LM340 Motorola Inc, LM340 Datasheet

LM340

Manufacturer Part Number

LM340

Description

THREE TERMINAL POSITIVE FIXED VOLTAGE REGULATORS

Manufacturer

Motorola Inc

Datasheet

1.LM340.pdf (20 pages)

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Download datasheet (206Kb)

Three-Terminal Positive

Fixed Voltage Regulators

capable of driving loads in excess of 1.0 A. These three–terminal regulators

employ internal current limiting, thermal shutdown, and safe–area

compensation. Devices are available with improved specifications, including

a 2% output voltage tolerance, on A–suffix 5.0, 12 and 15 V device types.

can be used with external components to obtain adjustable voltages and

currents. This series of devices can be used with a series–pass transistor to

boost output current capability at the nominal output voltage.

* 2% regulators are available in 5, 12 and 15 V devices.

LM340T–5.0

LM340AT–5.0

LM340T–6.0

LM340T–8.0

LM340T–12

LM340AT–12

LM340T–15

LM340AT–15

LM340T–18

LM340T–24

MOTOROLA ANALOG IC DEVICE DATA

This family of fixed voltage regulators are monolithic integrated circuits

Although designed primarily as a fixed voltage regulator, these devices

Output Current in Excess of 1.0 A

No External Components Required

Output Voltage Offered in 2% and 4% Tolerance*

Internal Thermal Overload Protection

Internal Short Circuit Current Limiting

Output Transistor Safe–Area Compensation

Device

Output Voltage

and Tolerance

5.0 V

6.0 V

8.0 V

12 V

15 V

18 V

24 V

ORDERING INFORMATION

Temperature Range

T J = 0 to +125 C

Operating

12 C

Plastic Power

Package

i P

A common ground is required between the input and

the output voltages. The input voltage must remain

typically 1.7 V above the output voltage even during

the low point on the input ripple voltage.

Motorola, Inc. 1996

XX these two digits of the type number indicate

** C O is not needed for stability; however, it does

* C in is required if regulator is located an

Pin 1. Input

0.33 F

voltage.

appreciable distance from power supply filter.

improve transient response. If needed, use a

0.1 F ceramic disc.

PLASTIC PACKAGE

VOLTAGE REGULATORS

Input

Heatsink surface is connected to Pin 2.

C in *

2. Ground

3. Output

CASE 221A

THREE–TERMINAL

T SUFFIX

Simplified Application

POSITIVE FIXED

LM340, A

SEMICONDUCTOR

TECHNICAL DATA

Series

Order this document by LM340/D

LM340–XX

C O **

Output

Rev 1

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