SRDB-04C500 Datasheet, PDF (1/5 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS 3.3 V Input 5 V/4 A Output

NON-ISOLATED DC/DC CONVERTERS
3.3 V Input 5 V/4 A Output
SRDB-04C500
RoHS Compliant
• Non-Isolated
• High Efficiency
• Fixed Frequency (530 kHz)
• Low Profile Package (8.5 mm)
• Remote Sense
• Allows Burst Mode Operation
at Low Load Currents
Description
The SRDB-04C500 is part of the low cost non-isolated dc/dc series. The module uses a DIP package for ease
of layout and space savings, with a low profile of 8.5mm. The output is closely regulated and the efficiency is
typically 92% at full load. The unit is designed to be highly efficient and cost-effective. Features include remote
sense, output voltage adjustment and burst mode at light load.
Part Selection
Output
Input
Voltage
Voltage
5V
3.3 V
Max. Output
Current
4A
Max. Output
Power
20 W
Typical
Efficiency
92%
Model Number
SRDB-04C500
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)
2.8 V
-
Ambient Temperature
0 °C
-
Storage Temperature
-40 °C
-
Max
4V
70 °C
125 °C
Notes
Input Specifications
Parameter
Input Voltage
Min
Typ
Max
3V
-
3.6 V
Notes
Input Current (full load)
-
-
8.5 A
Input Reflected Ripple Current (pk-pk)
-
Input Reflected Ripple Current (rms)
-
120 mA
25 mA
200 mA
50 mA
Tested with simulated source
impedance of 500 nH, 5 Hz to 20
MHz; 270 uF/16 V capacitors with
ESR=0.018 ohm max. at 100KHz
I²t Inrush Current Transient
-
0.02 A²s
0.05 A²s
Turn-on Voltage Threshold
-
2.8 V
2.9 V
Note: All specifications are typical at 25 °C unless otherwise stated.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com