NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.5V – 5.0V Output / 3A
S7AH-03A / V7AH-03A Series
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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
BP02x7AH-03A
Description
The Bel S7AH-03A and V7AH-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
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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
S7AH-03A500
S7AH-03A330
S7AH-03A250
S7AH-03A180
S7AH-03A150
Part Number
Vertical Mount
V7AH-03A500
V7AH-03A330
V7AH-03A250
V7AH-03A180
V7AH-03A150
©2003 Bel Fuse Inc.
Specifications subject to change without notice. 01.03
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
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BEL [ BEL FUSE INC. ]
