LP38693 datasheet(1/15 Pages) NSC

部件名	LP38693

功能描述	500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors

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制造商	NSC [National Semiconductor (TI)]

网页	http://www.national.com

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LP38691/LP38693

500mA Low Dropout CMOS Linear Regulators

Stable with Ceramic Output Capacitors

General Description

The LP38691/3 low dropout CMOS linear regulators provide

tight output tolerance (2.0% typical), extremely low dropout

voltage (250 mV @ 500mA load current, V

OUT = 5V), and

excellent 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: 250 mV (typ) @ 500mA (typ. 5V out).

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

Precision Output Voltage: 2.0% (25˚C) accuracy.

Features

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2.0% output accuracy (25˚C)

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Low dropout voltage: 250 mV @ 500mA (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 (LP38693)

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

20126501

20126502

Note: * Minimum value required for stability.

**LLP package devices only.

PRELIMINARY

January 2005

DS201265

www.national.com

类似零件编号 - LP38693

制造商	部件名	数据表	功能描述
Texas Instruments	LP38693	1Mb / 27P	LP38693 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
	LP38693	1Mb / 27P	LP38693 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
	LP38693	1Mb / 27P	500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
	LP38693	1Mb / 27P	LP38693 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
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类似说明 - LP38693

制造商	部件名	数据表	功能描述
National Semiconductor ...	LP38691-ADJ	750Kb / 13P	500mA Low Dropout CMOS Linear Regulators with Adjustable Output / Stable with Ceramic Output Capacitors
National Semiconductor ...	LP38691-ADJ	399Kb / 14P	500mA Low Dropout CMOS Linear Regulators with Adjustable Output Stable with Ceramic Output Capacitors
Texas Instruments	LP38692MP-3.3	1Mb / 28P	1A Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
	LP38691SD-3.3	1Mb / 27P	LP38693 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
	LP38691DTX-5.0	1Mb / 27P	LP38693 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
	LP38693MP-5	1Mb / 27P	LP38693 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
	LP38693SD-ADJ	1Mb / 22P	LP38693-ADJ 500mA Low Dropout CMOS Linear Regulators with Adjustable Output Stable with Ceramic Output Capacitors
	LP38691SD-3.3	1Mb / 27P	500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
	LP38693MP-5.0	1Mb / 27P	LP38693 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
	LP38691-ADJ	1Mb / 22P	500mA Low Dropout CMOS Linear Regulators with Adjustable Output Stable with Ceramic Output Capacitors