Voltage Regulators

1

AN78xx/AN78xxF Series

3-pin positive output voltage regulator (1 A type)

I Overview

The AN78xx series and the AN78xxF series are 3-

pin, fixed positive output type monolithic voltage regu-

lators. Stabilized fixed output voltage is obtained from

unstable DC input voltage without using any external

components. 11 types of fixed output voltage are avail-

able; 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, and

24V. They can be used widely in power circuits with cur-

rent capacity of up to 1A.

I Features

• No external components

• Output voltage: 5V,6V,7V,8V,9V,10V,12V,15V,18V,

20V, 24V

• Built-in overcurrent limit circuit

• Built-in thermal overload protection circuit

• Built-in ASO (area of safe operation) protection circuit

HSIP003-P-0000

AN78xx series

Unit: mm

HSIP003-P-0000A

AN78xxF series

Unit: mm

1

3

2

Input

Pass Tr

Output

Common

Starter

Voltage

Reference

Current

Source

Error Amp.

+

−

Thermal

Protection

Current

Limiter

I Block Diagram

2.54 2.54

0.8

(2.0) (2.5)

10.5±0.3

+0.15

–0.05

1.4

+0.15

–0.05

0.45

+0.2

–0.0

(10.35)

4.5±0.2

10.0±0.3

1.4±0.1

φ3.7±0.1

(0.40)

(4.30)

φ5.30

2.54

2

13

(1.73)

−0.05

1: Input

2: Common

3: Output

1: Input

2: Common

3: Output