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Электронный компонент: SRAH-05B180

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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
2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP06xRAH-05B
5V Input / 1.2V 3.3V Output / 5A
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
Description
The Bel SRAH-05B and VRAH-05B 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, overmolded package rated at 5A. 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, 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
page 1
SRAH-05B / VRAH-05B Series
Distributed power architectures
Data networking equipment
Telecommunications
Computers and peripherals
Part Number Selection
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background image
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP06xRAH-05B
5V Input / 1.2V 3.3V Output / 5A
page 2
Input Specifications
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.
Note: Input capacitance one 270F/16V, ESR = 0.018
max at 100kHz @ 25 C.
1. With simulated source impedance of 500nH, 5Hz to 20MHz.
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background image
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP06xRAH-05B
5V Input / 1.2V 3.3V Output / 5A
page 3
Output Specifications
Note: All specifications are typical at nominal input, full load at 25 C unless otherwise stated.
1. Vin = 5V, Iout = full load, Ta = 25 C.
2. 0 - 20MHz, 1F ceramic cap and 10F aluminum cap on output.
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background image
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP06xRAH-05B
5V Input / 1.2V 3.3V Output / 5A
page 4
Output Specifications
Note: All specifications are typical at nominal input, full load at 25 C unless otherwise stated.
3. di/dt = 0.5A/1S, Ta = 25 C without external load capacitance.
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background image
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP06xRAH-05B
5V Input / 1.2V 3.3V Output / 5A
page 5
Control Specifications
General Specifications
1. Vin=5V, full load and Ta=25 C.
2. See graphs on pages 10-12.
3. With remote on/off pin 1 open, the module is on.
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t
i
n
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(
w
o
L
l
a
n
g
i
S
ll
A
0
1
V
)
f
f
O
t
i
n
U
(
h
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i
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l
a
n
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ll
A
8
.
2
5
.
5
V