SRAH-05B330 [BEL]
NON-ISOLATED DC/DC CONVERTERS 5V Input / 1.2V - 3.3V Output / 5A; 非隔离式DC / DC转换器5V输入/ 1.2V - 3.3V输出/ 5A
| 型号： | SRAH-05B330 |
| 厂家： | 
BEL FUSE INC. |
| 描述： | NON-ISOLATED DC/DC CONVERTERS 5V Input / 1.2V - 3.3V Output / 5A |
| 文件： | 总15页 (文件大小：190K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NON-ISOLATED DC/DC CONVERTERS
5V Input / 1.2V – 3.3V Output / 5A
POWER PRODUCTS
BP06xRAH-05B
SRAH-05B / VRAH-05B Series
RoHS Compliant
•
•
•
•
•
•
•
•
•
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
•
•
•
•
Distributed power architectures
Data networking equipment
Telecommunications
Computers and peripherals
Part Number Selection
Output
Voltage
Input
Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Part Number
Surface Mount
Part Number
Vertical Mount
3.3V
2.5V
1.8V
1.5V
1.2V
5V
5V
5V
5V
5V
5A
5A
5A
5A
5A
16.5W
12.5W
9.0W
7.5W
6W
92%
90%
86%
84%
82%
SRAH-05B330
SRAH-05B250
SRAH-05B180
SRAH-05B150
SRAH-05B120
VRAH-05B330
VRAH-05B250
VRAH-05B180
VRAH-05B150
VRAH-05B120
©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 1
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
5V Input / 1.2V – 3.3V Output / 5A
BP06xRAH-05B
Absolute Maximum Ratings
Parameter
Symbol
Min
-0.3
-0.3
0
Typical
Max
6
Unit
V
Continuous Input Voltage
Output Enable Terminal Voltage
Ambient Temperature
Storage Temperature
Vin
Vouten
Tamb
Tstor
6
V
70
100
°C
°C
-40
Note: Use beyond the maximum ratings may cause a reliability degradation of the DC/DC
converter or may permanently damage the device.
Input Specifications
Parameter
Module
Symbol
Min
Typical
Max
Units
Operating Input Voltage
Input Current
All
Vin
Iin
4.5
5.5
V
A
3.3V
2.5V
1.8V
1.5V
1.2V
4.6
3.6
2.7
2.3
1.9
No Load Input Current
mA
mA
All
30
4
Remote Off Input Current
8
Input Reflected Ripple Current1
mArms
All
All
All
All
All
30
60
Input Reflected Ripple Current (P-P)1
I2t Inrush Current Transient
Turn On Voltage Threshold
Turn Off Voltage Threshold
100
0.02
4.3
3.9
150
0.05
4.5
mApk
A2s
V
4.19
4.49
V
Note: Input capacitance one 270µF/16V, ESR = 0.018 Ω max at 100kHz @ 25° C.
