Datasheet > LP2985IM5-3.5

LP2985IM5-3.5

更新时间： 2024-11-05 22:57:35

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
21页	592K
描述
Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator Designed for Use with Very Low ESR Output Capacitors

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LP2985IM5-3.5 数据手册

March 2004

LP2985

Micropower 150 mA Low-Noise Ultra Low-Dropout

Regulator in SOT-23 and micro SMD Packages

Designed for Use with Very Low ESR Output Capacitors

General Description

Features

n Ultra low dropout voltage

The LP2985 is a 150 mA, fixed-output voltage regulator

designed to provide ultra low-dropout and low noise in bat-

tery powered applications.

n Guaranteed 150 mA output current

n Smallest possible size (SOT-23, micro SMD package)

n Requires minimum external components

n Stable with low-ESR output capacitor

™

Using an optimized VIP (Vertically Integrated PNP) pro-

cess, the LP2985 delivers unequalled performance in all

specifications critical to battery-powered designs:

1 µA quiescent current when shut down

Dropout Voltage: Typically 300 mV

150 mA load, and

n Low ground pin current at all loads

n Output voltage accuracy 1% (A Grade)

n High peak current capability

n Wide supply voltage range (16V max)

n Low Z_OUT: 0.3Ω typical (10 Hz to 1 MHz)

n Overtemperature/overcurrent protection

n −40˚C to +125˚C junction temperature range

n Custom voltages available

7 mV 1 mA load.

Ground Pin Current: Typically 850 µA 150 mA load, and

75 µA 1 mA load.

Enhanced Stability: The LP2985 is stable with output ca-

pacitor ESR as low as 5 mΩ, which allows the use of ceramic

capacitors on the output.

Sleep Mode: Less than 1 µA quiescent current when ON/

OFF pin is pulled low.

Smallest Possible Size: SOT-23 and micro SMD packages

use absolute minimum board space.

Applications

n Cellular Phone

Precision Output: 1% tolerance output voltages available

(A grade).

n Palmtop/Laptop Computer

n Personal Digital Assistant (PDA)

n Camcorder, Personal Stereo, Camera

Low Noise: By adding a 10 nF bypass capacitor, output

noise can be reduced to 30 µV (typical).

Multiple voltage options, from 2.5V to 5.0V, are available as

standard products. Consult factory for custom voltages.

Block Diagram

10014001

™

VIP is a trademark of National Semiconductor Corporation.

DS100140

www.national.com

12 3 4 5 6 7...21

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与LP2985IM5-3.5相关器件

型号	品牌	获取价格	描述	数据表
LP2985IM5-3.5/NOPB	TI	获取价格	Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and DSBGA Packages Desig
LP2985IM5-3.5/NOPB	ROCHESTER	获取价格	3.5V FIXED POSITIVE LDO REGULATOR, 0.575V DROPOUT, PDSO5, SOT-23, 5 PIN
LP2985IM5-3.5/NOPB	NSC	获取价格	IC VREG 3.5 V FIXED POSITIVE LDO REGULATOR, 0.575 V DROPOUT, PDSO5, SOT-23, 5 PIN, Fixed P
LP2985IM5-3.6	TI	获取价格	Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and DSBGA Packages Desig
LP2985IM5-3.6	NSC	获取价格	Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator Designed for Use with Very Low ESR
LP2985IM5-3.6/NOPB	TI	获取价格	Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and DSBGA Packages Desig
LP2985IM5-3.8	TI	获取价格	Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and DSBGA Packages Desig
LP2985IM5-3.8	NSC	获取价格	Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator Designed for Use with Very Low ESR
LP2985IM5-3.8/NOPB	NSC	获取价格	IC VREG 3.8 V FIXED POSITIVE LDO REGULATOR, 0.575 V DROPOUT, PDSO5, SOT-23, 5 PIN, Fixed P
LP2985IM5-3.8/NOPB	TI	获取价格	Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and DSBGA Packages Desig

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