S7DB-12B1AX Datasheet, PDF (1/7 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS

NON-ISOLATED DC/DC CONVERTERS
5.0V Input 0.9V to 3.3V/12A Output
S7DB-12B1Ax
• Non-Isolated
• Fixed frequency (300kHz)
• Low profile package (8.5mm)
• Remote Sense
• Remote On/Off
• Input Under-voltage Lockout (UVLO)
• OCP/SCP
• Wide Trim Range/output
Description
The S7DB-12B1Ax 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 8.5mm. The output is widely trimmed from
0.9V to 3.3V, and the efficiency of 3.3V 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 – 3.3V
5V
Max. Output
Current
12A
Max. Output
Power
39.6W
Typical
Efficiency
92%
Model Number
Active High
S7DB-12B1AH
Model Number
Active Low
S7DB-12B1A0
Note: Add “R” suffix at the end of the model number to indicate “Reel Packaging”, and “G” for “Tray
Packaging”.
Absolute Maximum Ratings
Parameter
Min
Typ
Input Voltage (continuous)
-0.3V
-
Output Enable Terminal Voltage
-0.3V
-
Ambient Temperature
-40°C
-
Storage Temperature
-55°C
-
Max
6V
6V
85°C
100°C
Notes
Input Specifications
Parameter
Input Voltage
Input Current (full load)
Vo=3.3V
Vo=2.5V
Vo=1.8V
Vo=1.5V
Vo=1.2V
Vo=1.0V
Vo=0.9V
Input Current (no load)
Remote Off Input Current
Input Reflected Ripple Current
(pk-pk)
Min
4.5V
-
-
-
-
-
-
-
-
-
Typ
5.0V
-
-
-
-
-
-
-
70mA
10mA
140mA
Max
5.5V
11.2A
8.7A
6.6A
5.5A
4.5A
3.5A
3.2A
100mA
20mA
280mA
Input Reflected Ripple Current
(RMS)
-
I²t Inrush Current Transient
-
Turn-on Voltage Threshold
-
Turn-off Voltage Threshold
-
40mA
0.1A²s
4.3V
3.85V
80mA
0.2A²s
4.5V
4.49V
Note: All specifications are typical at 25°C unless otherwise stated.
Notes
Tested with simulated source
impedance of 500Hz to 20MHz &
two 270uF/10V Oscon capacitors
with ESR=0.018 ohm max. at
100KHz
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com