LDO57 datasheet(1/4 Pages) STMICROELECTRONICS

Numer części	LDO57

Szczegółowy opis	IP Library: High Output Current, Low power, 400mA Low Dropout Voltage Regulator

PDF	4 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

Logo

1 / 4 page

1/4

June 2002

IP Library: High Output Current, Low power,

400mA Low Dropout Voltage Regulator

s DIGITAL BASEBAND REGULATOR

s VERY LOW DROPOUT VOLTAGE : 50mV

s HIGH OUTPUT CURRENT : 400mA

s LOW QUIESCENT CURRENT : 100

µA

s HIGH PSRR : 60dB

s LOW OUTPUT VOLTAGE NOISE

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 Digital Baseband 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

?

LDO_57

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

LDO_57

→

Stand-by Mode

→

LDO_57

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 - LDO57

Producent	Numer części	Arkusz danych	Szczegółowy opis
Exar Corporation	LDO5	1Mb / 29P	Quad Channel Digital PWM/PFM Programmable Power Management System
STMicroelectronics	LDO51	204Kb / 4P	IP Library: High PSRR, Low power, 80mA Low Dropout Voltage Regulator Jun-2002
	LDO512	269Kb / 6P	IP Library: Ultra Low Noise, High PSRR, Low Power, 30mA Very Low Dropout Voltage Regulators Jun-2002
	LDO513	98Kb / 4P	IP Library: Power Supply Range 2.9V to 13V, Low Power, 50mA Low Dropout Voltage Regulator Jun-2002
	LDO514	164Kb / 4P	IP Library: High PSRR, Very Low power, 200mA Low Dropout Voltage Regulator Jun-2002

More results

Podobny opis - LDO57

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
	LDO55	21Kb / 2P	IP Library: Very Low Power, Adjustable Output Voltage², 25mA 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

More results

LDO57 Arkusz danych(PDF) 1 Page - STMicroelectronics

LDO57 Arkusz danych(HTML) 1 Page - STMicroelectronics

Podobny numer części - LDO57

Podobny opis - LDO57

Html Pages

1 2 3 4

Arkusz danych Pobierz

Link URL