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PDF V7AH-08B Data sheet ( Hoja de datos )
| Número de pieza | V7AH-08B | |
| Descripción | NON-ISOLATED DC/DC CONVERTERS | |
| Fabricantes | Bel Fuse | |
| Logotipo |  |
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NON-ISOLATED DC/DC CONVERTERS
5V Input / 0.9V – 3.3V Output / 8A
S7AH-08B / V7AH-08B 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
BP03x7AH-08B
Description
The Bel S7AH-08B and V7AH-08B 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 0.9V to 3.3V. They are packaged
in a compact, overmolded package rated at 8A. 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, output voltage adjust and industrial temperature range (-40° to +85° C). The output is closely regulated and the
efficiency is typically 92% at full load. 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
1.0V
0.9V
0.9V - 3.3V
Input
Voltage
5V
5V
5V
5V
5V
5V
5V
5V
Max. Output
Current
8A
8A
8A
8A
8A
8A
8A
8A
Max. Output
Power
26.4W
20W
14.4W
12W
9.6W
8W
7.2W
26.4W
Typical
Efficiency
92%
90%
86%
84%
82%
80%
79%
92%
Part Number
Surface Mount
S7AH-08B330
S7AH-08B250
S7AH-08B180
S7AH-08B150
S7AH-08B120
S7AH-08B100
S7AH-08B090
S7AH-08B1A0
Part Number
Vertical Mount
V7AH-08B330
V7AH-08B250
V7AH-08B180
V7AH-08B150
V7AH-08B120
V7AH-08B100
V7AH-08B090
V7AH-08B1A0
©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04
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 / 0.9V – 3.3V Output / 8A
General Specifications
Parameter
Efficiency1
Switching Frequency
Output Voltage Trim Range2
(Wide Trim)
Output Voltage Trim Range2
(Narrow Trim)
Weight
Module
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
All
1.8V
Symbol
η
Fsw
Min
89
87
83
81
79
77
76
250
47.5
Typical
92
90
86
84
82
80
79
300
Max
340
202
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
All
90 110
90 110
90 110
90 110
90 110
90 110
95 110
4.7
1. Vin=5V, full load and Ta=25° C.
2. See graphs on page 13 - 20.
POWER PRODUCTS
BP03x7AH-08B
Units
%
kHz
%
%
g
Control Specifications
Parameter
Remote On/Off 1
Module
All
Symbol
Vouten
Signal Low (Unit Off)2
Vin = 4.5V
Vin = 5.5V
All
Signal High (Unit On)2
Vin = 4.5V
Vin = 5.5V
All
1. With remote on/off pin 1 open, the module is on.
2. Signal low and signal high varies based on Vin.
Note: On/off pin designed to work with an open collector/drain switch.
Min
-0.3
3.15
3.85
Typical
Max
1.35
1.65
5.5
Units
V
V
V
©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 5
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NON-ISOLATED DC/DC CONVERTERS
5V Input / 0.9V – 3.3V Output / 8A
Transient Response
Transient response: di/dt = 0.5A/µS, no external load capacitance
POWER PRODUCTS
BP03x7AH-08B
Vout=1.5V
50% to 100% load transients at 5V input and Ta=25° C
Vout=1.5V
100% to 50% load transients at 5V input and Ta=25° C
Vout=1.2V
50% to 100% load transients at 5V input and Ta=25° C
Vout=1.2V
100% to 50% load transients at 5V input and Ta=25° C
Vout=1.0V
50% to 100% load transients at 5V input and Ta=25° C
Vout=1.0V
100% to 50% load transients at 5V input and Ta=25° C
©2004 Bel Fuse Inc. Specifications subject to change without notice. 03.04
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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| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet V7AH-08B.PDF ] | |
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