LP38693MP-5.0/NOPB

更新时间： 2024-11-23 13:09:27

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器电容器
页数	文件大小	规格书
15页	791K
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数据手册

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LP38693MP-5.0/NOPB 数据手册

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PRELIMINARY

January 2005

LP38691/LP38693

500mA Low Dropout CMOS Linear Regulators

Stable with Ceramic Output Capacitors

General Description

Features

n 2.0% output accuracy (25˚C)

The LP38691/3 low dropout CMOS linear regulators provide

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

n Low dropout voltage: 250 mV 500mA (typ, 5V out)

n Wide input voltage range (2.7V to 10V)

n Precision (trimmed) bandgap reference

n Guaranteed specs for -40˚C to +125˚C

n 1µA off-state quiescent current

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.

n Thermal overload protection

n Foldback current limiting

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.

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

n Enable pin (LP38693)

Applications

Dropout Voltage: 250 mV (typ) 500mA (typ. 5V out).

n Hard Disk Drives

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

n Notebook Computers

n Battery Powered Devices

n Portable Instrumentation

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

Typical Application Circuits

20126501

20126502

Note: * Minimum value required for stability.

**LLP package devices only.

DS201265

www.national.com

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