SRDB-08B250G Bel Fuse Inc, SRDB-08B250G Datasheet

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SRDB-08B250G

Manufacturer Part Number
SRDB-08B250G
Description
CONV DC/DC 8A 5V 2.5V SMD
Manufacturer
Bel Fuse Inc
Series
SRDB-08Br
Type
Point of Load (POL) Non-Isolated with Remote On/Off and UVLOr
Datasheet
1.SRDB-08B120G.pdf (16 pages)

Specifications of SRDB-08B250G

Output
2.5V
Number Of Outputs
1
Power (watts)
20W
Mounting Type
Surface Mount
Voltage - Input
5V
Package / Case
12-DIP SMD Module
1st Output
2.5 VDC @ 8A
Size / Dimension
1.22" L x 0.83" W x 0.35" H (30.99mm x 21mm x 8.76mm)
Power (watts) - Rated
20W
Operating Temperature
-40°C ~ 85°C
Efficiency
91%
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
3rd Output
-
2nd Output
-
Other names
SRDB-08B250
Description
The Bel SRDB-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 1.2V to 3.3V. 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 short circuit protection, UVLO 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
•
•
•
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Part Number Selection
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Distributed power architectures
Data networking equipment
Telecommunications
Computers and peripherals
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NON-ISOLATED DC/DC CONVERTERS
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5 .
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SRDB-08B Series
a t
5V Input / 1.2V – 3.3V Output / 8A
p t
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Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
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
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©2006 Bel Fuse Inc.
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Specifications subject to change without notice. 06.06
POWER PRODUCTS
BP06SRDB-08B
page 1

Related parts for SRDB-08B250G

Image
Part Number
Description
Manufacturer
Datasheet
Request R
SRDB-08B120G
Part Number:
SRDB-08B120G
Description:
CONV DC/DC 8A 5V 1.2V SMD
Manufacturer:
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Datasheet:
SRDB-08B120G.pdf (16 pages)
SRDB-08B150G
Part Number:
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Description:
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SRDB-08B180G
Part Number:
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Description:
CONV DC/DC 8A 5V 1.8V SMD
Manufacturer:
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Datasheet:
SRDB-08B120G.pdf (16 pages)
SRDB-08B330G
Part Number:
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Description:
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Manufacturer:
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Datasheet:
SRDB-08B120G.pdf (16 pages)
SRDB-08B120R
Part Number:
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Description:
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Manufacturer:
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Datasheet:
SRDB-08B120G.pdf (16 pages)
SRDB-08B150R
Part Number:
SRDB-08B150R
Description:
CONV DC/DC 8A 5V 1.5VOUT SMD
Manufacturer:
Bel Fuse Inc
Datasheet:
SRDB-08B120G.pdf (16 pages)
SRDB-08B180R
Part Number:
SRDB-08B180R
Description:
CONV DC/DC 8A 5V 1.8VOUT SMD
Manufacturer:
Bel Fuse Inc
Datasheet:
SRDB-08B120G.pdf (16 pages)
SRDB-08B250R
Part Number:
SRDB-08B250R
Description:
CONV DC/DC 8A 5V 2.5VOUT SMD
Manufacturer:
Bel Fuse Inc
Datasheet:
SRDB-08B120G.pdf (16 pages)
SRDB-08B330R
Part Number:
SRDB-08B330R
Description:
CONV DC/DC 8A 5V 3.3VOUT SMD
Manufacturer:
Bel Fuse Inc
Datasheet:
SRDB-08B120G.pdf (16 pages)
SRDB-07A120G
Part Number:
SRDB-07A120G
Description:
CONV DC/DC 7A 12V 1.2V SMD
Manufacturer:
Bel Fuse Inc
Datasheet:
SRDB-07A120G.pdf (14 pages)
SRDB-07A150G
Part Number:
SRDB-07A150G
Description:
CONV DC/DC 7A 12V 1.5V SMD
Manufacturer:
Bel Fuse Inc
Datasheet:
SRDB-07A120G.pdf (14 pages)
SRDB-07A180G
Part Number:
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Description:
CONV DC/DC 7A 12V 1.8V SMD
Manufacturer:
Bel Fuse Inc
Datasheet:
SRDB-07A120G.pdf (14 pages)
SRDB-07A250G
Part Number:
SRDB-07A250G
Description:
CONV DC/DC 7A 12V 2.5V SMD
Manufacturer:
Bel Fuse Inc
Datasheet:
SRDB-07A120G.pdf (14 pages)
SRDB-07A330G
Part Number:
SRDB-07A330G
Description:
CONV DC/DC 7A 12V 3.3V SMD
Manufacturer:
Bel Fuse Inc
Datasheet:
SRDB-07A120G.pdf (14 pages)
S553-2940-02
Part Number:
S553-2940-02
Description:
Manufacturer:
Bel Fuse Inc
Datasheet:
S553-2940-02.pdf (4 pages)

SRDB-08B250G Summary of contents

Page 1

... Remote sense Description The Bel SRDB-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 1.2V to 3.3V. 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 short circuit protection, UVLO and output voltage adjust ...

