BEL V7AH

NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
S7AH-05A / V7AH-05A 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
Description
The Bel S7AH-05A and V7AH-05A modules are a series of non-isolated, step down DC/DC power converters that operate
from a nominal 12V source. These converters are available in a range of output voltages from 0.9V to 5.0V. 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,
output voltage adjust and industrial temperature ranges (-40° to +85° C). The output is closely regulated and the efficiency is
typically 91.5% at full load. These products may be used almost anywhere low voltage silicon is employed and a 12V 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
5.0V
12V
5A
25W
91.5%
S7AH-05A500
V7AH-05A500
5.0V
12V
5A
25W
91.5%
S7AH-05A50F*
V7AH-05A50F*
3.3V
12V
5A
16.5W
88%
S7AH-05A330
V7AH-05A330
2.5V
12V
5A
12.5W
86%
S7AH-05A250
V7AH-05A250
1.8V
12V
5A
9.0W
83%
S7AH-05A180
V7AH-05A180
1.5V
12V
5A
7.5W
81%
S7AH-05A150
V7AH-05A150
1.2V
12V
5A
6.0W
78%
S7AH-05A120
V7AH-05A120
1.0V
12V
5A
5.0W
76%
S7AH-05A100
V7AH-05A100
0.9V
12V
5A
4.5W
73%
S7AH-05A090
V7AH-05A090
0.9 ~ 3.63V
12V
5A
18.2W
88%
S7AH-05A1A0
V7AH-05A1A0
0.9 ~ 3.63V
12V
5A
18.2W
88%
S7AH-05A1AF*
V7AH-05A1AF*
* F indicates fast start up.
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
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
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Absolute Maximum Ratings
Parameter
Max
Unit
-0.3
15
V
Vouten
-0.3
15
V
Ambient Temperature
Tamb
-40
85
°C
Storage Temperature
Tstor
-40
125
°C
Continuous Input Voltage
Output Enable Terminal Voltage
Symbol
Min
Vin
Typical
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
Operating Input Voltage
Module
Symbol
Min
All
Vin
10.8
Input Current
Typical
Max
Units
13.2
V
Iin
A
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
2.8
2.0
1.5
1.2
1.0
0.8
0.7
0.65
No Load Input Current
All
50
mA
Remote Off Input Current
All
3
10
mA
Input Reflected Ripple Current1
All
50
mArms
Input Reflected Ripple Current (P-P)1
All
150
mApk
I2t Inrush Current Transient
All
0.006
Turn On Voltage Threshold
All
9.8
Turn Off Voltage Threshold
All
8.5
9.0
0.012
A2s
V
9.6
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.
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
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
POWER PRODUCTS
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Output Specifications
Parameter
Module
Min
Typical
Max
4.9
3.247
2.460
1.771
1.476
1.181
0.984
0.886
5
3.3
2.5
1.8
1.5
1.2
1.0
0.9
5.1
3.353
2.540
1.829
1.524
1.219
1.016
0.914
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
15
8
8
5
5
5
5
4
30
20
20
15
15
15
15
15
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
3
3
3
2
2
2
1
1
10
10
10
10
10
10
10
10
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
40
40
35
20
15
10
6
5
70
70
70
40
30
20
12
10
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
58
51
46
27
22
17
12
10
110
100
100
65
45
45
37
35
Output Voltage Set Point 1
Symbol
Units
Vout
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
V
Load Regulation
mV
mV
Line Regulation
Regulation Over Temperature
(-40° to 85° C)
Total Output Voltage Regulation
(-40° to 85° C)
mV
mV
Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated.
1. Vin = 12V, Iout = full load, Ta = 25° C.
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
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
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Output Specifications
Parameter
Module
Output Ripple and Noise
Output Ripple and Noise
Symbol
Min
Typical
Max
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
70
70
60
50
50
40
30
30
100
100
100
100
80
80
60
60
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
30
30
30
20
20
15
15
10
60
60
60
40
40
30
30
20
2
Units
mVp-p
2
mVrms
Output Current Range
All
Iout
0
5
A
Output DC Current Limit
All
Ioutlim
6
12.5
A
Shor t Circuit Surge
A2s
Ioutsurge
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
0.9
0.60
0.70
0.85
0.85
1.05
1.1
1.1
1.8
1.2
1.4
1.7
1.7
2.1
2.2
2.2
180
130
130
130
130
130
130
130
130
250
200
200
200
200
200
200
200
200
10
20
ms
All
0
3
%
1.2 - 5.0V
0.9V - 1.0V
0
3
3
10
Ton
Turn on Time
ms
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
0.9V
Turn on Time3
0.9V - 5.0V
Overshoot at Turn On
Ton
Overshoot at Turn On3
Output Capacitance
%
All
Cout
0
2200
µF
Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated.
