Bel Fuse Inc.

206 Van Vorst Street, Jersey City, NJ 07302

• Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

NON-ISOLATED DC/DC CONVERTERS

5.4 Vdc - 13.2 Vdc Input

1.0 Vdc - 5.0 Vdc Output / 20 A

•

Non-Isolated

•

Wide Input

•

OCP/SCP/OVP

•

Remote Sense

•

Low Profile Package

•

Under-Voltage Lockout

•

Remote On/Off (Active High)

(UVLO)

Description

The Bel SRDB-20ExxH is part of the non-isolated dc/dc converter Power Module series. The modules use a DIP

package for ease of layout and space savings. The output is closely regulated and the efficiency of 5 Vdc output

module is typically 94% at full load.

Part Selection

Output

Voltage

Input Voltage

Max. Output

Current

Max. Output

Power

Typical

Efficiency

Model Number

5.0 V

8.0 V - 13.2 V

20 A

100 W

94%

SRDB-20E50H

3.3 V

5.8 V - 13.2 V

20 A

66 W

92%

SRDB-20E33H

2.5 V

5.4 V - 13.2 V

20 A

50 W

91%

SRDB-20E25H

1.8 V

5.4 V - 13.2 V

20 A

36 W

88%

SRDB-20E18H

1.5 V

5.4 V - 13.2 V

20 A

30 W

87%

SRDB-20E15H

1.2 V

5.4 V - 13.2 V

20 A

24 W

85%

SRDB-20E12H

1.0 V

5.4 V - 13.2 V

20 A

20 W

84%

SRDB-20E10H

Notes:

1. Add “R” suffix at the end of the model number to indicate “Reel Packaging”, and “G” for “Tray

Packaging”.

2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part

numbers.

Absolute Maximum Ratings

Parameter

Min

Typ

Max

Notes

Input Voltage (continuous)

-0.3 V

-

16 V

Output Enable Terminal Voltage

-0.3 V

-

16 V

Ambient Temperature

-40

°C

-

85

°C

Storage Temperature

-40

°C

-

125

°C

Input Specifications

Parameter

Min

Typ

Max

Notes

Input Voltage

Vo=5.0 V

Vo=3.3 V

Vo=1.0-2.5 V

8 V

5.8 V

5.4 V

-

-

-

13.2 V

13.2 V

13.2 V

Input Current (full load)

-

-

-

-

-

-

-

-

-

-

-

-

-

-

15.1 A

14.1 A

13.3 A

10.4 A

8.4 A

6.9 A

5.9 A

SRDB-20ExxH Series

RoHS Compliant

Rev.A