Page 2

... POWER PRODUCTS BP06SRDB-08B Absolute Maximum Ratings Note: Use beyond the maximum ratings may cause a reliability degradation of the DC/DC converter or may permanently damage the device. Input Specifications Note: Input capacitance two 270µF/10V, ESR = 0.018 1. With simulated source impedance of 500nH, 5Hz to 20MHz. ...

Page 3

... Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com POWER PRODUCTS BP06SRDB-08B µ F ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 page 3 ...

Page 4

... POWER PRODUCTS BP06SRDB-08B Output Specifications Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 3. di/dt = 0.5A/1µ 25° C without external load capacitance. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ...

Page 5

... Control Specifications With remote on/off pin 8 open, the module is on. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com POWER PRODUCTS BP06SRDB-08B ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 page 5 ...

Page 6

... POWER PRODUCTS BP06SRDB-08B Efficiency Data 97.0% 96.0% 95.0% 94.0% 93.0% 92.0% 91.0% 90.0% 95.0% 94.0% 93.0% 92.0% 91.0% 90.0% 89.0% 88.0% 87.0% 94.0% 92.0% 90.0% 88.0% 86.0% 84.0% 82.0% 80.0% ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ...

Page 7

... Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com Module 1. Module 1. ©2006 Bel Fuse Inc. POWER PRODUCTS BP06SRDB-08B 4.5V 5.0V 5.5V 8 4.5V 5.0V 5. Specifications subject to change without notice. 06.06 page 7 ...

Page 8

... POWER PRODUCTS BP06SRDB-08B Ripple and Noise Ripple and noise at full load and 5Vdc input, 3.3Vdc output and Ta=25° C Ripple and noise at full load and 5Vdc input, 1.8Vdc output and Ta=25° C ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • ...

Page 9

... Ripple and noise at full load and 5Vdc input, 1.2Vdc output and Ta=25° C Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com POWER PRODUCTS BP06SRDB-08B ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 page 9 ...

Page 10

... POWER PRODUCTS BP06SRDB-08B Transient Response Transient response: di/dt = 0.5A/µS Vout=3. 3V 50% to 100% load transients at 5V input and Ta=25° C Vout=2.5V 50% to 100% load transients at 5V input and Ta=25° C ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ...

Page 11

... Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com POWER PRODUCTS Vout=1.8V 100% to 50% load transients at 5V input and Ta=25° C Vout=1.5V 100% to 50% load transients at 5V input and Ta=25° C ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 BP06SRDB-08B page 11 ...

Page 12

... POWER PRODUCTS BP06SRDB-08B Transient Response Transient response: di/dt = 0.5A/µS Vout=1.2V 50% to 100% load transients at 5V input and Ta=25° C Thermal Considerations ©2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ...

Page 13

... NON-ISOLATED DC/DC CONVERTERS 5V Input / 1.2V – 3.3V Output / 8A Output Voltage Set-Point Adjustment Trim Down Test Circuit SRDB-08B330 Trim Resistor Calculation 7.964 ( Rtrim down = – 6.82 Vo – Vo, adj 2.536 ( – 3.65 Rtrim up = Vo, adj – Vo Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ...

Page 14

... Kohm 180 150.01 120.01 90.01 60.01 30.01 0.01 2.5 2.52 2.55 SRDB-08B180 Trim Resistor Calculation Rtrim down = 1.8 ( Rtrim up = 2.09 2.12 2.16 1.9 1.98 2.05 2.13 2.2 2.27 2.35 2.42 Adjusted Output Voltage Vo,adj (V) 2.58 2.6 2.63 2 ...

Page 15

... NON-ISOLATED DC/DC CONVERTERS 5V Input / 1.2V – 3.3V Output / 8A Output Voltage Set-Point Adjustment SRDB-08B150 Trim Resistor Calculation 0.749 ( Rtrim down = – 3.21 Vo – Vo, adj 0.848 ( Rtrim up = – 2.15 Vo, adj – Vo 270 240 210 180 150.01 120.01 90.01 60.01 30.01 0.01 1.08 1.09 1 ...

Page 16

... POWER PRODUCTS BP06SRDB-08B Mechanical RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. These parts are not however compatible with the higher temperatures associated with lead free solder processes and must be soldered using a reflow profile with a peak temperature of no more than 240º ...

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