1. 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 / 1.2V – 3.3V Output / 5A
POWER PRODUCTS
BP06xRAH-05B
Output Specifications
Parameter
Module
Symbol
Min
Typical
Max
Units
Output Voltage Set Point 1
Vout
V
3.3V
2.5V
1.8V
1.5V
1.2V
3.234
2.45
1.764
1.47
3.3
2.5
1.8
1.5
1.2
3.366
2.55
1.836
1.53
1.176
1.224
Load Regulation
mV
mV
mV
mV
3.3V
2.5V
1.8V
1.5V
1.2V
6.0
6.0
6.0
6.0
6.0
15
15
15
15
15
Line Regulation
3.3V
2.5V
1.8V
1.5V
1.2V
3.0
3.0
3.0
3.0
3.0
10
10
8
8
8
Regulation Over Temperature
Total Output Voltage Regulation
3.3V
2.5V
1.8V
1.5V
1.2V
20
20
10
10
8
33
25
18
15
12
3.3V
2.5V
1.8V
1.5V
1.2V
58
50
41
38
35
Output Ripple and Noise 2
Output Ripple and Noise 2
Output Current Range
Output DC Current Limit
Short Circuit Surge
All
All
All
All
50
15
100
25
mVp-p
mVrms
A
Iout
0
5
Ioutlim
6.5
12.5
A
Ioutsurge
A2s
3.3V
2.5V
1.8V
1.5V
1.2V
0.08
0.05
0.05
0.05
0.05
0.2
0.1
0.1
0.1
0.1
Turn on Time
All
All
All
Ton
12
0
20
3
ms
%
Overshoot at Turn On
Output Capacitance
Cout
0
2000
µF
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, 1µF ceramic cap and 10µF aluminum cap on 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 3
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
5V Input / 1.2V – 3.3V Output / 5A
BP06xRAH-05B
Output Specifications
Parameter
Module
Symbol
Min
Typical
Max
Units
Transient Response 3
∆V 50% to 100% of Max Load
Settling Time
120
25
165
50
mV
µs
Ts
Ts
3.3V
∆V 100% to 50% of Max Load
Settling Time
120
25
165
50
mV
µs
Transient Response 3
∆V 50% to 100% of Max Load
Settling Time
100
25
150
50
mV
µs
Ts
Ts
2.5V
1.8V
1.5V
1.2V
∆V 100% to 50% of Max Load
Settling Time
100
25
150
50
mV
µs
Transient Response 3
∆V 50% to 100% of Max Load
Settling Time
100
25
150
50
mV
µs
Ts
Ts
∆V 100% to 50% of Max Load
Settling Time
100
25
150
50
mV
µs
Transient Response 3
∆V 50% to 100% of Max Load
Settling Time
100
25
150
50
mV
µs
Ts
Ts
∆V 100% to 50% of Max Load
Settling Time
100
25
150
50
mV
µs
Transient Response 3
∆V 50% to 100% of Max Load
Settling Time
100
25
150
50
mV
µs
Ts
Ts
∆V 100% to 50% of Max Load
Settling Time
100
25
150
50
mV
µs
Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated.
3. di/dt = 0.5A/1µS, Ta = 25° C without external load capacitance.
©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 / 1.2V – 3.3V Output / 5A
POWER PRODUCTS
BP06xRAH-05B
General Specifications
Parameter
Module
Symbol
Min
Typical
Max
Units
Efficiency1
%
η
3.3V
2.5V
1.8V
1.5V
1.2V
89
87
83
81
79
92
90
86
84
82
Switching Frequency
Output Voltage Trim Range2
Weight
Fsw
kHz
%
All
All
All
260
90
300
340
110
4.7
g
1. Vin=5V, full load and Ta=25° C.
2. See graphs on pages 10-12.
Control Specifications
Parameter
Module
Symbol
Vouten
Min
Typical
Max
Units
Remote On/Off 3
All
V
Signal Low (Unit On)
Signal High (Unit Off)
All
All
0
1
V
V
2.8
5.5
3. With remote on/off pin 1 open, the module is on.
©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 5
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
5V Input / 1.2V – 3.3V Output / 5A
BP06xRAH-05B
Efficiency Data
Module 2.5V
Module 3.3V
95%
94%
97%
96%
95%
94%
93%
92%
4.5V
4.5V
5.0V
5.5V
93%
92%
91%
90%
5.0V
5.5V
1
2
3
4
5
6
1
2
3
4
5
6
Output Current
Output Current
Module 1.5V
Module 1.8V
92%
91%
90%
89%
88%
87%
86%
85%
93%
92%
91%
90%
89%
88%
87%
86%
4.5V
5.0V
5.5V
4.5V
5.0V
5.5V
1
2
3
4
5
6
1
2
3
4
5
6
Output Current
Output Current
Module 1.2V
88%
87%
86%
85%
84%
83%
82%
81%
4.5V
5.0V
5.5V
1
2
3
4
5
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 / 1.2V – 3.3V Output / 5A
POWER PRODUCTS
BP06xRAH-05B
Ripple and Noise
1µF ceramic cap and 10µF aluminum electrolytic cap added at the output.
