Datasheet > LP2951ACN3.3

LP2951ACN3.3

更新时间： 2024-11-15 12:06:03

品牌	Logo	应用领域
安森美 - ONSEMI		稳压器
页数	文件大小	规格书
22页	253K
描述
100 mA, Low Power Low Dropout Voltage Regulator

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LP2951ACN3.3 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

BENT LEAD

STRAIGHT LEAD

BULK PACK

TAPE & REEL

AMMO PACK

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

DPAK

DT SUFFIX

CASE 369C

(Top View)

Heatsink surface (shown as terminal 4 in

case outline drawing) is connected to Pin 2.

Features

 Low Quiescent Bias Current of 75 mA

SOIC−8

 Low Input−to−Output Voltage Differential of 50 mV at 100 mA 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 mF Output Capacitor for Stability

 Internal Current and Thermal Limiting

D SUFFIX

CASE 751

PDIP−8

N SUFFIX

CASE 626

Micro8E

DM SUFFIX

CASE 846A

 NCV Prefix for Automotive and Other Applications Requiring

Unique Site and Control Change Requirements; AEC−Q100

Qualified and PPAP Capable

 These Devices are Pb−Free and RoHS Compliant

PIN CONNECTIONS

Output

Sense

Input

LP2951 Additional Features

Feedback

 Error Output Signals an Out of Regulation Condition

 Output Programmable from 1.25 V to 29 V

 Logic Level Shutdown Input

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 15 of this data sheet.

See general marking information in the device marking

section on page 17 of this data sheet.

 Semiconductor Components Industries, LLC, 2013

Publication Order Number:

April, 2013 − Rev. 26

LP2950/D

12 3 4 5 6 7...22

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与LP2951ACN3.3相关器件

型号	品牌	获取价格	描述	数据表
LP2951ACN-3.3	NSC	获取价格	Series of Adjustable Micropower Voltage Regulators
LP2951ACN-3.3	ONSEMI	获取价格	Micropower Voltage Regulators
LP2951ACN-3.3	TI	获取价格	Series of Adjustable Micropower Voltage Regulators
LP2951ACN-3.3G	ONSEMI	获取价格	100 mA, Low Power Low Dropout Voltage Regulator
LP2951ACN5	ETC	获取价格	Analog IC
LP2951ACNG	ONSEMI	获取价格	100 mA, Low Power Low Dropout Voltage Regulator
LP2951ACP1	ETC	获取价格	Fixed & Adjustable Voltage Regulator
LP2951ACP1-5	ETC	获取价格	Fixed & Adjustable Voltage Regulator
LP2951ACP-3	ADMOS	获取价格	100mA LOW DROPOUT VOLTAGE REGULATOR
LP2951ACP-33	ADMOS	获取价格	100mA LOW DROPOUT VOLTAGE REGULATOR

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