BEL SRDB

NON-ISOLATED DC/DC CONVERTERS
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
POWER PRODUCTS
BP05SRDB-10E
SRDB-10E Series
•
Nonisolated
•
Compact, low profile surface mount package
•
Wide input
•
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
•
Active high/low
Description
The Bel SRDB-10E modules are a series of non-isolated, step down DC/DC power converters that operate from a nominal
4.5V to 13.2V source. These converters are available in a range of output voltages from 1.0V to 5.0V. The output is closely
regulated and the efficiency of the 3.3V output module is typically 88% at full load. The modules are packaged in a compact,
low profile, surface mount DIP package for ease of layout and space savings. 10A maximum output is also provided. Standard
features include remote on/off, remote sense, 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 4.5V to 13.2V 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
Active Low
Part Number
Active High
5.0V
8V - 13.2V
10A
50W
91%
SRDB-10E500
SRDB-10E50H
3.3V
4.5V - 13.2V
10A
33W
88%
SRDB-10E330
SRDB-10E33H
2.5V
4.5V - 13.2V
10A
25W
86%
SRDB-10E250
SRDB-10E25H
1.8V
4.5V - 13.2V
10A
18W
82%
SRDB-10E180
SRDB-10E18H
1.5V
4.5V - 13.2V
10A
15W
80%
SRDB-10E150
SRDB-10E15H
1.2V
4.5V - 13.2V
10A
12W
77%
SRDB-10E120
SRDB-10E12H
1.0V
4.5V - 13.2V
10A
10W
75%
SRDB-10E100
SRDB-10E10H
©2005 Bel Fuse Inc.
Specifications subject to change without notice. 03.05
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
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
BP05SRDB-10E
Absolute Maximum Ratings
Parameter
Max
Unit
-0.3
16
V
Vouten
-0.5
7
V
Ambient Temperature
Tamb
0
70
°C
Storage Temperature
Tstor
-40
105
°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
Module
Operating Input Voltage
Symbol
Min
Typical
Max
V
Vin
1.0V - 3.3V
5.0V
Input Current
Units
13.2
13.2
4.5
8
A
Iin
7.9
9.1
7.4
5.6
4.8
4
3.4
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
No Load Input Current
Vin = 4.5V
Iin
60
mA
No Load Input Current
Vin = 8.0V
Iin
80
mA
No Load Input Current
Vin = 13.2V
Iin
100
mA
Input Reflected Ripple Current1
All
40
80
mArms
Input Reflected Ripple Current (P-P)1
All
120
200
mApk
I2t Inrush Current Transient
All
0.1
0.2
A 2s
Turn On Voltage Threshold
All
4
4.5
V
Turn Off Voltage Threshold
All
3.5
4.2
V
Note: Input capacitance two 270µF/16V, ESR = 0.018 Ω max at 100kHz @ 25° C.
1. With simulated source impedance of 500nH, 5Hz to 20MHz.
©2005 Bel Fuse Inc.
Specifications subject to change without notice. 03.05
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
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
BP05SRDB-10E
Output Specifications
Parameter
Module
Output Voltage Set Point
Min
Typical
Max
4.900
3.234
2.450
1.764
1.470
1.176
0.980
5.0
3.3
2.5
1.8
1.5
1.2
1.0
5.100
3.366
2.550
1.836
1.530
1.224
1.020
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
10
7
6
6
6
5
5
20
14
12
12
12
10
10
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
3
3
2
2
2
2
2
6
6
5
5
5
5
5
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
30
24
22
20
18
16
14
60
48
44
40
36
32
28
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
43
34
30
28
26
23
21
86
68
61
57
53
47
43
1
Symbol
Units
Vout
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
V
Load Regulation
mV
Line Regulation
mV
Regulation Over Temperature
mV
Total Output Voltage Regulation
mV
Output Ripple and Noise
2
All
50
100
mVp-p
Output Ripple and Noise
2
All
15
30
mVrms
Output Current Range
All
Iout
0
10
A
Output DC Current Limit
All
Ioutlim
12
25
A
Shor t Circuit Surge
All
Ioutsurge
0.2
A2s
Turn on Time
All
Ton
20
ms
Overshoot at Turn On
All
3%
V
Output Capacitance
All
4000
µF
0.1
0
Cout
0
Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated.
