VRAF-08AT5E Datasheet, PDF (1/8 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS

NON-ISOLATED DC/DC CONVERTERS
12 Vdc Input
Vddq/2 / 8 A Output
Nov. 10, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
VRAF-08AT5E RoHS Compliant Rev.A
Features
• Non-Isolated
• Under-Voltage Lockout
• High Efficiency
• Output Enable
• Fixed Frequency
• OCP/SCP
• Current Source/Sink Capability
• Low Cost
• Tracking a Reference for Output Voltage • High Power Density
• Over Voltage Protection (Hiccup Mode)
• Class 1, Category 2, Non-Isolated DC/DC Converter (refer to IPC-9592)
Applications
• Networking
• Computers and peripherals
• Telecommunications
Description
The Bel VRAF-08AT5E module is a non-isolated, step down dc/dc power converter that operates from a nominal
12 Vdc or wide range 5 Vdc to 13.8 Vdc source. This converter is designed specifically to provide bus termination
voltages in applications such as DDR (double data rate) memory where the bus termination voltage must closely
track the I/O bus voltage. The converter accepts a reference input and uses this to program its output voltage to
50% of the reference. The unit is packaged in compact single-in-line footprint and provides a maximum 8 A
output. Standard features include remote on/off, input under-voltage lockout, output over voltage protection.
Part Selection
Output Voltage
0.9 Vdc
Input Voltage
5.0 Vdc - 13.8 Vdc
Max. Output
Current
8A
Max. Output
Power
7.2 W
Typical
Efficiency
69%
Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Model Number
VRAF-08AT5E
Part Number Explanation
V R AF – 08 A T5 E
12 3 4 5 6 7
1---Vertical mount
2---RoHS 6, change “R” to “7” means RoHS 5
3---Series name (SIP)
4---Series code (output current 8A)
5---Input range (5.0-13.8V)
6---Output voltage (Vddq/2)
7---Suffix
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
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