VRBA-06F2A_07 Datasheet, PDF (1/9 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/6 A Output
VRBA-06F2Ax RoHS Compliant
Rev.A
• Non-Isolated
• High Efficiency
• High Power Density
• Fixed Frequency (300 kHz)
• Flexible Output Voltage
Sequencing
• Under-voltage Lockout (UVLO)
• Wide Trim
• OCP/SCP
• Remote On/Off
• Active Low/High (option)
• Able to Sink & Source Current
Description
The Bel VRBA-06F2Ax modules are a series of non-isolated dc/dc converters that deliver up to 6 A of output
current with full load efficiency of 93% 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). These modules have a sequencing feature that enables designers to implement various types of output
voltage sequencing when powering multiple voltages on a board. 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, wide input, and programmable output voltage.
Part Selection
Output
Input
Voltage
Voltage
0.75 V -3.63 V¹ 2.4 V - 5.5 V
Max. Output Max. Output
Current
Power
6A
21.8 W
Typical
Efficiency
93%
Model Number
Active Low
VRBA-06F2AL
Model Number
Active High
VRBA-06F2A0
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” suffix at 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
Max
Input Voltage (continuous)
-0.3 V
-
5.8 V
Output Enable Terminal Voltage
-0.3 V
-
5.5 V
Sequencing Voltage ¹
-0.3 V
-
Vin
Ambient Temperature
-40 °C
-
85 °C
Storage Temperature
-55 °C
-
125 °C
Notes
Notes: All specifications are typical at 25 °C unless otherwise stated.
1. VRBA-06F2Ax series of modules include a sequencing feature that enables users to implement
various types of output voltage sequencing in their applications. This is accomplished via an additional
sequencing pin. When not used sequencing feature, tie the SEQ pin to Vin or leave the SEQ pin floating.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com