DESCRIPTION

The FGM7632 is a multi-output positive voltage regulator

designed to provide fixed precision output voltages of 3.3V, 8V

at current up to 0.5A and 5.1V at current up to 1A with external

PNP transistor. An internal reset circuit generates a reset pulse

when the output 1 decrease below the regulated value. Output2

& 3 can be disabled by TTL input. Protection features include over

voltage protection, short circuit protection and thermal shutdown.

FEATURES

•

Output Currents up to 0.5A (output1 & 2)

•

Output Current up to 1A with External Transistor (output3)

•

Fixed Precision Output 1 voltage 3.3V

±2 %

•

Fixed Precision Output 2 voltage 8V

±2 %

•

Control Signal Generator for Output 3 voltage (5.1V

±2 %)

•

Reset Facility for Output Voltage1

•

Output 2,3 with Disable by TTL Input

•

Current Limit Protection at Each Output

•

Thermal Shut Down

Internal Block Diagram

10-SIP H / S

2

Bandgap

Reference

1

Vin1

Vin2

0VP

Vin1

+

-

2.5V

SCP

9

50mV

Thermal

Shut Down

0VP

-

+

SCP

8

Output 1

Output 2

1.4V

Output 2,3

+

-

Disable

4

5

GND

SCP

SW

10

µA

-

+

3

6

7

10

DEL.CAP

RESET

Output 3

Cd

100nF

Vsys

10K

Control

A614　

-

+

Vin2