LDO512 datasheet(1/6 Pages) STMICROELECTRONICS

Numer części	LDO512

Szczegółowy opis	IP Library: Ultra Low Noise, High PSRR, Low Power, 30mA Very Low Dropout Voltage Regulators

PDF	6 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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June 2002

s RF REGULATOR

s VERY LOW DROPOUT VOLTAGE : 30mV

s ULTRA LOW OUTPUT VOLTAGE NOISE

s HIGH PSRR : 70dB

s LOW STAND-BY CURRENT : 20µA

s LOW QUIESCENT CURRENT : 150µA FULL

LOAD

s NO CURRENT IN POWER DOWN MODE

s SHORT CIRCUIT PROTECTION

s SMALL DECOUPLING CERAMIC CAPACITOR

s BIPOLAR INPUT STAGE

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 = 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_512

OUT

IN

PWRDWN

STDBY

Figure 2 : Typical Application Circuit

1

µF

ESR

VOUT

COUT

?

OUT

GND

?

VIN

IN

PWRDWN

Power Down Mode

OFF

ON

Stand-by Mode

STDBY

Active Mode

LDO_512

→

Stand-by Mode

→

LDO_512

IP Library: Ultra Low Noise, High PSRR, Low Power,

30mA Very Low Dropout Voltage Regulators

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

PRODUCT PREVIEW

Podobny numer części - LDO512

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STMicroelectronics	LDO51	204Kb / 4P	IP Library: High PSRR, Low power, 80mA Low Dropout Voltage Regulator Jun-2002
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Podobny opis - LDO512

Producent	Numer części	Arkusz danych	Szczegółowy opis
STMicroelectronics	LDO51	204Kb / 4P	IP Library: High PSRR, Low power, 80mA Low Dropout Voltage Regulator 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
	LDO53	97Kb / 4P	IP Library: High PSRR, Very Low Power, 40mA 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
	LDO-512	278Kb / 5P	Ultra Low Noise, High PSRR, Low Power, 30mA Very Low Dropout Voltage Regulators Jun-2002

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