HI-SINCERITY

MICROELECTRONICS CORP.

Spec. No. : Preliminary Data

Issued Date : 1998.08.01

Revised Date : 2001.07.20

Page No. : 1/3

H7809AI, H7809BI

HSMC Product Specification

H7809AI

H7809BI

3-TERMINAL POSITIVE VOLTAGE REGULATOR

Description

The H7809_I series of three-terminal positive regulators are available

in the TO-251 package and with several fixed output voltages, making

it useful in a wide range of applications. These regulators can provide local on-card regulation,

eliminating the distribution problems associated with single point regulation. Each type employs

internal current limiting, thermal shut-down and safe operating area protection, making it essent-

ially 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.

H7809_I is characterized for operation from 0

°C to +125°C, and if operating temperature will al-

ways hi, please refer the power dissipation curve.

°C)

• Input Voltage.......................................................................... 35 V (5V Through 9V), 40 V (24V)

• Total Power Dissipation ............................................................................................Internal limit

• Operating Temperature Range ...............................................................................0°C to +70°C

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

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

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

Typical Application

Schematic Diagram

H7809_I

Vout

Vin

3

1

2

C1

C2

Note :

C1 and C2 are required if regulator is

located far from power supply filter

and load, or oscillation may induced

on the loop.

6.3V

3.4K

200

10K

200

1K

2K

0.3

26

4K

20pF

4K

1K

12.1K

1.2

26

1.9K

30K

VREF

Input

Output

GND