VRBA-03F1AX Datasheet, PDF (1/8 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS

NON-ISOLATED DC/DC CONVERTERS
2.4 Vdc - 5.5 Vdc Input
0.75 Vdc - 3.63 Vdc/3 A Output
VRBA-03F1Ax RoHS Compliant
Rev.A
• Non-Isolated
• High Efficiency
• High Power Density
• Fixed Frequency (300 kHz)
• Under-voltage Lockout (UVLO)
• OCP/SCP
• Remote On/Off
• Wide Trim Range
• Converter Can Sink and Source
Current
Description
The Bel VRBA-03F1Ax modules are a series of non-isolated dc/dc converters that deliver up to 3 A of output
current with full load efficiency of 94% at 3.3 Vdc output. These modules provide precisely regulated voltage
programmable via external resistor from 0.75 Vdc to 3.63 Vdc over a wide range of input voltage (2.4 Vdc - 5.5
Vdc). The open-frame construction and small footprint enable designers to develop cost and space-efficient
solutions. Standard features include remote On/Off, over current protection, short circuit protection, under-
voltage lockout, and programmable output voltage.
Part Selection
Output
Input
Voltage
Voltage
0.75 V - 3.63 V¹ 2.4 V - 5.5 V
Max. Output
Current
3A
Max. Output
Power
10 W
Typical
Efficiency
94%
Model Number
Active Low
VRBA-03F1AL
Model Number
Active High
VRBA-03F1A0
Notes: 1. These modules use a buck topology, so the output voltages must be 0.5 V less than the input voltage.
2. Add “G” to the end of the Model Number to indicate Tray Packaging.
3. 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
Input Voltage (continuous)
-0.3 V
-
Max
5.8 V
Output Enable Terminal Voltage
-0.3 V
-
5.5 V
Ambient Temperature
-40 °C
-
85 °C
Storage Temperature
-55 °C
-
125 °C
Note: All specifications are typical at 25 °C unless otherwise stated.
Notes
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com