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PDF S7DB-12C Data sheet ( Hoja de datos )
| Número de pieza | S7DB-12C | |
| Descripción | NON-ISOLATED DC/DC CONVERTERS | |
| Fabricantes | Bel Fuse | |
| Logotipo |  |
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NON-ISOLATED DC/DC CONVERTERS
3.3V Input / 1.2V – 2.5V Output / 12A
S7DB-12C 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-12C
Description
The Bel S7DB-12C 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. 12A maximum output is also provided. Standard
features include remote on/off, remote sense, over cuDrraentat Sahndeesth4oUrt.ciorcmuit protection, UVLO 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
12A 30W
12A 21.6W
12A 18.0W
12A 14.4W
Typical
Efficiency
91%
87%
84%
82%
Part Number
S7DB-12C250
S7DB-12C180
S7DB-12C150
S7DB-12C120
DataSheet4U.com
©2002 Bel Fuse Inc. Specifications subject to change without notice. 10.02
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 / 12A
POWER PRODUCTS
BP02S7DB-12C
General Specifications
Parameter
Module Symbol Min Typical Max
Units
Efficiency1
2.5V
1.8V
1.5V
1.2V
η
88 91
84 87
81 84
79 82
%
Switching Frequency
All Fsw 250 300 340 kHz
Output Voltage Trim Range2
2.5V
1.8V
1.5V
1.2V
90
90
90
90
%
105
110
110
110
Remote Sense Compensation
All
10 %
et4U.com
Weight
All
10.5 g
1. Vin=3.3V, full load and Ta=25° C.
2. See graphs on pages 10-12. Total adjustment of trim, setpoint and remote sense combined should
not exceed 5% at nominal Vin, 25°C ambient for theDa2.t5aVShoeuteptu4tUm.coodumle.
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. 10.02
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 / 12A
Output Voltage Set-Point Adjustment
POWER PRODUCTS
BP02S7DB-12C
S7DB-12C180 Trim Resistor Calculation
Rtrim down = (
3.857
Vo – Vo, adj
– 12.93) Kohm
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
Adjusted output voltage Vo,adj (V)
1.8
et4U.com
Rtrim up =
(
3.072
Vo, adj – Vo
– 9.09) Kohm
300
270
240
210
180
150
120
90
60
DataSheet4U.com30
0
1.8
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
DataShee
300
270
240
210
180
150
120
90
60
30
0
1.3
1.32 1.34 1.36 1.38 1.4 1.42 1.44 1.46 1.48
Adjusted output voltage Vo,adj (V)
1.5
S7DB-12C150 Trim Resistor Calculation
Rtrim down = (
2.708
Vo – Vo, adj
– 10.99) Kohm
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
Adjusted output voltage Vo,adj(V)
1.8
Rtrim up = (
3.072
Vo, adj – Vo
– 7.15) Kohm
DataSheet4U.com
©2002 Bel Fuse Inc. Specifications subject to change without notice. 10.02
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-12C.PDF ] | |
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