1. Vin = 8V, Iout = full load, Ta = 25° C.
2. Two 270µF/16V with ESR = 0.018 Ω max at input, 0 - 20MHz BW, 1µF ceramic cap and 10µF aluminum cap at output.
©2005 Bel Fuse Inc.
Specifications subject to change without notice. 03.05
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
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
BP05SRDB-10E
Output Specifications
Parameter
Module
Symbol
Min
Typical
Max
Units
120
200
mV
Transient Response 3
∆V 50% to 100% of Max Load
Settling Time
∆V 100% to 50% of Max Load
8V to 13.2V Input
5V Output
Settling Time
Transient Response
60
100
µs
120
200
mV
Ts
60
100
µs
90
150
mV
Ts
60
100
µs
90
150
mV
60
100
µs
80
150
mV
60
100
µs
80
150
mV
60
100
µs
80
150
mV
60
100
µs
80
150
mV
60
100
µs
80
150
mV
60
100
µs
80
150
mV
60
100
µs
80
150
mV
60
100
µs
80
150
mV
60
100
µs
80
150
mV
60
100
µs
80
150
mV
60
100
µs
Ts
3
∆V 50% to 100% of Max Load
Settling Time
∆V 100% to 50% of Max Load
4.5V to 13.2V Input
3.3V Output
Settling Time
Ts
Transient Response
3
∆V 50% to 100% of Max Load
Settling Time
∆V 100% to 50% of Max Load
4.5V to 13.2V Input
2.5V Output
Settling Time
Ts
Ts
Transient Response
3
∆V 50% to 100% of Max Load
Settling Time
∆V 100% to 50% of Max Load
4.5V to 13.2V Input
1.8V Output
Settling Time
Ts
Ts
Transient Response 3
∆V 50% to 100% of Max Load
Settling Time
∆V 100% to 50% of Max Load
4.5V to 13.2V Input
1.5V Output
Settling Time
Ts
Ts
Transient Response
3
∆V 50% to 100% of Max Load
Settling Time
∆V 100% to 50% of Max Load
4.5V to 13.2V Input
1.2V Output
Settling Time
Ts
Ts
Transient Response 3
∆V 50% to 100% of Max Load
Settling Time
∆V 100% to 50% of Max Load
Settling Time
4.5V to 13.2V Input
1.0V Output
Ts
Ts
Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated.
3. di/dt = 0.5A/µS, Ta = 25° C with external 220µF Tan cap.
©2005 Bel Fuse Inc.
Specifications subject to change without notice. 03.05
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
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
BP05SRDB-10E
General Specifications
Parameter
Module
Symbol
Min
Typical
88
85
83
79
77
74
72
91
88
86
82
80
77
75
250
310
Max
η
Efficiency1
Vin = 12V, Io = Io max
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
Switching Frequency
All
Output Voltage Trim Range2
All
Remote Sense Compensation
All
Weight
All
Fsw
Units
%
90
370
110
10
10.5
kHz
%
%
g
1. Vin=12V, full load and Ta=25° C.
2. See graphs on pages 13 - 16.
Note: For 3.3V output module, when the input voltage is between 4.5Vdc to 5.0Vdc, the output voltage
trim range is 90%-105%, and the remote sense compensation is 5%.
Control Specifications
Parameter
Remote On/Off
3
Module
Symbol
All
Vouten
Signal Low (Unit Off)
Min
Typical
Max
Units
V
0
0.9
V
2.1
5
V
0
0.9
V
2.1
5
V
S7DB-10ExxH
Signal High (Unit On)
Signal Low (Unit On)
S7DB-10Exx0
Signal High (Unit Off)
3. With remote on/off pin 8 open, the module is on.
©2005 Bel Fuse Inc.
