1

s Overview

The AN7900T/AN7900F series is 3-pin fixed negative

output type monolithic voltage regulators.

A stabilized fixed negative output voltage is obtained from

an unstable DC input voltage without using any external

parts. Eleven types of fixed output voltage are available

from –5V through –10V, –12V, –15V, –18V, –20V, and

–24V. They can be used widely as power circuits with a

current capacitance of up to 1A.

s Features

• No external components

• Output voltage : –5V, –6V, –7V, –8V, –9V, –10V,

–12V, –15V, –18V, –20V, –24V

• Overcurrent limit circuit built-in

• Thermal over-load protection built-in

• Area of safe operation (ASO) circuit built-in

AN7900T/AN7900F Series

3-pin Negative Output Voltage Regulators (1A Type)

s Block Diagram

1

3

2

Common

Output

Input

Starter

Voltage

Reference

Error Amp.

+

–

Pass Tr.

Current

Limiter

Thermal

Protection

Unit : mm

AN7900F Series

1.4

±0.2

TO-220 Full Pack Package (HSIP003-P-0000A)

10.5

±0.3

2.77

±0.3

(1.73)

12

3

ø5.3

ø3.1

±0.1

(4.3)

2.5

±0.25

4.5

±0.3

1 : Common

2 : Input

3 : Output

2.0

±0.25

0.8

±0.2

(0.4)

2.54

0.4

+0.1

– 0.05

Unit : mm

AN7900T Series

10.4

±0.5

1.4

±0.1

1.4

±0.25

ø3.7

10.5

±0.5

2.54

0.45

1 : Common

2 : Input

3 : Output

2.5

±0.25

+0.1

– 0.05

123

4.5

±0.3

JEDEC: TO-220AB (HSIP003-P-0000)

0.8

±0.2