SRAH-03A Datasheet, PDF (1/15 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS 12V Input / 1.5V - 5.0V Output / 3A

NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.5V – 5.0V Output / 3A
SRAH-03A / VRAH-03A Series RoHS Compliant
• Nonisolated
• Compact, low profile surface mount package
• Fixed frequency
• High efficiency means less power dissipation
• Excellent thermal performance
• Optimized for cost
• Remote on/off
• Undervoltage lockout (UVLO)
• Over current and short circuit protection
POWER PRODUCTS
BP05xRAH-03A
Description
The Bel SRAH-03A and VRAH-03A modules are a series of non-isolated, step down DC/DC power converters that operate
from a nominal 12V source. These converters are available in a range of output voltages from 1.5V to 5.0V. They are pack-
aged in a compact, overmolded package rated at 3A. Optional lead forming provides a vertical mount product for minimal
footprint or a surface mount option for a very low profile. Standard features include remote on/off, over current and short circuit
protection, and output voltage adjust. These products may be used almost anywhere low voltage silicon is employed and a
12V source is available. Typical applications include file servers, routers, line cards and other computing and communications
equipment.
Applications
• Distributed power architectures
• Data networking equipment
• Telecommunications
• Computers and peripherals
Part Number Selection
Output
Voltage
5.0V
3.3V
2.5V
1.8V
1.5V
Input
Voltage
12V
12V
12V
12V
12V
Max. Output
Current
3A
3A
3A
3A
3A
Max. Output
Power
15W
9.9W
7.5W
5.4W
4.5W
Typical
Efficiency
91%
90%
88%
85%
84%
Part Number
Surface Mount
SRAH-03A500
SRAH-03A330
SRAH-03A250
SRAH-03A180
SRAH-03A150
Part Number
Vertical Mount
VRAH-03A500
VRAH-03A330
VRAH-03A250
VRAH-03A180
VRAH-03A150
©2005 Bel Fuse Inc. Specifications subject to change without notice. 07.05
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
page 1