LP2954AIM National Semiconductor, LP2954AIM Datasheet

LP2954AIM

Manufacturer Part Number

LP2954AIM

Description

IC,VOLT REGULATOR,FIXED/ADJUSTABLE,+5V/+1.24 TO +29V,BIPOLAR,SOP,8PIN,PLASTIC

Manufacturer

National Semiconductor

Datasheets

1.LP2954AIM.pdf (15 pages)

2.LP2954AIM.pdf (13 pages)

3.LP2954AIM.pdf (13 pages)

Specifications of LP2954AIM

Rohs Compliant

Available stocks

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Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LP2954AIM

Manufacturer:

Quantity:

197

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LP2954AIMX/NOPB

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Quantity:

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LP2954/LP2954A

5V and Adjustable Micropower Low-Dropout Voltage

Regulators

General Description

The LP2954 is a 5V micropower voltage regulator with very

low quiescent current (90 µA typical at 1 mA load) and very

low dropout voltage (typically 60 mV at light loads and

470 mV at 250 mA load current).

The quiescent current increases only slightly at dropout

(120 µA typical), which prolongs battery life.

The LP2954 with a fixed 5V output is available in the three-

lead TO-220 and TO-263 packages. The adjustable LP2954

is provided in an 8-lead surface mount, small outline pack-

age. The adjustable version also provides a resistor network

which can be pin strapped to set the output to 5V.

Reverse battery protection is provided.

The tight line and load regulation (0.04% typical), as well as

very low output temperature coefficient make the LP2954

well suited for use as a low-power voltage reference.

Output accuracy is guaranteed at both room temperature

and over the entire operating temperature range.

Package Outline and Ordering

Information

Order Number LP2954AIM or LP2954IM

Order Number LP2954AIT or LP2954IT

SO-8 Small Outline Surface Mount

TO-220 3–Lead Plastic Package

See NS Package M08A

See NS Package T03B

Front View

Top View

DS011128

01112802

01112833

Features

n 5V output within 1.2% over temperature (A grade)

n Adjustable 1.23 to 29V output voltage available

n Guaranteed 250 mA output current

n Extremely low quiescent current

n Low dropout voltage

n Reverse battery protection

n Extremely tight line and load regulation

n Very low temperature coefficient

n Current and thermal limiting

n Pin compatible with LM2940 and LM340 (5V version

n Adjustable version adds error flag to warn of output drop

Applications

n High-efficiency linear regulator

n Low dropout battery-powered regulator

(LP2954IM and LP2954AIM)

only)

and a logic-controlled shutdown

TO-263 3-Lead Plastic Surface-Mount Package

Order Number LP2954AIS or LP2954IS

See NS Package TS3B

Side View

Top View

01112810

01112809

www.national.com

April 2005

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