LP2951ACD33R2G ON Semiconductor, LP2951ACD33R2G Datasheet

LP2951ACD33R2G

Manufacturer Part Number

LP2951ACD33R2G

Description

SOP-8

Manufacturer

ON Semiconductor

Datasheet

1.LP2950CDT50RKG.pdf (23 pages)

Specifications of LP2951ACD33R2G

Date_code

09+

Current page: 1 of 23
Download datasheet (241Kb)

LP2950, LP2951, NCV2951

100 mA, Low Power Low

Dropout Voltage Regulator

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.

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.

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%.

Features

•

LP2951 Additional Features

•

May, 2008 − Rev. 21

The LP2950 and LP2951 are micropower voltage regulators that are

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

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

380 mV at 100 mA

and Control Changes

Low Quiescent Bias Current of 75 mA

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

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

Pb−Free Packages are Available

NCV Prefix for Automotive and Other Applications Requiring Site

Error Output Signals an Out of Regulation Condition

Output Programmable from 1.25 V to 29 V

Logic Level Shutdown Input

(See Following Page for Device 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.

STRAIGHT LEAD

ORDERING & MARKING INFORMATION

1 2

CASE 369C

DT SUFFIX

BULK PACK

case outline drawing) is connected to Pin 2.

Heatsink surface (shown as terminal 4 in

Shutdown

DPAK

Output

Sense

DM SUFFIX

CASE 846A

GND

CASE 751

CASE 626

D SUFFIX

N SUFFIX

Micro8E

SOIC−8

PDIP−8

PIN CONNECTIONS

http://onsemi.com

(Top View)

TAPE & REEL

AMMO PACK

(Top View)

BENT LEAD

PIN CONNECTIONS

Publication Order Number:

Input

Feedback

Error Output

Pin: 1. Output

Pin: 1. Input

Tap

Z SUFFIX

CASE 29

TO−92

2. Ground

3. Input

2. Ground

3. Output

LP2950/D

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