2. 0 - 20MHz, 22µF/6.3V X5R ceramic cap on output (10µF/10V X5R ceramic cap for 5.0V module).
3. For fast start up modules.
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
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
POWER PRODUCTS
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Output Specifications
Parameter
Transient Response
Module
Symbol
Min
Typical
Max
Units
100
150
mV
60
100
µs
100
150
mV
60
100
µs
100
150
mV
50
80
µs
100
150
mV
50
80
µs
100
150
mV
50
80
µs
100
150
mV
50
80
µs
100
150
mV
50
80
µs
100
150
mV
50
80
µs
3
∆V 50% to 100% of Max Load
Settling Time
Ts
5.0V
∆V 100% to 50% of Max Load
Settling Time
Transient Response
Ts
3
∆V 50% to 100% of Max Load
Settling Time
Ts
3.3V
∆V 100% to 50% of Max Load
Settling Time
Transient Response
Ts
3
∆V 50% to 100% of Max Load
Settling Time
Ts
2.5V
∆V 100% to 50% of Max Load
Settling Time
Transient Response
Ts
3
∆V 50% to 100% of Max Load
Settling Time
Ts
1.8V
∆V 100% to 50% of Max Load
Settling Time
Ts
Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated.
3. di/dt = 0.5A/uS, Ta = 25° C. 0.9V ~ 3.3V modules with 220µF/6.3V Tant cap (5.0V module with 100µF/10V tant cap).
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
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
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Output Specifications
Parameter
Module
Transient Response
Symbol
Min
Typical
Max
Units
80
120
mV
50
80
µs
80
120
mV
50
80
µs
80
120
mV
50
80
µs
80
120
mV
50
80
µs
80
120
mV
50
80
µs
80
120
mV
50
80
µs
80
120
mV
50
80
µs
80
120
mV
50
80
µs
3
∆V 50% to 100% of Max Load
Settling Time
Ts
1.5V
∆V 100% to 50% of Max Load
Settling Time
Ts
Transient Response
3
∆V 50% to 100% of Max Load
Settling Time
Ts
1.2V
∆V 100% to 50% of Max Load
Settling Time
Ts
Transient Response
3
∆V 50% to 100% of Max Load
Settling Time
Ts
1.0V
∆V 100% to 50% of Max Load
Settling Time
Ts
Transient Response
3
∆V 50% to 100% of Max Load
Settling Time
Ts
0.9V
∆V 100% to 50% of Max Load
Settling Time
Ts
Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated.
3. di/dt = 0.5A/uS, Ta = 25° C. 0.9V ~ 3.3V modules with 220µF/6.3V Tant cap (5.0V module with 100µF/10V tant cap).
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
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
POWER PRODUCTS
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
General Specifications
Parameter
Module
Symbol
Min
Typical
89
86
84
81
79
76
74
71
91
88
86
83
81
78
76
73
210
330
250
370
Max
Units
η
Efficiency1
%
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
Switching Frequency
Fsw
kHz
0.9V ~ 3.3V
5.0V
Output Voltage Trim Range
(Wide Trim)2
290
410
0.9V
Output Voltage Trim Range
(Narrow Trim)2
403
90
90
90
90
90
90
90
90
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
Weight
%
%
110
110
110
110
110
110
110
110
4.9
All
g
1. Vin=12V, full load and Ta=25° C.
2. See graphs on pages 17-25.
Control Specifications
Parameter
Remote On/Off 3
Module
Symbol
All
Vouten
Min
Typical
Max
Units
V
Signal Low (Unit Off)
All
-0.3
1
V
Signal High (Unit On)
All
2.8
13.2
V
3. With remote on/off pin 1 open, the module is on.
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
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
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Efficiency Data
MODULE 3.3V
100%
95%
95%
90%
90%
10.8
85%
12
80%
13.2
EFFICIENCY
EFFICIENCY
MODULE 5.0V
75%
70%
0.50
1.25
2.50
3.75
13.2
75%
1.25
2.50
3.75
OUTPUT CURRENT
OUTPUT CURRENT
MODULE 2.5V
MODULE 1.8V
95%
5.00
90%
90%
85%
85%
10.8
80%
12
75%
13.2
70%
EFFICIENCY
EFFICIENCY
12
80%
70%
0.50
5.00
10.8
85%
80%
10.8
75%
12
70%
13.2
65%
65%
0.50
1.25
2.50
3.75
5.00
OUTPUT CURRENT
©2004 Bel Fuse Inc.