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,
2.5Vdc output and Ta=25° C
Ripple and noise at full load and 5Vdc input,
1.8Vdc output and Ta=25° C
Ripple and noise at full load and 5Vdc input,
1.5Vdc output and Ta=25° C
Ripple and noise at full load and 5Vdc input,
1.2Vdc output and 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 7
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
BP06xRAH-05B
5V Input / 1.2V – 3.3V Output / 5A
Transient Response
Transient response: di/dt = 0.5A/µS, no external load capacitance
Vout=3.3V
Vout=3.3V
50% to 100% load transients at 5V input and Ta=25° C
100% to 50% load transients at 5V input and Ta=25° C
Vout=2.5V
Vout=2.5V
50% to 100% load transients at 5V input and Ta=25° C
100% to 50% load transients at 5V input and Ta=25° C
Vout=1.8V
Vout=1.8V
50% to 100% load transients at 5V input and Ta=25° C
100% to 50% load transients at 5V input and 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 / 1.2V – 3.3V Output / 5A
POWER PRODUCTS
BP06xRAH-05B
Transient Response
Transient response: di/dt = 0.5A/µS, no external load capacitance
Vout=1.5V
Vout=1.5V
50% to 100% load transients at 5V input and Ta=25° C
100% to 50% load transients at 5V input and Ta=25° C
Vout=1.2V
Vout=1.2V
50% to 100% load transients at 5V input and Ta=25° C
100% to 50% load transients at 5V input and 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 9
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
5V Input / 1.2V – 3.3V Output / 5A
BP06xRAH-05B
Thermal Considerations
SRAH-05B
VRAH-05B
©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 / 1.2V – 3.3V Output / 5A
POWER PRODUCTS
BP06xRAH-05B
Output Voltage Set-Point Adjustment
Trim Down Test Circuit
Trim Up Test Circuit
Vo
Vo
Trim
Trim
Gnd
Gnd
Output Voltage Set-Point Adjustment
xRAH-05B330Trim Resistor Calculation
270
240
210
180
7.914
Vo – Vo, adj
Rtrim down =
– 8.27) Kohm
(
150. 01
120. 01
90.01
60.01
30.01
0. 01
2.97
3
3.04 3.07 3.1 3.13 3.17 3.2 3.23 3.27 3.3
Adjusted output voltage Vo,adj (V)
270
240
210
180
2.528
150. 01
120. 01
90.01
60.01
30.01
0. 01
Rtrim up =
– 5.11) Kohm
(
Vo, adj – Vo
3.3 3.33 3.37 3.4 3.43 3.46 3.5 3.53 3.56 3.6 3.63
Adjusted output volta ge Vo,a dj(V)
©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 11
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
5V Input / 1.2V – 3.3V Output / 5A
BP06xRAH-05B
Output Voltage Set-Point Adjustment
270
240
210
xRAH-05B250Trim Resistor Calculation
180
150.01
120.01
90.01
60.01
30.01
0.01
3.664
Vo – Vo, adj
Rtrim down =
– 6.79) Kohm
(
2.25 2.27 2.3 2.33 2.35 2.38 2.4 2.42 2.45 2.48 2.5
Adjusted output voltage Vo,adj (V)
270
240
210
180
150.01
120.01
90.01
60.01
30.01
0.01
1.72
Rtrim up =
– 4.64) Kohm
(
Vo, adj – Vo
2.5 2.52 2.55 2.58 2.6 2.63 2.65 2.67 2.7 2.73 2.75
Adjusted output voltage Vo,adj(V)
300
270.1
240.2
210.3
180.4
150.5
120.6
90.7
60.8
30.9
1
xRAH-05B180Trim Resistor Calculation
1.509
Rtrim down =
– 5.52) Kohm
(
