LP3874EMP-ADJ National Semiconductor, LP3874EMP-ADJ Datasheet

LP3874EMP-ADJ

Manufacturer Part Number

LP3874EMP-ADJ

Description

Manufacturer

National Semiconductor

Datasheets

1.LP3874ET-ADJ.pdf (15 pages)

2.LP3874EMP-2.5.pdf (18 pages)

3.LP3874EMPX-ADJ.pdf (15 pages)

Specifications of LP3874EMP-ADJ

Case

TO-223-5

Date_code

08+

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

LP3874EMP-ADJ

Manufacturer:

NS/国半

Quantity:

20 000

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LP3874-ADJ

0.8A Fast Ultra Low Dropout Linear Regulators

General Description

The LP3874-ADJ fast ultra low-dropout linear regulators op-

erate from a +2.5V to +7.0V input supply. These ultra low

dropout linear regulators respond very quickly to step

changes in load, which makes them suitable for low voltage

microprocessor applications. The LP3874-ADJ is developed

on a CMOS process which allows low quiescent current

operation independent of output load current. This CMOS

process also allows the LP3874-ADJ to operate under ex-

tremely low dropout conditions.

Dropout Voltage: Ultra low dropout voltage; typically 24mV

at 80mA load current and 240mV at 0.8A load current.

Ground Pin Current: Typically 6mA at 0.8A load current.

Shutdown Mode: Typically 10nA quiescent current when

the shutdown pin is pulled low.

Adjustable Output Voltage: The output voltage may be

programmed via two external resistors.

Typical Application Circuit

*See Application Hints

DS200745

Features

n Ultra low dropout voltage

n Low ground pin current

n Load regulation of 0.04%

n 10nA quiescent current in shutdown mode

n Guaranteed output current of 0.8A DC

n Available in TO-263, TO-220 and SOT-223 packages

n Minimum output capacitor requirements

n Overtemperature/overcurrent protection

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

Applications

n Microprocessor power supplies

n GTL, GTL+, BTL, and SSTL bus terminators

n Power supplies for DSPs

n SCSI terminator

n Post regulators

n High efficiency linear regulators

n Battery chargers

n Other battery powered applications

20074545

October 2006

www.national.com

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