60%
0.50
1.25
2.50
3.75
5.00
OUTPUT CURRENT
Specifications subject to change without notice. 03.04
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
POWER PRODUCTS
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Efficiency Data
MODULE 1.5V
MODULE 1.2V
90%
85%
80%
80%
10.8
75%
12
70%
13.2
EFFICIENCY
EFFICIENCY
85%
65%
60%
0.50
1.25
2.50
3.75
75%
70%
65%
60%
10.8
12
13.2
55%
50%
0.50
5.00
1.25
OUTPUT CURRENT
MODULE 1.0V
75%
10.8
70%
12
65%
13.2
60%
55%
2.50
3.75
OUTPUT CURRENT
5.00
EFFICIENCY
EFFICIENCY
80%
1.25
3.75
5.00
MODULE 0.9V
85%
50%
0.50
2.50
OUTPUT CURRENT
85%
80%
75%
70%
65%
60%
55%
50%
0.50
10.8
12
13.2
1.25
2.50
3.75
5.00
OUTPUT CURRENT
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 9
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Ripple and Noise
0.9V ~ 3.3V modules with 22µF/6.3V X5R ceramic cap at the output.
5.0V module with 10µF/10V X5R ceramic cap at the output.
Ripple and noise at full load and 12Vdc input,
5.0Vdc output and Ta=25° C
Ripple and noise at full load and 12Vdc input,
2.5Vdc output and Ta=25° C
©2004 Bel Fuse Inc.
Ripple and noise at full load and 12Vdc input,
3.3Vdc output and Ta=25° C
Ripple and noise at full load and 12Vdc input,
1.8Vdc output and Ta=25° C
Specifications subject to change without notice. 03.04
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
12V Input / 0.9V – 5.0V Output / 5A
POWER PRODUCTS
BP03x7AH-05A
Ripple and Noise
0.9V ~ 3.3V modules with 22µF/6.3V X5R ceramic cap at the output.
5.0V module with 10µF/10V X5R ceramic cap at the output.
Ripple and noise at full load and 12Vdc input,
1.5Vdc output and Ta=25° C
Ripple and noise at full load and 12Vdc input,
1.0Vdc output and Ta=25° C
Ripple and noise at full load and 12Vdc input,
1.2Vdc output and Ta=25° C
Ripple and noise at full load and 12Vdc input,
0.9Vdc output and Ta=25° C
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 11
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Transient Response
Transient response: di/dt = 0.5A/µS, 0.9V ~ 3.3V modules with 220µF/6.3V tant cap, 5.0V module with 100µF/10V tant cap.
Vout=5.0V
50% to 100% load transients at 12V input and Ta=25° C
Vout=3.3V
50% to 100% load transients at 12V input and Ta=25° C
©2004 Bel Fuse Inc.
Vout=5.0V
100% to 50% load transients at 12V input and Ta=25° C
Vout=3.3V
100% to 50% load transients at 12V input and Ta=25° C
Specifications subject to change without notice. 03.04
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
12V Input / 0.9V – 5.0V Output / 5A
POWER PRODUCTS
BP03x7AH-05A
Transient Response
Transient response: di/dt = 0.5A/µS, 0.9V ~ 3.3V modules with 220µF/6.3V tant cap, 5.0V module with 100µF/10V tant cap.
Vout=2.5V
50% to 100% load transients at 12V input and Ta=25° C
Vout=2.5V
100% to 50% load transients at 12V input and Ta=25° C
Vout=1.8V
50% to 100% load transients at 12V input and Ta=25° C
Vout=1.8V
100% to 50% load transients at 12V input and Ta=25° C
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 13
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Transient Response
Transient response: di/dt = 0.5A/µS, 0.9V ~ 3.3V modules with 220µF/6.3V tant cap, 5.0V module with 100µF/10V tant cap.
Vout=1.5V
50% to 100% load transients at 12V input and Ta=25° C
Vout=1.5V
100% to 50% load transients at 12V input and Ta=25° C
Vout=1.2V
50% to 100% load transients at 12V input and Ta=25° C
Vout=1.2V
100% to 50% load transients at 12V input and Ta=25° C
Vout=1.0V
50% to 100% load transients at 12V input and Ta=25° C
Vout=1.0V
100% to 50% load transients at 12V input and Ta=25° C
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
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
12V Input / 0.9V – 5.0V Output / 5A
POWER PRODUCTS
BP03x7AH-05A
Transient Response
Transient response: di/dt = 0.5A/µS, 0.9V ~ 3.3V modules with 220µF/6.3V tant cap, 5.0V module with 100µF/10V tant cap.