Vo – Vo, adj
1.62 1.64 1.66 1.67 1.69 1.71 1.73 1.75 1.76 1.78 1.8
Adjusted output voltage Vo,adj (V)
300
270.1
240.2
210.3
180.4
150.5
120.6
90.7
60.8
30.9
1
1.2
Vo, adj – Vo
– 4.02) Kohm
Rtrim up =
(
1.8 1.82 1.83 1.85 1.86 1.88 1.9 1.91 1.93 1.94 1.96
Adjusted output voltage Vo,adj(V)
©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 12
NON-ISOLATED DC/DC CONVERTERS
5V Input / 1.2V – 3.3V Output / 5A
POWER PRODUCTS
BP06xRAH-05B
Output Voltage Set-Point Adjustment
270
240
xRAH-05B150Trim Resistor Calculation
210
180
150.01
120.01
90.01
2.702
Vo – Vo, adj
60.01
Rtrim down =
– 11.7) Kohm
(
30.01
0.01
1.35 1.37 1.38 1.4 1.41 1.43 1.44 1.46 1.47 1.49 1.5
Adjusted output voltage Vo,adj (V)
270
240
210
180
150.01
3.064
Rtrim up =
– 7.87) Kohm
(
120.01
90.01
Vo, adj – Vo
60.01
30.01
0.01
1.5 1.51 1.53 1.54 1.56 1.58 1.59 1.61 1.62 1.64 1.65
Adjusted output voltage Vo,adj(V)
270
240
210
xRAH-05B120Trim Resistor Calculation
180
150.01
120.01
90.01
60.01
30.01
0.01
1.545
Vo – Vo, adj
Rtrim down =
– 8.47) Kohm
(
1.08 1.09 1.1 1.12 1.13 1.14 1.15 1.16 1.18 1.19 1.2
Adjusted output voltage Vo,adj (V)
270
240
210
180
150.01
120.01
90.01
60.01
30.01
0.01
3.064
Vo, adj – Vo
Rtrim up =
– 4.64) Kohm
(
1.2 1.21 1.22 1.24 1.25 1.26 1.27 1.28 1.3 1.31 1.32
Adjusted output voltage Vo,adj(V)
©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
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
5V Input / 1.2V – 3.3V Output / 5A
BP06xRAH-05B
Mechanical
SRAH-05B
Suggested PCB Pad Layout
0.065 [1.65]
0.400
[10.16]
0.110
[2.79]
0.60
[15.24]
0.855
[21.72]
0.050
[1.27]
R0.015
[R0.38] typ
0.70
[17.78]
R0.008
[R0.20] typ
0.100 [2.54]
0.012
[0.30]
0˚-5˚
0.004 [0.10]
0.050
[1.27]
0.320
[8.13]
0.055 [1.40] 2x
0.090 [2.29] 2x
0.020
[0.51]
0.100
[2.54]
4x
0.780
[19.81]
0.400
[10.16]
Dimensions are in inches [millimeters].
Standard dimension tolerance is 0.005 [0.13] unless otherwise noted.
Pin
1
Function
Remote On/Off
+Vin
7
6
2
3
Ground
4
+Vo
5
Trim
6
No Connection
No Connection
1
3 4 5
2
7
©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 / 1.2V – 3.3V Output / 5A
POWER PRODUCTS
BP06xRAH-05B
Mechanical
0.700
[17.78]
VRAH-05B
0.050
[1.27]
0.600
[15.24]
0.265
[6.73]
min
0.050 [1.27]
0.100 [2.54]
0.400 [10.16]
0.020
[0.51]
0.308
[7.82]
Dimensions are in inches [millimeters].
Standard dimension tolerance is 0.005 [0.13] unless otherwise noted.
Pin
1
Function
Remote On/Off
+Vin
2
3
Ground
+Vo
4
5
Trim
1 2 3 4
5
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 240ºC.
©2006 Bel Fuse Inc. Specifications subject to change without notice. 02.06
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
Bel Fuse Ltd.
Bel Fuse Europe Ltd.
206 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
8F / 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
PrestonTechnology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Fax 44-1772-888366
www.belfuse.com
page 15
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