TS7900A Series

3-Terminal Fixed Negative Voltage Regulator

1/11

Version: A07

TO-220

ITO-220

TO-263

(D

General Description

The TS7900A series of fixed output negative voltage regulators are intended as complements to the popular

TS7800A series device. These negative regulators are available in the same seven-voltage options as the TS7900A

devices. In addition, one extra voltage option commonly employed in MECL systems is also available in the negative

TS7900A Series. Available in fixed output voltage options from -5.0 to -24 volts, these regulators employ current

limiting, thermal shutdown, and safe-area compensation--making them remarkably rugged under most operating

conditions. With adequate heat sinking they can deliver output currents in excess of 1 ampere.

This series is offered in 3-pin TO-220, ITO-220 & TO-263 package.

Features

●

Output Voltage Range -5 to -24V

●

Output current up to 1A

●

No external components required

●

Internal thermal overload protection

●

Internal short-circuit current limiting

●

Output transistor safe-area compensation

Ordering Information

Part No.

Package

Packing

TS79xxACZ C0

TO-220

50pcs / Tube

TS79xxACI C0

ITO-220

50pcs / Tube

TS79xxACM RN

TO-263

800pcs / 13” Reel

Note: Where xx denote voltage option

Standard Application Circuit

Parameter

Symbol

Limit

Unit

Input Voltage

-35

V

Input Voltage

-40

V

Power Dissipation

Internal Limited

W

Operating Junction Temperature

0~+125

Storage Temperature Range

-65~+150

Note: * TS7905A to TS7918A

** TS7924A

*** Follow the derating curve

A common ground is required between the input and the

output voltages. The input voltage must remain typically

2.0V above the output voltage even during the low point on

the Input ripple voltage.

XX = these two digits of the type number indicate voltage.

* = Cin is required if regulator is located an appreciable

distance from power supply filter.

** = Co is not needed for stability; however, it does improve

transient response.

Pin Definition:

1. Ground

2. Input (tab)

3. Output