LP2951 datasheet(1/30 Pages) MICROCHIP

tên linh kiện	LP2951

Giải thích chi tiết về linh kiện	100 mA Low-Dropout Voltage Regulator

PDF	30 Pages

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nhà sản xuất	MICROCHIP [Microchip Technology]

Trang chủ	http://www.microchip.com

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DS20005736B-page 1

LP2951

Features

• High Accuracy 5V, Guaranteed 100 mA Output

• Extremely Low Quiescent Current

• Low-Dropout Voltage

• Extremely Tight Load and Line Regulation

• Very Low Temperature Coefficient

• Use as Regulator or Reference

• Needs Only 1 μF for Stability

• Current and Thermal Limiting

• Error Flag Warns of Output Dropout

• Logic-Controlled Electronic Shutdown

• Output Programmable from 1.24V to 29V

Applications

• Automotive Electronics

• Voltage Reference

• Avionics

General Description

The LP2951 is micropower voltage regulators with very

low dropout voltage (typically 40 mV at light loads and

380 mV at 100 mA), and very low quiescent current

(75 μA typical). The quiescent current of the LP2951

increases only slightly in dropout, thus prolonging

battery life. This feature, among others, makes the

LP2951 ideally suited for use in battery-powered

systems.

Available system functions, such as programmable

output voltage and logic-controlled shutdown, are

available as well.

Additional features available with the LP2951 also

include an error flag output that warns of a low output

voltage, which is often due to failing batteries on the

input. This may also be used as a power-on reset. A

logic-compatible shutdown input is also available which

enables the regulator to be switched on and off. This

part may also be pin-strapped for a 5V output, or

programmed from 1.24V to 29V with the use of two

external resistors.

The LP2951 is available as either a -02 or -03 version.

The -02 and -03 versions are guaranteed for junction

temperatures from -40°C to +125°C; the -02 version

has a tighter output and reference voltage specification

range over temperature.

The LP2951 have a tight initial tolerance (0.5% typical),

a very low output voltage temperature coefficient which

allows use as a low-power voltage reference, and

extremely good load and line regulation (0.05%

typical). This greatly reduces the error in the overall

circuit, and is the result of careful design techniques

and process control.

Package Types

LP2951

DIP & SOIC

Top View

1

2

3

4

8

7

6

5

OUTPUT

SENSE

SHUTDOWN

GROUND

ERROR

5V TAP

FEEDBACK

INPUT

* See MIC2950 for a part with: 1) higher output

(150 mA), 2) transient protection (60V), and 3) reverse

input protection to –20V.

100 mA Low-Dropout Voltage Regulator

Số phần tương tự - LP2951

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
National Semiconductor ...	LP2951	1Mb / 26P	Series of Adjustable Micropower Voltage Regulators
Semtech Corporation	LP2951	67Kb / 3P	150mA ADJUSTABLE VOLTAGE REGULATOR
Advanced Monolithic Sys...	LP2951	142Kb / 14P	100mA LOW DROPOUT VOLTAGE REGULATOR
Fairchild Semiconductor	LP2951	46Kb / 10P	Adjustable Micro Power Voltage Regulator
Calogic, LLC	LP2951	140Kb / 10P	100mA Low Dropout Voltage Regulators

More results

Mô tả tương tự - LP2951

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Unisonic Technologies	UTCLP2950	159Kb / 7P	100 mA LOW-DROPOUT VOLTAGE REGULATOR
List of Unclassifed Man...	AMC2951	226Kb / 8P	100 MA LOW DROPOUT VOLTAGE REGULATOR
ON Semiconductor	LP2950	194Kb / 24P	100 mA, Low Power Low Dropout Voltage Regulator December, 2006 ??Rev. 19
Unisonic Technologies	LP2950	95Kb / 7P	100 mA LOW-DROPOUT VOLTAGE REGULATOR
Unisonic Technologies	LP2950	294Kb / 7P	100 mA LOW-DROPOUT VOLTAGE REGULATOR
ON Semiconductor	LP2951ACDR2G	257Kb / 24P	100 mA, Low Power Low Dropout Voltage Regulator September, 2011 ??Rev. 25
	LP2951CDG	277Kb / 22P	100 mA, Low Power Low Dropout Voltage Regulator April, 2013 ??Rev. 26
	LP2951ACDG	277Kb / 22P	100 mA, Low Power Low Dropout Voltage Regulator April, 2013 ??Rev. 26
E-Tech Electronics LTD	LP2950-2951	294Kb / 7P	100 mA LOW-DROPOUT VOLTAGE REGULATOR
SHANGHAI BELLING CO., L...	BL2950	711Kb / 9P	100 mA Low-Dropout Voltage Regulator

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