Datasheet > LP3883ES-1.8

LP3883ES-1.8

更新时间： 2024-09-25 22:14:07

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器调节器输出元件
页数	文件大小	规格书
12页	366K
描述
3A Fast-Response Ultra Low Dropout Linear Regulators

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LP3883ES-1.8 数据手册

August 2003

LP3883

3A Fast-Response Ultra Low Dropout Linear Regulators

General Description

Features

n Ultra low dropout voltage (210 mV 3A typ)

The LP3883 is a high-current, fast-response regulator which

can maintain output voltage regulation with minimum input to

output voltage drop. Fabricated on a CMOS process, the

device operates from two input voltages: Vbias provides

voltage to drive the gate of the N-MOS power transistor,

while Vin is the input voltage which supplies power to the

load. The use of an external bias rail allows the part to

operate from ultra low Vin voltages. Unlike bipolar regula-

tors, the CMOS architecture consumes extremely low quies-

cent current at any output load current. The use of an

n Low ground pin current

n Load regulation of 0.04%/A

n 60 nA typical quiescent current in shutdown

n 1.5% output accuracy (25˚C)

n TO-220, TO-263 packages

n Over temperature/over current protection

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

N-MOS power transistor results in wide bandwidth, yet mini- Applications

mum external capacitance is required to maintain loop sta-

bility.

n DSP Power Supplies

n Server Core and I/O Supplies

n Linear Power Supplies for PC Add-in-Cards

n Set-Top Box Power Supplies

n Microprocessor Power Supplies

n High Efficiency Linear Power Supplies

n SMPS Post-Regulators

The fast transient response of these devices makes them

suitable for use in powering DSP, Microcontroller Core volt-

ages and Switch Mode Power Supply post regulators. The

parts are available in TO-220 and TO-263 packages.

Dropout Voltage: 210 mV (typ) 3A load current.

Ground Pin Current: 3 mA (typ) at full load.

Shutdown Current: 60 nA (typ) when S/D pin is low.

Precision Output Voltage: 1.5% room temperature accu-

racy.

Typical Application Circuit

20062401

At least 4.7 µF of input and output capacitance is required for stability.

Connection Diagrams

20062402

20062403

TO-220, Top View

TO-263, Top View

DS200624

www.national.com

12 3 4 5 6 7...12

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与LP3883ES-1.8相关器件

型号	品牌	获取价格	描述	数据表
LP3883ES-1.8/NOPB	TI	获取价格	IC VREG 1.8 V FIXED POSITIVE LDO REGULATOR, 0.42 V DROPOUT, PSSO5, TO-263, 5 PIN, Fixed Po
LP3883ESX-1.2	NSC	获取价格	3A Fast-Response Ultra Low Dropout Linear Regulators
LP3883ESX-1.2	TI	获取价格	3A Fast-Response Ultra Low Dropout Linear Regulators
LP3883ESX-1.2/NOPB	TI	获取价格	3A Fast-Response Ultra Low Dropout Linear Regulators
LP3883ESX-1.5	NSC	获取价格	3A Fast-Response Ultra Low Dropout Linear Regulators
LP3883ESX-1.8	NSC	获取价格	3A Fast-Response Ultra Low Dropout Linear Regulators
LP3883ESX-1.8/NOPB	TI	获取价格	1.8V FIXED POSITIVE LDO REGULATOR, 0.42V DROPOUT, PSSO5, TO-263, 5 PIN
LP3883ET-1.2	NSC	获取价格	3A Fast-Response Ultra Low Dropout Linear Regulators
LP3883ET-1.2/NOPB	TI	获取价格	1.216V FIXED POSITIVE LDO REGULATOR, 0.42V DROPOUT, PZFM5, TO-220, 5 PIN
LP3883ET-1.5	NSC	获取价格	3A Fast-Response Ultra Low Dropout Linear Regulators

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