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PDF S7DB-08C Data sheet ( Hoja de datos )
| Número de pieza | S7DB-08C | |
| Descripción | NON-ISOLATED DC/DC CONVERTERS | |
| Fabricantes | Bel Fuse | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de S7DB-08C (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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www.DataSheet4U.com
NON-ISOLATED DC/DC CONVERTERS
3.3V Input / 1.2V – 2.5V Output / 8A
S7DB-08C 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
• Remote sense
POWER PRODUCTS
BP02S7DB-08C
Description
The Bel S7DB-08C modules are a series of non-isolated, step down DC/DC power converters that operate from a nominal
3.3V source. These converters are available in a range of output voltages from 1.2V to 2.5V. They are packaged in a compact,
low profile, surface mount DIP package for ease of layout and space savings. 8A maximum output is also provided. Standard
features include remote on/off, over current and shortDcairtcauSithperoette4cUtio.cno, mUVLO and output voltage adjust. These products may
be used almost anywhere low voltage silicon is employed and a 3.3V source is available. Typical applications include file
servers, routers, line cards and other computing and communications equipment.
DataShee
Applications
• Distributed power architectures
• Data networking equipment
• Telecommunications
• Computers and peripherals
Part Number Selection
Output
Voltage
2.5V
1.8V
1.5V
1.2V
Input
Voltage
3.3V
3.3V
3.3V
3.3V
Max. Output Max. Output
Current
Power
8A 20W
8A 14.4W
8A 12W
8A 9.6W
Typical
Efficiency
92%
88%
86%
83%
Part Number
S7DB-08C250
S7DB-08C180
S7DB-08C150
S7DB-08C120
DataSheet4U.com
©2002 Bel Fuse Inc. Specifications subject to change without notice. 08.02
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 1
1 page  
www.DataSheet4U.com
NON-ISOLATED DC/DC CONVERTERS
3.3V Input / 1.2V – 2.5V Output / 8A
POWER PRODUCTS
BP02S7DB-08C
General Specifications
Parameter
Efficiency1
Switching Frequency
Output Voltage Trim Range2
Remote Sense Compensation
et4U.com
Weight
Module
2.5V
1.8V
1.5V
1.2V
All
2.5V
1.8V
1.5V
1.2V
2.5V
1.8V
1.5V
1.2V
All
1. Vin=3.3V, full load and Ta=25° C.
2. See graphs on pages 12-14.
Symbol Min Typical
η
89 92
85 88
83 86
80 83
Fsw 250 300
80
90
90
90
DataSheet4U.com10.5
Max
340
105
110
110
110
5
10
10
10
Units
%
kHz
%
%
g
DataShee
Control Specifications
Parameter
Remote On/Off 3
Module
All
Symbol
Vouten
Signal Low (Unit Off)
All
Signal High (Unit On)
All
3. With remote on/off pin 8 open, the module is on.
Min
-0.3
2.8
Typical
Max
0.8
4
Units
V
V
V
Note: On/off pin designed to work with an open collector/drain switch.
DataSheet4U.com
©2002 Bel Fuse Inc. Specifications subject to change without notice. 08.02
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 5
5 Page 
www.DataSheet4U.com
NON-ISOLATED DC/DC CONVERTERS
3.3V Input / 1.2V – 2.5V Output / 8A
POWER PRODUCTS
Output Voltage Set-Point Adjustment
BP02S7DB-08C
S7DB-08C250 Trim Resistor Calculation
Rtrim down = (
9.590
Vo – Vo, adj
– 14.29) Kohm
300
270
240
210
180
150
120
90
60
30
0
1.9
1.96 2.02 2.08 2.14 2.2 2.26 2.32 2.38 2.44
A djusted outp ut voltage Vo,adj (V)
2.5
et4U.com
Rtrim up =
(
4.504
Vo, adj – Vo
– 8.66) Kohm
300
270
240
210
180
150
120
90
DataSheet4U.co6m0
30
0
2.5 2.52 2.53 2.54 2.56 2.58 2.59 2.61 2.62 2.63 2.65
Adjusted output voltage Vo,adj(V)
300
270
240
210
180
150
120
90
60
30
0
1.5
1.53 1.56 1.59 1.62 1.65 1.68 1.71 1.74 1.77
A djust ed outp ut voltage Vo,adj (V)
1.8
S7DB-08C180 Trim Resistor Calculation
Rtrim down = (
3.869
Vo – Vo, adj
– 12.5) Kohm
DataShee
300
270
240
210
180
150
120
90
60
30
0
1.8
DataSheet4U.com
1.83 1.86 1.89 1.92 1.95 1.98 2.01 2.04 2.07
Adjusted output voltage Vo,adj(V)
2.1
Rtrim up = (
3.072
Vo, adj – Vo
– 8.66) Kohm
©2002 Bel Fuse Inc. Specifications subject to change without notice. 08.02
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet S7DB-08C.PDF ] | |
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