Datasheet > LP38691SD-ADJ

LP38691SD-ADJ

更新时间： 2024-10-01 22:10:23

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
13页	749K
描述
500mA Low Dropout CMOS Linear Regulators with Adjustable Output / Stable with Ceramic Output Capacitors

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LP38691SD-ADJ 数据手册

PRELIMINARY

January 2005

LP38691-ADJ/LP38693-ADJ

500mA Low Dropout CMOS Linear Regulators with

Adjustable Output

Stable with Ceramic Output Capacitors

General Description

The LP38691/3-ADJ low dropout CMOS linear regulators

provide 2.0% precision reference voltage, extremely low

Features

n Output voltage range of 1.25V - 9V

n 2.0% adjust pin voltage accuracy (25˚C)

dropout voltage (250mV 500mA load current, V_OUT= 5V)

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

and excellent AC performance utilizing ultra low ESR ce-

ramic output capacitors.

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

n Thermal overload protection

The low thermal resistance of the LLP and SOT-223 pack-

ages 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.

n Foldback current limiting

n SOT-223 and 6-Lead LLP packages

n Enable pin (LP38693-ADJ)

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

Applications

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

Adjust Pin Voltage: 2.0% (25˚C) accuracy.

n Hard Disk Drives

n Notebook Computers

n Battery Powered Devices

n Portable Instrumentation

Typical Application Circuits

20126801

20126802

V_OUT= V_ADJx (1 + R1/R2)

Note: *Minimum value required for stability.

DS201268

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与LP38691SD-ADJ相关器件

型号	品牌	获取价格	描述	数据表
LP38691SD-ADJ/NOPB	TI	获取价格	500-mA, 10-V, adjustable low-dropout voltage regulator 6-WSON -40 to 125
LP38691SDX-1.8	TI	获取价格	LP38693 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
LP38691SDX-1.8	NSC	获取价格	500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
LP38691SDX-1.8/NOPB	TI	获取价格	500mA、10V、低压降稳压器 \| NGG \| 6 \| -40 to 125
LP38691SDX-2.5	TI	获取价格	LP38693 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
LP38691SDX-2.5	NSC	获取价格	500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
LP38691SDX-3.3	NSC	获取价格	500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
LP38691SDX-3.3	TI	获取价格	LP38693 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
LP38691SDX-3.3/NOPB	TI	获取价格	500mA、10V、低压降稳压器 \| NGG \| 6 \| -40 to 125
LP38691SDX-5.0	NSC	获取价格	500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors