HI-SINCERITY

MICROELECTRONICS CORP.

Spec. No. : Preliminary Data

Issued Date : 1998.08.01

Revised Date : 2001.01.30

Page No. : 1/3

H7812AM, H7812BM

HSMC Product Specification

H7812AM

H7812BM

Low Current Positive Voltage Regulator Of Surface Mount Device

Description

The H7812_M series of surface mount device regulators are easy-

to-use devices suitable for multitude of applications that require a

regulated supply of up to 100mA. These regulators feature internal current limiting and thermal

shutdown making them remarkably rugged. No external components are required with the 781-

2_M devices in many applications.

These devices offer a substantial performance advantage over the traditional zener diode

resistor combination, as output impedance and quiescent current are substantially reduced.

• Wide Range Of Available, Fixed Output Voltages

• Internal Short-Circuit Current Limiting

• Internal Thermal Overload Protection

• No External Components Required

°C)

• Input Voltage................................................... 30 V (5V Through 9V), 35 V (12V Through 18V)

• 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).................................................................................. 260 °C

Typical Application

Schematic Diagram

H7812_M

Vout

Vin

1

3

2

C1

C2

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.

Note : C1 and C2 are required if regulator is

located far from power supply filter and load, or

oscillation may induced on the loop

576

3.41K

3.89K

7.8K

2.84K

13K

5pF

2.23K

GND

1.5K

1.9K

100

100

5K

5.7K

Vout

Vin