Specifications subject to change without notice. 03.05
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
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
BP05SRDB-10E
Efficiency Data
Module 3.3V
Module 5.0V
98%
96%
94%
94%
92%
90%
88%
8.0V
10.8V
86%
13.2V
84%
82%
80%
EFFICIENCY
EFFICIENCY
90%
86%
4.5V
8.0V
82%
13.2V
78%
74%
78%
70%
76%
66%
74%
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
1.0
10.0
2.0
3.0
4.0
5.0
Module 2.5V
7.0
8.0
9.0
10.0
Module 1.8V
96%
94%
92%
90%
88%
86%
84%
4.5V
8.0V
80%
13.2V
76%
EFFICIENCY
EFFICIENCY
6.0
OUTPUT CURRENT
OUTPUT CURRENT
82%
8.0V
13.2V
74%
72%
70%
68%
66%
64%
4.5V
78%
62%
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
OUTPUT CURRENT
©2005 Bel Fuse Inc.
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
OUTPUT CURRENT
Specifications subject to change without notice. 03.05
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
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
BP05SRDB-10E
Efficiency Data
Module 1.5V
92%
88%
EFFICIENCY
84%
80%
4.5V
8.0V
76%
13.2V
72%
68%
64%
60%
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
OUTPUT CURRENT
Module 1.2V
92%
88%
84%
EFFICIENCY
80%
4.5V
76%
8.0V
13.2V
72%
68%
64%
60%
56%
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
OUTPUT CURRENT
Module 1.0V
90%
86%
82%
EFFICIENCY
78%
4.5V
74%
8.0V
70%
13.2V
66%
62%
58%
54%
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
OUTPUT CURRENT
©2005 Bel Fuse Inc.
Specifications subject to change without notice. 03.05
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 7
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
BP05SRDB-10E
Ripple and Noise
1µF ceramic cap and 10µF aluminum electrolytic cap added at the output.
Ripple and noise at full load and 8Vdc input,
5.0Vdc output and Ta=25° C
Ripple and noise at full load and 8Vdc input,
2.5Vdc output and Ta=25° C
©2005 Bel Fuse Inc.
Ripple and noise at full load and 8Vdc input,
3.3Vdc output and Ta=25° C
Ripple and noise at full load and 8Vdc input,
1.8Vdc output and Ta=25° C
Specifications subject to change without notice. 03.05
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
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
POWER PRODUCTS
BP05SRDB-10E
Ripple and Noise
1µF ceramic cap and 10µF aluminum electrolytic cap added at the output.
Ripple and noise at full load and 8Vdc input,
1.5Vdc output and Ta=25° C
Ripple and noise at full load and 8Vdc input,
1.2Vdc output and Ta=25° C
Ripple and noise at full load and 8Vdc input,
1.0Vdc output and Ta=25° C
©2005 Bel Fuse Inc.
Specifications subject to change without notice. 03.05
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
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
BP05SRDB-10E
Transient Response
Transient response: di/dt = 0.5A/µS, with external 220µF Tan capacitor.
Vout=5.0V
50% to 100% load transients at 8V input and Ta=25° C
Vout=5.0V
100% to 50% load transients at 8V input and Ta=25° C
Vout=3.3V
50% to 100% load transients at 8V input and Ta=25° C
Vout=3.3V
100% to 50% load transients at 8V input and Ta=25° C
Vout=2.5V
50% to 100% load transients at 8V input and Ta=25° C
Vout=2.5V
100% to 50% load transients at 8V input and Ta=25° C
©2005 Bel Fuse Inc.
Specifications subject to change without notice. 03.05
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
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
POWER PRODUCTS
BP05SRDB-10E
Transient Response
Transient response: di/dt = 0.5A/µS, with external 220µF Tan capacitor.
Vout=1.8V
50% to 100% load transients at 8V input and Ta=25° C
Vout=1.8V
100% to 50% load transients at 8V input and Ta=25° C
Vout=1.5V
50% to 100% load transients at 8V input and Ta=25° C
Vout=1.5V
100% to 50% load transients at 8V input and Ta=25° C
Vout=1.2V
50% to 100% load transients at 8V input and Ta=25° C
Vout=1.2V
100% to 50% load transients at 8V input and Ta=25° C
©2005 Bel Fuse Inc.
