SRDB-12C1AH Datasheet, PDF (1/9 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS

NON-ISOLATED DC/DC CONVERTERS
3.3 Vdc Input
0.9 Vdc - 2.5 Vdc/12 A Output
SRDB-12C1AH RoHS Compliant
Rev.A
• Non-Isolated
• Fixed frequency (300 kHz)
• Low profile package (8.5 mm)
• Remote Sense
• Remote On/Off (Active High Logic)
• Input Under-voltage Lockout (UVLO)
• OCP/SCP
• Wide Trim Output
Description
The SRDB-12C1AH is part of the low cost non-isolated dc/dc power converter series. The module uses a DIP
package for ease of layout and space savings, with a low profile of 8.5 mm. The output is widely trimmed from
0.9 Vdc to 2.5 Vdc, and the efficiency of 2.5 Vdc output module is typically 92% at full load. Features include
remote sense, remote on/off, short circuit protection, over current protection and input under-voltage lockout.
Part Selection
Output
Input Voltage
Voltage
0.9 V - 2.5 V
3.3 V
Max. Output
Current
12 A
Max. Output
Power
30 W
Typical
Efficiency
92%
Model Number
SRDB-12C1AH
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
Input Voltage (continuous)
-0.3 V
-
7V
Output Enable Terminal Voltage
-0.3 V
-
3.9 V
Ambient Temperature
-40 °C
-
85 °C
Storage Temperature
-55 °C
-
100 °C
Notes
Input Specifications
Parameter
Min
Input Voltage
3V
Input Current (full load)
Vo=2.5 V
-
Vo=1.8 V
-
Vo=1.5 V
-
Vo=1.2 V
-
Vo=1.0 V
-
Vo=0.9 V
-
Input Current (no load)
-
Remote Off Input Current
Input Reflected Ripple Current
(pk-pk)
-
Typ
3.3 V
-
-
-
-
-
-
-
10 mA
80 mA
Max
3.6 V
12.0 A
9.3 A
8.0 A
6.6 A
5.7 A
5.2 A
150 mA
20 mA
160 mA
Input Reflected Ripple Current
(rms)
-
25 mA
50 mA
I²t Inrush Current Transient
-
0.1 A²s
0.2 A²s
Turn-on Voltage Threshold
-
2.85 V
-
Turn-off Voltage Threshold
-
2.3 V
-
Note: All specifications are typical at 25 °C unless otherwise stated.
Notes
Tested with simulated source
impedance of 500 Hz to 20 MHz &
two 270 uF/10 V Oscon capacitors
with ESR=0.018 ohm max. at 100
kHz.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com