LP38690 datasheet(1/15 Pages) NSC

部件名	LP38690

功能描述	1A Low Dropout CMOS Linear Regulators

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制造商	NSC [National Semiconductor (TI)]

网页	http://www.national.com

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LP38690/LP38692

1A Low Dropout CMOS Linear Regulators

Stable with Ceramic Output Capacitors

General Description

The LP38690/2 low dropout CMOS linear regulators provide

tight output tolerance (2.5% typical), extremely low dropout

voltage (450mV @ 1A load current, V

OUT = 5V), and excel-

lent AC performance utilizing ultra low ESR ceramic output

capacitors.

The low thermal resistance of the LLP, SOT-223 and T0-252

packages allow the full operating current to be used even in

high ambient temperature environments.

The use of a PMOS power transistor means that no DC base

drive current is required to bias it allowing ground pin current

to remain below 100 µA regardless of load current, input

voltage, or operating temperature.

Dropout Voltage: 450 mV (typ) @ 1A (typ. 5V out).

Ground Pin Current: 55 µA (typ) at full load.

Precision Output Voltage: 2.5% (25˚C) accuracy.

Features

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2.5% output accuracy (25˚C)

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Low dropout voltage: 450mV @ 1A (typ, 5V out)

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Wide input voltage range (2.7V to 10V)

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Precision (trimmed) bandgap reference

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Guaranteed specs for -40˚C to +125˚C

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1µA off-state quiescent current

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Thermal overload protection

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Foldback current limiting

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T0-252, SOT-223 and 6-Lead LLP packages

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Enable pin (LP38692)

Applications

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Hard Disk Drives

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Notebook Computers

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Battery Powered Devices

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Portable Instrumentation

Typical Application Circuits

20126601

20126602

Note: * Minimum value required for stability.

**LLP package devices only.

January 2005

DS201266

www.national.com

类似零件编号 - LP38690

制造商	部件名	数据表	功能描述
Texas Instruments	LP38690	1Mb / 36P	LP38690, LP38692 1-A Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors REVISED DECEMBER 2015
National Semiconductor ...	LP38690-ADJ	777Kb / 13P	1A Low Dropout CMOS Linear Regulators with Adjustable Output Stable with Ceramic Output Capacitors
Texas Instruments	LP38690-ADJ	1Mb / 22P	LP38692-ADJ 1A Low Dropout CMOS Linear Regulators with Adjustable Output Stable with Ceramic Output Capacitors
	LP38690-ADJ	1Mb / 27P	1-A Low Dropout CMOS Linear Regulator
	LP38690-ADJ	1Mb / 27P	1-A Low Dropout CMOS Linear Regulator

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