Specifications subject to change without notice. 03.05
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
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
BP05SRDB-10E
Transient Response
Transient response: di/dt = 0.5A/µS, with external 220µF Tan capacitor.
Vout=1.0V
50% to 100% load transients at 8V input and Ta=25° C
Vout=1.0V
100% to 50% load transients at 8V input and Ta=25° C
Thermal Considerations
©2005 Bel Fuse Inc.
Specifications subject to change without notice. 03.05
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
POWER PRODUCTS
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
BP05SRDB-10E
Output Voltage Set-Point Adjustment
Trim Down Test Circuit
Trim Up Test Circuit
Vo
Vo
Trim
Trim
Gnd
Gnd
Output Voltage Set-Point Adjustment
SRDB-10E50x Trim Resistor Calculation
Rtrim_ down = (
61.91
− 31.61) Kohm
Vo − Vo, adj
Trim resistor value Rtrim_down(Kohm)
3000
2701
2402
2103
1804
1505
1206
907
608
309
Rtrim_ up = (
11.768
− 16.9) Kohm
Vo, adj − Vo
Trim resistor value,Rtrim_up(Kohm)
10
4.5
4.55
4.6
4.65
4.7
4.75
4.8
4.85
Adjusted output voltage Vo,adj (V)
4.9
4.95
5
5.45
5.5
270
240
210
180
150.01
120.01
90.01
60.01
30.01
0.01
5
5.05
5.1
5.15
5.2
5.25
5.3
5.35
Adjusted output voltage Vo,adj(V)
©2005 Bel Fuse Inc.
5.4
Specifications subject to change without notice. 03.05
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
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
BP05SRDB-10E
SRDB-10E33x Trim Resistor Calculation
Rtrim _ down = (
7.964
− 6.82) Kohm
Vo − Vo, adj
Trim resistor value Rtrim_down(Kohm)
Output Voltage Set-Point Adjustment
270
240
210
180
150.01
120.01
90.01
60.01
30.01
Rtrim_ up = (
2.536
− 3.65) Kohm
Vo, adj − Vo
Trim resistor value,Rtrim_up(Kohm)
0.01
2.97
3
3.04
3.33
3.37
3.07 3.1
3.13 3.17 3.2
Adjusted output voltage Vo,adj (V)
3.23
3.27
3.3
270
240
210
180
150.01
120.01
90.01
60.01
30.01
0.01
3.3
3.4
3.43 3.46
3.5
3.53
Adjusted output voltage Vo,adj(V)
3.56
3.6
3.63
7.568
− 14.43) Kohm
Rtrim_ down = (
Vo − Vo, adj
Trim resistor value Rtrim_down(Kohm)
SRDB-10E25x Trim Resistor Calculation
270
240
210
180
150.01
120.01
90.01
60.01
30.01
3.544
Rtrim_ up = (
− 10) Kohm
Vo, adj − Vo
Trim resistor value,Rtrim_up(Kohm)
0.01
2.25
2.27
2.3
2.52
2.55
2.33 2.35 2.38 2.4 2.42
Adjusted output voltage Vo,adj (V)
2.45
2.48
2.5
270
240
210
180
150.01
120.01
90.01
60.01
30.01
0.01
2.5
©2005 Bel Fuse Inc.
