRONICS [STMicroelectronics]

ホームページ	http://www.st.com

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June 2002

IP Library: High PSRR, Low power,

80mA Low Dropout Voltage Regulator

s ANALOG BASEBAND REGULATOR

s VERY LOW DROPOUT VOLTAGE : 50mV

s HIGH PSRR : 60dB

s LOW QUIESCENT CURRENT : 130

µA

s LOW OUTPUT VOLTAGE NOISE

s NO CURRENT IN POWER DOWN MODE

s SHORT CIRCUIT PROTECTION

s SMALL DECOUPLING CERAMIC CAPACITOR

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 Analog and Mixed-signal devices for

cellular phone.

APPLICATION NOTE

An external capacitor (COUT = 1µF) 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

?

LDO_51

OUT

IN

PWRDWN

Figure 2 : Typical Application Circuit

1

µF

ESR

VOUT

COUT

?

OUT

GND

?

VIN

IN

Power Down Mode

OFF

ON

LDO_51

PWRDWN

LDO_51

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

PRODUCT PREVIEW

同様の部品番号 - LDO51

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同様の説明 - LDO51

メーカー	部品番号	データシート	部品情報
STMicroelectronics	LDO512	269Kb / 6P	IP Library: Ultra Low Noise, High PSRR, Low Power, 30mA Very Low Dropout Voltage Regulators Jun-2002
	LDO514	164Kb / 4P	IP Library: High PSRR, Very Low power, 200mA Low Dropout Voltage Regulator Jun-2002
	LDO518	105Kb / 4P	IP Library: Low Noise, High PSRR 100mA Low Dropout Voltage Regulator Jun-2002
	LDO52	48Kb / 4P	IP Library: High PSRR, Low Power, 70mA Low Dropout Voltage Regulator Jun-2002
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	LDO57	110Kb / 4P	IP Library: High Output Current, Low power, 400mA Low Dropout Voltage Regulator Jun-2002
	LDO58	106Kb / 4P	IP Library: Ultra Low Noise, Low power, 100mA Low Dropout Voltage Regulator Jun-2002
	LDO59	95Kb / 4P	IP Library: Ultra Low Noise, High PSRR, Low Power, 20mA Low Dropout Voltage Regulator Jun-2002
	LDOC515	24Kb / 4P	IP Library: Very Low power, Very High PSRR 100mA Low Dropout Voltage Regulator Jun-2002
	LDOC516	24Kb / 4P	IP Library: High PSRR, Low Power, 100mA Low Dropout Voltage Regulator Jun-2002

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