Voltage Regulators

1

Publication date: Jaunuary 2002

SFF00005CEB

AN78Lxx/AN78LxxM Series

3-pin positive output voltage regulator (100 mA type)

I Overview

The AN78Lxx series and the AN78LxxM series are 3-

pin fixed positive output type monolithic voltage regula-

tor.

A stabilized fixed output voltage is obtained from an

unstable DC input voltage without using any external

parts. 12 types of fixed output voltage are available; 4V,

5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V and 24V.

They can be used widely as power circuits with a current

capacity of up to 100mA.

I Features

• No external components

• Output voltage: 4V, 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V,

18V, 20V, 24V

• Built-in overcurrent limit circuit

• Built-in thermal overload protection circuit

SSIP003-P-0000

AN78Lxx series

Unit: mm

AN78LxxM series

Unit: mm

I Block Diagram (AN78Lxx series)

1: Output

2: Common

3: Input

1: Input

2: Output

3: Common

HSIP003-P-0000B

5.0±0.2

4.0±0.2

2.3±0.2

0.6±0.15

–0.05

2.54

–0.05

21

3

1.6 max.

1.8 max.

4.6 max.

3.0

1.5

1.5

32

1

0.48 max.

0.58 max.

0.44 max.

1

2

3

Input

(3)

Pass Tr

Output

(1)

Common

(2)

Starter

Voltage

Reference

Current

Source

Error Amp.

+

−

Thermal

Protection

Current

Limiter

Note) The number in ( ) shows the pin number for the AN78LxxM series.

Note) The packages (SSIP003-P-0000 and HSIP003-

P-0000B) of this product will be changed to

lead-free type (SSIP003-P-0000S and

HSIP003-P-0000Q). See the new package di-

mensions section later of this datasheet.