2.58 2.6
2.63 2.65 2.67
Adjusted output voltage Vo,adj(V)
2.7
2.73
Specifications subject to change without notice. 03.05
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 14
2.75
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
BP05SRDB-10E
SRDB-10E18x Trim Resistor Calculation
Rtrim_ down = (
3.869
− 13.84) Kohm
Vo − Vo, adj
Trim resistor value Rtrim_down(Kohm)
Output Voltage Set-Point Adjustment
270
240
210
180
150.01
120.01
90.01
60.01
30.01
Rtrim_ up = (
3.072
− 10) Kohm
Vo, adj − Vo
Trim resistor value,Rtrim_up(Kohm)
0.01
1.62
1.64
1.66
1.82
1.84
1.67 1.69 1.71 1.73 1.75
Adjusted output voltage Vo,adj (V)
1.76
1.78
1.8
270
240
210
180
150.01
120.01
90.01
60.01
30.01
0.01
1.8
1.85 1.87 1.89 1.91 1.93
Adjusted output voltage Vo,adj(V)
1.94
1.96
1.98
2.716
Rtrim_ down = (
− 11.71) Kohm
Vo − Vo, adj
Trim resistor value Rtrim_down(Kohm)
SRDB-10E15x Trim Resistor Calculation
270
240
210
180
150.01
120.01
90.01
60.01
30.01
3.072
Rtrim_ up = (
− 7.87) Kohm
Vo, adj − Vo
Trim resistor value,Rtrim_up(Kohm)
0.01
1.35
1.37
1.38
1.51
1.53
1.4 1.41 1.43 1.44 1.46
Adjusted output voltage Vo,adj (V)
1.47
1.49
1.5
270
240
210
180
150.01
120.01
90.01
60.01
30.01
0.01
1.5
©2005 Bel Fuse Inc.
1.54 1.56 1.58 1.59 1.61
Adjusted output voltage Vo,adj(V)
1.62
1.64
1.65
Specifications subject to change without notice. 03.05
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 15
NON-ISOLATED DC/DC CONVERTERS
POWER PRODUCTS
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
BP05SRDB-10E
Output Voltage Set-Point Adjustment
1.562
Rtrim _ down = (
− 8.48) Kohm
Vo − Vo, adj
Trim resistor value Rtrim_down(Kohm)
SRDB-10E12x Trim Resistor Calculation
270
240
210
180
150.01
120.01
90.01
60.01
30.01
Rtrim_ up = (
3.072
− 4.64) Kohm
Vo, adj − Vo
Trim resistor value,Rtrim_up(Kohm)
0.01
1.08
1.09
1.1
1.21
1.22
1.12 1.13 1.14 1.15 1.16
Adjusted output voltage Vo,adj (V)
1.18
1.19
1.2
270
240
210
180
150.01
120.01
90.01
60.01
30.01
0.01
1.2
1.24 1.25 1.26 1.27 1.28
Adjusted output voltage Vo,adj(V)
1.3
1.31
1.32
0.658
Rtrim _ down = (
− 4.17) Kohm
Vo − Vo, adj
Trim resistor value Rtrim_down(Kohm)
SRDB-10E10x Trim Resistor Calculation
270
240
210
180
150.01
120.01
90.01
60.01
30.01
2.536
Rtrim _ up = (
− 1) Kohm
Vo, adj − Vo
Trim resistor value,Rtrim_up(Kohm)
0.01
0.9
0.91
0.92
0.93 0.94 0.95 0.96 0.97
Adjusted output voltage Vo,adj (V)
0.98
0.99
1
1.01
1.02
1.03 1.04 1.05 1.06 1.07
Adjusted output voltage Vo,adj(V)
1.08
1.09
1.1
270
240
210
180
150.01
120.01
90.01
60.01
30.01
0.01
©2005 Bel Fuse Inc.
1
Specifications subject to change without notice. 03.05
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
POWER PRODUCTS
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
BP05SRDB-10E
1.22 [30.99]
Mechanical
0.394 [10.01]
0.67
[17.00]
0.345 ±0.010
[8.76 ±0.25]
0˚- 5˚
0.004 [0.10]
0.102 ±0.002
[2.59 ±0.05]
6X
0.197
[5.00]
5X
0.985 [25.02]
Pin
Function
1
Ground
2
Ground
3
Ground
4
Ground
5
+Vin
6
+Vin
7
Trim
8
Remote On/Off
9
Remote Sense (+)
10
+Vo
11
+Vo
12
+Vo
0.050 [1.27] 2X
0.078 [1.99] 2X
0.827 ±0.010
[21.01 ±0.25]
0.010
[0.25]
Dimensions are in inches [millimeters].
Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted.
12
11
10
9
8
7
1
2
3
4
5
6
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.
©2005 Bel Fuse Inc.
Specifications subject to change without notice. 03.05
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 17