SRAH-08B1A00 Bel Fuse Inc, SRAH-08B1A00 Datasheet

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SRAH-08B1A00

Manufacturer Part Number
SRAH-08B1A00
Description
CONV DC/DC 8A 5V .9-3.3V SMD
Manufacturer
Bel Fuse Inc
Series
SRAH-08Br
Type
Point of Load (POL) Non-Isolated with Remote On/Off and UVLOr
Datasheet
1.SRAH-08B1A0R.pdf (22 pages)

Specifications of SRAH-08B1A00

Output
0.9 ~ 3.3V
Number Of Outputs
1
Power (watts)
26W
Mounting Type
Surface Mount
Voltage - Input
5V
Package / Case
7-DIP SMD Module
1st Output
0.9 ~ 3.3 VDC @ 8A
Size / Dimension
0.78" L x 0.70" W x 0.32" H (19.8mm x 17.8mm x 8.1mm)
Power (watts) - Rated
26.4W
Operating Temperature
-40°C ~ 85°C
Efficiency
92%
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
3rd Output
-
2nd Output
-
Description
The Bel SRAH-08B and VRAH-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
•
•
•
•
Part Number Selection
0
SRAH-08B / VRAH-08B Series
9 .
V
O
l o
V
Distributed power architectures
Data networking equipment
Telecommunications
Computers and peripherals
3
2
0
1
1
1
1
u
NON-ISOLATED DC/DC CONVERTERS
5V Input / 0.9V – 3.3V Output / 8A
3 .
5 .
9 .
8 .
5 .
2 .
0 .
a t
•
•
•
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•
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3
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t u
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e
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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
V
n I
l o
5
5
5
5
5
5
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w
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RoHS Compliant
E
T
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9
9
8
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%
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n
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©2006 Bel Fuse Inc.
S
S
S
S
S
S
S
S
S
P
r u
R
R
R
R
R
R
R
R
a
A
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t r
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H
H
H
H
H
H
H
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c
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0 -
0 -
0 -
0 -
0 -
0 -
0 -
0 -
e
u
8
8
8
8
8
8
8
8
M
m
B
B
B
B
B
B
B
B
o
b
1
3
2
1
1
1
1
0
u
r e
A
3
5
8
5
2
0
9
t n
0
0
0
0
0
0
0
0
Specifications subject to change without notice. 02.06
POWER PRODUCTS
V
V
V
V
V
V
V
V
V
P
e
R
R
R
R
R
R
R
V
a
t r
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A
A
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A
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t r
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H
H
H
H
H
H
H
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N
l a
0 -
0 -
0 -
0 -
0 -
0 -
0 -
0 -
u
8
8
8
8
8
8
8
8
M
m
B
B
B
B
B
B
B
B
o
b
1
3
2
1
1
1
1
0
u
r e
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3
5
8
5
2
0
9
t n
0
0
0
0
0
0
0
0
BP06xRAH-08B
page 1

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SRAH-08B1A00 Summary of contents

Page 1

... Over current and short circuit protection Description The Bel SRAH-08B and VRAH-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° ...

Page 2

... With simulated source impedance of 500nH, 5Hz to 20MHz. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 2 NON-ISOLATED DC/DC CONVERTERS 5V Input / 0.9V – 3.3V Output / 8A ...

Page 3

... Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 1. Vin = 5V, Iout = full load 25° 20MHz, 1µF ceramic cap and 10µF aluminum cap on output. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com S y ...

Page 4

... Ta = 25° C without external load capacitance; when Vout=3.3V or 2.5V a 220µF aluminum cap is added at output. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 4 NON-ISOLATED DC/DC CONVERTERS 5V Input / 0.9V – 3.3V Output / 8A ...

Page 5

... 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. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com d u ...

Page 6

... OUTPUT CURRENT ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 6 NON-ISOLATED DC/DC CONVERTERS 5V Input / 0.9V – 3.3V Output / 8A 95% ...

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 1.2V 2.0 3.0 4.0 5.0 6.0 OUTPUT CURRENT MODULE 1.0V 2.0 3.0 4.0 5.0 6.0 OUTPUT CURRENT MODULE 0 ...

Page 8

... Ta=25° C ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 8 NON-ISOLATED DC/DC CONVERTERS 5V Input / 0.9V – 3.3V Output / 8A Ripple and noise at full load and 5Vdc input, 2.5Vdc output and Ta=25° ...

Page 9

... Ripple and noise at full load and 5Vdc input, 1.0Vdc 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 Ripple and noise at full load and 5Vdc input, 1.2Vdc output and Ta=25° ...

Page 10

... Ta=25° C ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 10 NON-ISOLATED DC/DC CONVERTERS 5V Input / 0.9V – ...

Page 11

... Ta=25° C Vout=1.0V 50% to 100% load transients at 5V input 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 Vout=1.5V 100% to 50% load transients at 5V input and Ta=25° C Vout=1.2V 100% to 50% load transients at 5V input and Ta=25° ...

Page 12

... Vout=0.9V 50% to 100% load transients at 5V input and Ta=25° C Thermal Considerations SRAH-08B ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ...

Page 13

... Vo is the nominal output voltage setpoint when trim pin is open ,Vo=1.805V Vo,adj is the adjusted output voltage. Rtrim-up is the resistance required between TRIM and GND. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com Trim Up Test Circuit Vo ...

Page 14

... Rtrim-up is the resistance required between TRIM and GND. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 14 NON-ISOLATED DC/DC CONVERTERS 5V Input / 0.9V – 3.3V Output / ...

Page 15

... Vo is the nominal output voltage setpoint when trim pin is open ,Vo=2.503V Vo,adj is the adjusted output voltage. Rtrim-up is the resistance required between TRIM and GND. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 4 1 ...

Page 16

... Rtrim-up is the resistance required between TRIM and GND. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 16 NON-ISOLATED DC/DC CONVERTERS 5V Input / 0.9V – 3.3V Output / ...

Page 17

... Vo is the nominal output voltage setpoint when trim pin is open ,Vo=1.503V Vo,adj is the adjusted output voltage. Rtrim-up is the resistance required between TRIM and GND. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 4 1 ...

Page 18

... Rtrim-up is the resistance required between TRIM and GND. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 18 NON-ISOLATED DC/DC CONVERTERS 5V Input / 0.9V – 3.3V Output / 8A ...

Page 19

... Rtrim-up is the resistance required between TRIM and GND. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 5V Input / 0.9V – 3.3V Output / 8A ...

Page 20

... Rtrim-up is the resistance required between TRIM and GND. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 20 NON-ISOLATED DC/DC CONVERTERS 5V Input / 0.9V – 3.3V Output / 8A ...

Page 21

... NON-ISOLATED DC/DC CONVERTERS 5V Input / 0.9V – 3.3V Output / 8A Mechanical SRAH-08B 0.400 [10.16] 0.60 0.050 [15.24] [1.27] 0.70 [17.78] 0.012 [0.30] 0.050 [1.27] 0.100 [2.54] 0.400 4x [10.16] Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com Suggested PCB Pad Layout 0 ...

Page 22

... ©2006 Bel Fuse Inc. FAR EAST Bel Fuse Ltd Luk Hop Street San Po Kong Kowloon, Hong Kong Tel 852-2328-5515 Fax 852-2352-3706 www.belfuse.com Specifications subject to change without notice. 02.06 EUROPE Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Suite G7, Preston Lancashire, PR1 8UD, U ...

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