Vout=0.9V
50% to 100% load transients at 12V input and Ta=25° C
Vout=0.9V
100% to 50% load transients at 12V input and Ta=25° C
Thermal Considerations
Vin = 12V
x7AH-05A1A0
0.9 ~ 1.8V
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 15
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Thermal Considerations
x7AH-05A1A0
2.5V ~ 3.3V
x7AH-05A500
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
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
12V Input / 0.9V – 5.0V Output / 5A
POWER PRODUCTS
BP03x7AH-05A
Output Voltage Set-Point Adjustment
Trim Down Test Circuit
Trim Up Test Circuit
Vo
Vo
Trim
Trim
Gnd
Gnd
x7AH-05A1A0 Trim Resistor Calculation
Rtrim up =
(
3.712
– 0.261) Kohm
Vo, adj – Vo
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 17
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Output Voltage Set-Point Adjustment
x7AH-05A090 Trim Resistor Calculation
Rtrim up =
(
©2004 Bel Fuse Inc.
3.712
– 40.2) Kohm
Vo, adj – Vo
Specifications subject to change without notice. 03.04
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
12V Input / 0.9V – 5.0V Output / 5A
POWER PRODUCTS
BP03x7AH-05A
Output Voltage Set-Point Adjustment
x7AH-05A100 Trim Resistor Calculation
Rtrim down =
Rtrim up =
(
(
0.9516
– 8.47) Kohm
Vo, adj – Vo
3.712
– 3.83) Kohm
Vo, adj – Vo
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 19
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Output Voltage Set-Point Adjustment
x7AH-05A120 Trim Resistor Calculation
Rtrim down =
Rtrim up =
(
©2004 Bel Fuse Inc.
(
1.879
– 14.640) Kohm
Vo, adj – Vo
3.712
– 10) Kohm
Vo, adj – Vo
Specifications subject to change without notice. 03.04
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
12V Input / 0.9V – 5.0V Output / 5A
POWER PRODUCTS
BP03x7AH-05A
Output Voltage Set-Point Adjustment
x7AH-05A150 Trim Resistor Calculation
Rtrim down =
Rtrim up =
(
(
3.273
– 20.84) Kohm
Vo, adj – Vo
3.712
Vo, adj – Vo
– 16.2) Kohm
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 21
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Output Voltage Set-Point Adjustment
x7AH-05A180 Trim Resistor Calculation
Rtrim down =
Rtrim up =
(
©2004 Bel Fuse Inc.
(
4.669
– 24.24) Kohm
Vo, adj – Vo
3.712
– 19.6) Kohm
Vo, adj – Vo
Specifications subject to change without notice. 03.04
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 22
NON-ISOLATED DC/DC CONVERTERS
12V Input / 0.9V – 5.0V Output / 5A
POWER PRODUCTS
BP03x7AH-05A
Output Voltage Set-Point Adjustment
x7AH-05A250 Trim Resistor Calculation
Rtrim down =
Rtrim up =
(
(
7.912
– 17.94) Kohm
Vo, adj – Vo
3.712
– 13.3) Kohm
Vo, adj – Vo
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 23
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Output Voltage Set-Point Adjustment
x7AH-05A330 Trim Resistor Calculation
Rtrim down =
Rtrim up =
(
©2004 Bel Fuse Inc.
(
11.614
– 14.64) Kohm
Vo, adj – Vo
3.712
– 10) Kohm
Vo, adj – Vo
Specifications subject to change without notice. 03.04
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 24
NON-ISOLATED DC/DC CONVERTERS
12V Input / 0.9V – 5.0V Output / 5A
POWER PRODUCTS
BP03x7AH-05A
Output Voltage Set-Point Adjustment
x7AH-05A500 Trim Resistor Calculation
Rtrim down =
Rtrim up =
(
(
19.4618
– 10.83) Kohm
Vo, adj – Vo
3.712
– 6.19) Kohm
Vo, adj – Vo
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 25
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Mechanical
S7AH-05A
Suggested PCB Pad Layout
0.400
[10.16]
0.60
[15.24]
0.065 [1.65]
0.110
[2.79]
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] 0.020
[0.51]
0.100
[2.54]
4x
0.400
[10.16]
0.055 [1.40] 2x
0.090 [2.29] 2x
0.780
[19.81]
Dimensions are in inches [millimeters].
Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted.
©2004 Bel Fuse Inc.
Pin
Function
1
Remote On/Off
2
+Vin
3
Ground
4
+Vo
5
Trim
6
No Connection
7
No Connection
7
6
1 2 3 4 5
Specifications subject to change without notice. 03.04
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 26
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
12V Input / 0.9V – 5.0V Output / 5A
BP03x7AH-05A
Mechanical
0.700
[17.78]
V7AH-05A
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
Function
1
Remote On/Off
2
+Vin
3
Ground
4
+Vo
5
Trim
1 2 3 4 5
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
Bel Fuse Ltd.
8F / 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Fax 44-1772-888366
www.belfuse.com
page 27