Datasheet > LP2951CD-3.3

LP2951CD-3.3

更新时间： 2024-09-20 22:09:31

品牌	Logo	应用领域
安森美 - ONSEMI		稳压器调节器光电二极管输出元件
页数	文件大小	规格书
16页	291K
描述
Micropower Voltage Regulators

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数据手册
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LP2951CD-3.3 数据手册

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 µA and are capable of supplying

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

limiting protection is provided.

http://onsemi.com

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.

TO–92

Z SUFFIX

CASE 29

Pin: 1. Output

2. Ground

3. Input

DPAK

DT SUFFIX

CASE 369A

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, SO–8 and Micro–8 surface mount packages.

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

±0.5%.

PIN CONNECTIONS

Pin: 1. Input

2. Ground

3. Output

(Top View)

Heatsink surface (shown as terminal 4 in

case outline drawing) is connected to Pin 2.

LP2950 and LP2951 Features:

• Low Quiescent Bias Current of 75 µA

SO–8

D SUFFIX

CASE 751

• Low Input–to–Output Voltage Differential of 50 mV at 100 µA and

380 mV at 100 mA

• 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 µF Output Capacitor for Stability

• Internal Current and Thermal Limiting

LP2951 Additional Features:

N SUFFIX

CASE 626

• Error Output Signals an Out of Regulation Condition

• Output Programmable from 1.25 V to 29 V

Micro–8

DM SUFFIX

CASE 846A

• Logic Level Shutdown Input

(See Following Page for Device Information.)

PIN CONNECTIONS

Output

Sense

Input

Feedback

Shutdown

Gnd

V Tap

Error Output

(Top View)

ORDERING INFORMATION

Seedetailedorderingandshippinginformationinthepackage

dimensions section on page 13 of this data sheet.

Semiconductor Components Industries, LLC, 1999

Publication Order Number:

October, 1999 – Rev. 5

LP2950/D

12 3 4 5 6 7...16

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LP2951CD-3.3 替代型号

型号	品牌	替代类型	描述	数据表
LP2951CD-3.3R2G	ONSEMI	完全替代	100 mA, Low Power Low Dropout Voltage Regulator
LP2951CD-3.3G	ONSEMI	完全替代	100 mA, Low Power Low Dropout Voltage Regulator

与LP2951CD-3.3相关器件

型号	品牌	获取价格	描述	数据表
LP2951CD-3.3G	ONSEMI	获取价格	100 mA, Low Power Low Dropout Voltage Regulator
LP2951CD-3.3R2	MOTOROLA	获取价格	FIXED POSITIVE LDO REGULATOR, 0.45V DROPOUT, PDSO8, PLASTIC, SO-8
LP2951CD-3.3R2G	ONSEMI	获取价格	100 mA, Low Power Low Dropout Voltage Regulator
LP2951CD5	MOTOROLA	获取价格	Regulator, 1 Output, BIPolar, PDSO8,
LP2951CD-5	ETC	获取价格	Fixed & Adjustable Voltage Regulator
LP2951CD-5.0	MOTOROLA	获取价格	FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.45V DROPOUT, PDSO8, PLASTIC, SO-8
LP2951CD-5R2	ONSEMI	获取价格	Micropower Voltage Regulators
LP2951CDG	ONSEMI	获取价格	100 mA, Low Power Low Dropout Voltage Regulator
LP2951CDICE	TI	获取价格	1.24 V-29V ADJUSTABLE POSITIVE LDO REGULATOR, 0.6V DROPOUT, UUC, DIE
LP2951CDM	ONSEMI	获取价格	Micropower Voltage Regulators

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