LDS3985M22R datasheet(1/13 Pages) STMICROELECTRONICS

tên linh kiện	LDS3985M22R

Giải thích chi tiết về linh kiện	ULTRA LOW DROP-LOW NOISE BICMOS 300mA V.REG. FOR USE WITH VERY LOW ESR OUTPUT CAPACITOR

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December 2004

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INPUT VOLTAGE FROM 2.5V TO 6V

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STABLE WITH LOW ESR CERAMIC

CAPACITORS

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ULTRA LOW DROPOUT VOLTAGE (150mV

TYP. AT 300mA LOAD, 0.4mV TYP. AT 1mA

LOAD)

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VERY LOW QUIESCENT CURRENT (85µA

TYP. AT NO LOAD, 200µA TYP. AT 300mA

LOAD; MAX 1.5µA IN OFF MODE)

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GUARANTEED OUTPUT CURRENT UP TO

300mA

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WIDE RANGE OF OUTPUT VOLTAGE:

1.25V; 1.35; 1.5V; 1.8V; 2V; 2.1V; 2.2V; 2.5V;

2.6V; 2.7V; 2.8V; 2.85V; 2.9V; 3V; 3.1V; 3.2V;

3.3V; 4.7V

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FAST TURN-ON TIME: TYP. 240µs

[CO=2.2µF, CBYP= 33nF AND IO=1mA]

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LOGIC-CONTROLLED ELECTRONIC

SHUTDOWN

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INTERNAL CURRENT AND THERMAL LIMIT

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OUTPUT LOW NOISE VOLTAGE 30µVRMS

OVER 10Hz to 100KHz

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S.V.R. OF 55dB AT 1KHz, 50dB AT 10KHz

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TEMPERATURE RANGE: -40°C TO 125°C

DESCRIPTION

The LDS3985 provides up to 300mA, from 2.5V to

6V input voltage.

It is stable with ceramic and high quality tantalum

capacitor.

The

ultra

low

drop-voltage,

low

quiescent current and low noise makes it suitable

for low power applications and in battery powered

systems. Regulator ground current increases only

slightly in dropout, further prolonging the battery

life. Shutdown Logic Control function is available,

this means that when the device is used as local

regulator, it is possible to put a part of the board in

standby, decreasing the total power consumption.

Typical applications are in mobile phone and

similar

battery

powered

wireless

systems,

portable information appliances.

LDS3985

SERIES

ULTRA LOW DROP-LOW NOISE BICMOS 300mA V.REG.

FOR USE WITH VERY LOW ESR OUTPUT CAPACITOR

Figure 1: Schematic Diagram

DFN6

SOT23-5L

Rev. 1

Số phần tương tự - LDS3985M22R

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	LDS3985M22R	462Kb / 20P	Ultra low drop-low noise BiCMOS 300 mA voltage regulator for use with very low ESR output capacitor 29-Jul-2010

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nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
National Semiconductor ...	LP2985	478Kb / 21P	Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator Designed for Use with Very Low ESR Output Capacitors
STMicroelectronics	LD3985	393Kb / 14P	ULTRA LOW DROP-LOW NOISE BICMOS VOLTAGE REGULATORS LOW ESR CAPACITORS COMPATIBLE 27-Oct-2004
	LD3986	230Kb / 12P	DUAL ULTRA LOW DROP-LOW NOISE BICMOS VOLTAGE REG. FOR USE WITH VERY LOW ESR OUT. CAPACITORS 22-Sep-2005
	LD3985XX	552Kb / 22P	Ultra low drop-low noise BiCMOS voltage regulators low ESR capacitors compatible 03-Jan-2011
National Semiconductor ...	LP2978	286Kb / 8P	Micropower SOT, 50 mA Low-Noise Ultra Low-Dropout Regulator Designed for Use with Very Low ESR Output Capacitors
STMicroelectronics	LDS3985XX	462Kb / 20P	Ultra low drop-low noise BiCMOS 300 mA voltage regulator for use with very low ESR output capacitor 29-Jul-2010
Unisonic Technologies	LD2985	353Kb / 23P	VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR LOW ESR CAP
	LD2985	353Kb / 23P	VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR LOW ESR CAP.
	LD2985	292Kb / 15P	VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR LOW ESR CAP. COMPATIBLE
	LD1985	459Kb / 9P	VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR LOW ESR CAP.COMPATIBLE, WITH INHIBIT FUNCTION

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