Datasheet > LP2950

LP2950

更新时间： 2024-11-09 04:44:07

品牌	Logo	应用领域
安森美 - ONSEMI		稳压器
页数	文件大小	规格书
24页	194K
描述
100 mA, Low Power Low Dropout Voltage Regulator

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LP2950 数据手册

LP2950, LP2951, NCV2951

100 mA, Low Power Low

Dropout Voltage Regulator

The LP2950 and LP2951 are micropower voltage regulators that are

specifically designed to maintain proper regulation with an extremely

low input−to−output voltage differential. These devices feature a very

low quiescent bias current of 75 mA and are capable of supplying

output currents in excess of 100 mA. Internal current and thermal

limiting protection is provided.

The LP2951 has three additional features. The first is the Error

Output that can be used to signal external circuitry of an out of

regulation condition, or as a microprocessor power−on reset. The

second feature allows the output voltage to be preset to 5.0 V, 3.3 V or

3.0 V output (depending on the version) or programmed from 1.25 V

to 29 V. It consists of a pinned out resistor divider along with direct

access to the Error Amplifier feedback input. The third feature is a

Shutdown input that allows a logic level signal to turn−off or turn−on

the regulator output.

http://onsemi.com

TO−92

Z SUFFIX

CASE 29

Pin: 1. Output

2. Ground

3. Input

DPAK

DT SUFFIX

CASE 369C

PIN CONNECTIONS

Due to the low input−to−output voltage differential and bias current

specifications, these devices are ideally suited for battery powered

computer, consumer, and industrial equipment where an extension of

useful battery life is desirable. The LP2950 is available in the three

pin case 29 and DPAK packages, and the LP2951 is available in the

eight pin dual−in−line, SOIC−8 and Micro8 surface mount packages.

The ‘A’ suffix devices feature an initial output voltage tolerance

0.5%.

Pin: 1. Input

2. Ground

3. Output

(Top View)

Heatsink surface (shown as terminal 4 in

case outline drawing) is connected to Pin 2.

Features

• Pb−Free Packages are Available

SOIC−8

D SUFFIX

CASE 751

• Low Quiescent Bias Current of 75 mA

• Low Input−to−Output Voltage Differential of 50 mV at 100 mA and

380 mV at 100 mA

PDIP−8

N SUFFIX

CASE 626

• 5.0 V, 3.3 V or 3.0 V 0.5% Allows Use as a Regulator or Reference

• Extremely Tight Line and Load Regulation

• Requires Only a 1.0 mF Output Capacitor for Stability

• Internal Current and Thermal Limiting

Micro8E

DM SUFFIX

CASE 846A

• NCV Prefix for Automotive and Other Applications Requiring Site

and Control Changes

PIN CONNECTIONS

LP2951 Additional Features

Output

Sense

Input

• Error Output Signals an Out of Regulation Condition

• Output Programmable from 1.25 V to 29 V

• Logic Level Shutdown Input

Feedback

Shutdown

GND

Tap

Error Output

(See Following Page for Device Information.)

(Top View)

ORDERING & MARKING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on pages 14 and 16 of this data sheet.

See general marking information in the device marking

section on page 18 of this data sheet.

Semiconductor Components Industries, LLC, 2006

Publication Order Number:

December, 2006 − Rev. 19

LP2950/D

12 3 4 5 6 7...24

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与LP2950相关器件

型号	品牌	获取价格	描述	数据表
LP2950 LP2951	UTC	获取价格	0.1A(Io) Low Dropout Positive Adjustabl...
LP2950_05	UTC	获取价格	100 mA LOW-DROPOUT VOLTAGE REGULATOR
LP2950_06	ONSEMI	获取价格	100 mA, Low Power Low Dropout Voltage Regulator
LP2950_07	SIPEX	获取价格	100mA Low Dropout Voltage Regulators
LP2950_08	TI	获取价格	ADJUSTABLE MICROPOWER VOLTAGE REGULATORS WITH SHUTDOWN
LP2950_08	MICREL	获取价格	100mA Low-Dropout Voltage Regulator
LP2950_09	UTC	获取价格	100 mA LOW-DROPOUT VOLTAGE REGULATOR
LP2950_09	TI	获取价格	ADJUSTABLE MICROPOWER VOLTAGE REGULATORS WITH SHUTDOWN
LP2950_1	ADMOS	获取价格	100mA LOW DROPOUT VOLTAGE REGULATOR
LP2950_1	FCI	获取价格	150mA Low Drop Out Voltage Regulators

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