CYStech Electronics Corp.

Spec. No. : C536E3

Issued Date : 2003.04.08

Revised Date :

Page No. : 1/4

PL7912E3

CYStek Product Specification

3-TERMINAL NEGATIVE VOLTAGE REGULATOR

PL7912XE3

Description

The PL7912XE3 series of three-terminal negative regulators are

available in the TO-220AB package. These regulators can provide

local on-card regulation, eliminating the distribution problems

associated with single point regulation. Each employs internal current

limiting, thermal shutdown and safe operating area protection, making it essentially indestructible.

If adequate heat sinking is provided, they can deliver over 1A output current. Although designed

primarily as fixed voltage regulators, these devices can be used with external components to

obtain adjustable voltages and currents.

PL7912XE3 is characterized for operation from 0

°C to +125°C, and if operating temperature is

always high, please refer to the power dissipation curve.

• Input Voltage ...................................................................................................................... -35 V

• Total Power Dissipation .................................................................................... Internally limited

• Operating Junction Temperature ....................................................................... 0 °C to +125 °C

• Maximum Junction Temperature ..................................................................................... 125 °C

• Storage Temperature Range .......................................................................... -55 °C to +150 °C

• Lead Temperature (Soldering 10S) ................................................................................. 230 °C

Typical Application

Schematic Diagram

TO-220AB

3

2

1

PL7912

Vout

Vin

C1

C2

Note:

Bypass Capacitors are

recommended for optimum stability

and transient response and should

be located as close as possible to

the regulator.

1.4k

7K

15K

Vin

750

1K

6K

20K

20K

20K

20pF

5K

10pF

600

15K

20K

3K

10K

6.2V

150

0.2

Vout

5K

4K

GND