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PDF V7AH-05B Data sheet ( Hoja de datos )
| Número de pieza | V7AH-05B | |
| Descripción | NON-ISOLATED DC/DC CONVERTERS | |
| Fabricantes | Bel Fuse | |
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NON-ISOLATED DC/DC CONVERTERS
5V Input / 1.2V – 3.3V Output / 5A
S7AH-05B / V7AH-05B Series
• 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-05B
Description
The Bel S7AH-05B and V7AH-05B modules are a series of non-isolated, step down DC/DC power converters that operate
from a nominal 5V source. These converters are available in a range of output voltages from 1.2V to 3.3V. They are packaged
in a compact, overmolded package rated at 5A. 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
5V 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
3.3V
2.5V
1.8V
1.5V
1.2V
Input
Voltage
5V
5V
5V
5V
5V
Max. Output
Current
5A
5A
5A
5A
5A
Max. Output
Power
16.5W
12.5W
9.0W
7.5W
6W
Typical
Efficiency
92%
90%
86%
84%
82%
Part Number
Surface Mount
S7AH-05B330
S7AH-05B250
S7AH-05B180
S7AH-05B150
S7AH-05B120
Part Number
Vertical Mount
V7AH-05B330
V7AH-05B250
V7AH-05B180
V7AH-05B150
V7AH-05B120
©2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
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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NON-ISOLATED DC/DC CONVERTERS
5V Input / 1.2V – 3.3V Output / 5A
POWER PRODUCTS
BP02x7AH-05B
General Specifications
Parameter
Efficiency1
Switching Frequency
Output Voltage Trim Range2
Weight
Module Symbol Min Typical Max
3.3V
2.5V
1.8V
1.5V
1.2V
η
89 92
87 90
83 86
81 84
79 82
All Fsw 260 300 340
All 90 110
All 4.7
1. Vin=5V, full load and Ta=25° C.
2. See graphs on pages 10-12.
Units
%
kHz
%
g
Control Specifications
Parameter
Remote On/Off 3
Signal Low (Unit On)
Signal High (Unit Off)
Module
All
All
All
Symbol
Vouten
3. With remote on/off pin 1 open, the module is on.
Min
0
2.8
Typical
Max
1
5.5
Units
V
V
V
©2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
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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NON-ISOLATED DC/DC CONVERTERS
5V Input / 1.2V – 3.3V Output / 5A
Output Voltage Set-Point Adjustment
POWER PRODUCTS
BP02x7AH-05B
Trim Down Test Circuit
Vo
Trim
Gnd
Trim Up Test Circuit
Vo
Trim
Gnd
Output Voltage Set-Point Adjustment
x7AH-05B330 Trim Resistor Calculation
Rtrim down = (
7.914
Vo – Vo, adj
– 8.27) Kohm
270
240
210
180
150. 01
120. 01
90. 01
60. 01
30. 01
0. 01
2.97 3 3.04 3.07 3.1 3.13 3.17 3.2 3.23 3.27 3.3
Adjusted output voltage Vo,adj (V)
Rtrim up =
(
2.528
Vo, adj – Vo
– 5.11) Kohm
270
240
210
180
150. 01
120. 01
90. 01
60. 01
30. 01
0.013.3 3.33 3.37 3.4 3.43 3.46 3.5 3.53 3.56 3.6 3.63
Adjusted output voltage Vo,adj(V)
©2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
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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11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet V7AH-05B.PDF ] | |
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