Datasheet > LM2931~1

LM2931~1

更新时间： 2022-01-21 23:28:00

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LM2931~1 数据手册

Order this document by LM2931/D

LOW DROPOUT

VOLTAGE REGULATORS

The LM2931 series consists of positive fixed and adjustable output

voltage regulators that are specifically designed to maintain proper

regulation with an extremely low input–to–output voltage differential. These

devices are capable of supplying output currents in excess of 100 mA and

feature a low bias current of 0.4 mA at 10 mA output.

FIXED OUTPUT VOLTAGE

Z SUFFIX

Designed primarily to survive in the harsh automotive environment, these

devices will protect all external load circuitry from input fault conditions

caused by reverse battery connection, two battery jump starts, and

excessive line transients during load dump. This series also includes internal

current limiting, thermal shutdown, and additionally, is able to withstand

temporary power–up with mirror–image insertion.

PLASTIC PACKAGE

Pin 1. Output

CASE 29

2. Ground

3. Input

Due to the low dropout voltage and bias current specifications, the

LM2931 series is ideally suited for battery powered industrial and consumer

equipment where an extension of useful battery life is desirable. The ‘C’

suffix adjustable output regulators feature an output inhibit pin which is

extremely useful in microprocessor–based systems.

T SUFFIX

PLASTIC PACKAGE

CASE 221A

Pin 1. Input

2. Ground

3. Output

Heatsink surface

connected to Pin 2.

• Input–to–Output Voltage Differential of < 0.6 V @ 100 mA

• Output Current in Excess of 100 mA

• Low Bias Current

• 60 V Load Dump Protection

• –50 V Reverse Transient Protection

• Internal Current Limiting with Thermal Shutdown

• Temporary Mirror–Image Protection

DT SUFFIX

PLASTIC PACKAGE

CASE 369A

DT–1 SUFFIX

PLASTIC PACKAGE

CASE 369

• Ideally Suited for Battery Powered Equipment

• Economical 5–Lead TO–220 Package with Two Optional Leadforms

(DPAK)

• Available in Surface Mount SOP–8, D PAK and DPAK Packages

D2T SUFFIX

PLASTIC PACKAGE

CASE 936

(D PAK)

Heatsink surface (shown as terminal 4 in

case outline drawing) is connected to Pin 2.

(See Following Page for Ordering Information.)

ADJUSTABLE OUTPUT VOLTAGE

Pin 1. Adjust

2. Output Inhibit

FIXED

TH SUFFIX

PLASTIC PACKAGE

CASE 314A

3. Ground

4. Input

5. Output

N.C.

Gnd

N.C.

Gnd

Input

Output

(Top View)

TV SUFFIX

PLASTIC PACKAGE

CASE 314B

D SUFFIX

PLASTIC PACKAGE

CASE 751

ADJUSTABLE

(SOP–8)

D2T SUFFIX

Output

Inhibit

PLASTIC PACKAGE

CASE 936A

Adjust

Gnd

T SUFFIX

PLASTC PACKAGE

CASE 314D

Gnd

(D PAK)

Input

Output

Heatsink surface (shown as

terminal 6 in case outline

drawing) is connected to Pin 3.

(Top View)

Heatsink surface connected to Pin 3.

Motorola, Inc. 1995

MOTOROLA ANALOG IC DEVICE DATA

Rev 3

12 3 4 5 6 7...16

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