NON-ISOLATED DC/DC CONVERTERS
5.4 Vdc - 13.2 Vdc Input
1.0 Vdc - 5.0 Vdc Output / 20 A
SRDB-20ExxH Series
•
•
•
•
Non-Isolated
OCP/SCP/OVP
Low Profile Package
Remote On/Off (Active High)
RoHS Compliant
•
•
•
Wide Input
Remote Sense
Rev.A
Under-Voltage Lockout
(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
5.0 V
3.3 V
2.5 V
1.8 V
1.5 V
1.2 V
1.0 V
Input Voltage
8.0 V - 13.2 V
5.8 V - 13.2 V
5.4 V - 13.2 V
5.4 V - 13.2 V
5.4 V - 13.2 V
5.4 V - 13.2 V
5.4 V - 13.2 V
Max. Output
Current
20 A
20 A
20 A
20 A
20 A
20 A
20 A
Max. Output
Power
100 W
66 W
50 W
36 W
30 W
24 W
20 W
Typical
Efficiency
94%
92%
91%
88%
87%
85%
84%
Model Number
SRDB-20E50H
SRDB-20E33H
SRDB-20E25H
SRDB-20E18H
SRDB-20E15H
SRDB-20E12H
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
Input Voltage (continuous)
Output Enable Terminal Voltage
Ambient Temperature
Storage Temperature
Min
-0.3 V
-0.3 V
-40
°C
-40
°C
Typ
-
-
-
-
Max
16 V
16 V
85
°C
125
°C
Notes
Input Specifications
Parameter
Input Voltage
Vo=5.0 V
Vo=3.3 V
Vo=1.0-2.5 V
Input Current (full load)
V
O
=5.0 V
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=1.0 V
Min
8V
5.8 V
5.4 V
-
-
-
-
-
-
-
Typ
-
-
-
-
-
-
-
-
-
-
Max
13.2 V
13.2 V
13.2 V
15.1 A
14.1 A
13.3 A
10.4 A
8.4 A
6.9 A
5.9 A
Notes
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
•
Tel 201-432-0463
•
Fax 201-432-9542
•
www.belfuse.com
BEL [ BEL FUSE INC. ]
