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NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.5 – 3.3V Output / 3A
V7PA-03A Series
• Nonisolated
• Fixed frequency
• High efficiency means less power dissipation
• Optimized for cost
• Remote on/off
• Undervoltage lockout
• Over current and short circuit protection
POWER PRODUCTS
BP01V7PA-03A
Description
The Bel V7PA-03A series modules are 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 3.3V. They are packaged in a single-in-line
footprint and provide a maximum 3A output. Standard features include remote on/off, over current 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
• Telecommunications
• Networking
• Computers and peripherals
Part Number Selection
Output
Voltage
3.3V
2.5V
1.5V
Input
Voltage
12V
12V
12V
Max. Output Max. Output Typical
Current
Power
Efficiency
3A
10W
89%
3A
7.5W
86%
3A
4.5W
82%
Part Number
V7PA-03A330
V7PA-03A250
V7PA-03A150
©2002 Bel Fuse Inc. Specifications subject to change without notice. 01.02
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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POWER PRODUCTS
BP01V7PA-03A
NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.5 – 3.3V Output / 3A
Absolute Maximum Ratings
Parameter
Symbol Min Typical Max
Unit
Continuous Input Voltage
Vin -0.3
15 V
Output Enable Terminal Voltage
Vouten
-0.3
15 V
Ambient Temperature
Tamb
0
70 °C
Storage Temperature
Tstor
-40
100 °C
Note: Use beyond the maximum ratings may cause a reliability degradation of the DC/DC
converter or may permanently damage the device.
Input Specifications
Parameter
Symbol Min Typical Max
Operating Input Voltage
Vin 10.8
13.2
Input Current
No Load Input Current
Remote Off Input Current
Input Reflected Ripple Current1
Iin
1.3
50
3 15
20 30
Input Reflected Ripple Current (P-P)1
I2t Inrush Current Transient
Turn On Voltage Threshold
Turn Off Voltage Threshold
65 100
0.03 0.06
9.7
8 8.8 10
Note: Input capacitance 270µF/16V, ESR = 0.03 Ω max at 100kHz @ 25° C.
1. With simulated source impedance of 500nH, 5Hz to 20MHz.
Units
V
A
mA
mA
mArms
mApk
A2s
V
V
©2002 Bel Fuse Inc. Specifications subject to change without notice. 01.02
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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