BP5277-50 [ROHM]
Non-Isolated Step-Down 3-Terminal DC/DC Converters; 非隔离降压型三端DC / DC转换器
| 型号： | BP5277-50 |
| 厂家： | 
ROHM |
| 描述： | Non-Isolated Step-Down 3-Terminal DC/DC Converters |
| 文件： | 总10页 (文件大小：407K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Data Sheet
Non-Isolated Step-Down 3-Terminal DC/DC Converters
BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15
Description
Dimensions (Unit : mm)
The BP5275 series of DC/DC converters utilize high rated
voltage.
2xC0.5
A control circuit, switching element, and coil are built in, along
with input/output capacitors, resulting in stable operation with
no external components required.
6.2 MAX.
16.3 MAX.
C0.5
High conversion efficiency, combined with an original heat
dissipation structure, enables configuration an ultra-compact
switching power supplies.
500mA output is possible with no heat sink required (800mA
with heat sink).
In addition, the ICs are pin-compatible with conventional
TO-220 LDO regulators, making replacement easy.
Low ripple voltage with high precision output ensure stable
operation against the fluctuating voltages from main power
supplies, making them ideal for use as local power supplies
(i.e. for microcontrollers).
1
2 3
0.75
1.3
2.54±0.2
0.5
(2.3)
2.54
±
0.2
Note : Dimensions without tolerance is typical.
Pin function
Pin No.
Pin Name
Vi
Function
Input terminal
GND
Applications
Power supplies for copiers, personal computers,
facsimiles, AV equipment, measuring instruments,
vending machines, security device, registers,
industrial equipment, and maintenance tools
1
2
3
GND
Vo
Output termial
Features
1) High rated voltage
2) No external parts required
3) High power conversion efficiency.
4) Heat sink unnecessary.
5) Low output ripple voltage
6) High output voltage accuracy
7) Pin-compatible with conventional 3-pin LDOs
8) Compact package.
BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15 : SIP3
List of the series
BP5277−33 BP5277−50 BP5277−90 BP5277−12 BP5277−13 BP5277−15
Unit
V
Input voltage
36
36
5
36
9
36
12
36
13
36
15
Output voltage
3.3
V
Maximum output current
(no heat sink / include heat sink)
500 / 800
76
500 / 800
83
500 / 800
88
500 / 800
90
500 / 800
91
500 / 800
93
mA
%
Power conversion
efficiency (Vi=24V)
Absolute maximum ratings (Ta=25°C)
Limits
BP5277−33 BP5277−50 BP5277−90 BP5277−12 BP5277−13 BP5277−15
Parameter
Symbol
Unit
Input voltage
36
−30 to 85
−40 to 105
100
36
−30 to 85
−40 to 105
100
36
−30 to 85
−40 to 105
100
36
−30 to 85
−40 to 105
100
36
−30 to 85
−40 to 105
100
36
−30 to 85
−40 to 105
100
Vi
V
Operating temperature range
Storage temperature range
Allowable maximum surface temperature
Maximum output current 1
°C
Topr
Tstg
°C
°C
Tcmax
IO1max
500
500
500
500
500
500
mA
mA
800
800
800
800
800
800
Maximum output current 2 (with Heat Sink)
IO2max
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© 2011 ROHM Co., Ltd. All rights reserved.
2011.12 - Rev. A
1/9
BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15
Data Sheet
Block diagram
Measurement circuit
Vi(24V)
1
Control
Circuit
1 2 3
Ii
A
Io
3
Vo
Vin
Vout
GND
A
Vi
V
V
Vo
GND
2
GND
Electrical characteristics
BP5277−33 (Unless otherwise noted, Vi=24.0V, Io1=500mA)
Parameter
Input voltage
Symbol
Vi
Min.
8.0
3.23
0
Typ.
24.0
Max.
32.0
3.37
500
800
50
Unit
V
Conditions
DC
IO1=0mA
Output voltage
VO
3.30
V
−
∗1
∗1
Output current 1
Output current 2
Line regulation
IO1
mA
mA
mV
mV
−
IO2
0
With heat sink
Vi=8 to 32V
−
5
5
Vr
Vl
−
−
Load regulation
50
IO=0 to 500mA
Output ripple voltage
Conversion efficiency
Operation frequency
mVP-P
%
40
76
900
100
−
Vp
η
71
−
−
f
kHz
∗1 Max output current should be reduced according to the surrounding temperature.
BP5277−50 (Unless otherwise noted, Vi=24.0V, Io1=500mA)
Parameter
Input voltage
Symbol
Vi
Min.
8.0
4.90
0
Typ.
24.0
Max.
32.0
5.10
500
800
50
Unit
V
Conditions
DC
Output voltage
VO
5.00
V
IO1=0mA
−
∗1
∗1
Output current 1
Output current 2
Line regulation
IO1
mA
mA
mV
mV
mVP-P
%
−
IO2
0
With heat sink
Vi=8 to 32V
−
5
5
Vr
Vl
−
−
Load regulation
50
IO=0 to 500mA
Output ripple voltage
Conversion efficiency
Operation frequency
40
83
900
100
−
Vp
η
78
−
−
f
kHz
∗1 Max output current should be reduced according to the surrounding temperature.
BP5277−90 (Unless otherwise noted, Vi=24.0V, Io1=500mA)
Parameter
Input voltage
Symbol
Vi
Min.
12.0
8.80
0
Typ.
24.0
Max.
32.0
9.20
500
800
50
Unit
V
Conditions
DC
Output voltage
VO
9.00
V
IO1=0mA
−
∗1
∗1
Output current 1
Output current 2
Line regulation
IO1
mA
mA
mV
mV
mVP-P
%
−
IO2
0
With heat sink
Vi=12 to 32V
IO=0 to 500mA
−
5
5
Vr
Vl
−
−
Load regulation
50
Output ripple voltage
Conversion efficiency
Operation frequency
40
88
900
100
−
Vp
η
83
−
−
f
kHz
∗1 Max output current should be reduced according to the surrounding temperature.
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.12 - Rev. A
2/9
BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15
Data Sheet
Electrical characteristics
BP5277-12 (Unless otherwise noted, Vi=24.0V, Io1=500mA)
Parameter
Input voltage
Symbol
Vi
Min.
15.0
11.75
0
Typ.
24.0
Max.
32.0
12.25
500
800
50
Unit
V
Conditions
Conditions
Conditions
DC
Output voltage
IO1=0mA
VO
12.00
V
−
∗1
∗1
Output current 1
Output current 2
Line regulation
IO1
mA
mA
mV
mV
mVP-P
%
−
IO2
0
With heat sink
Vi=15 to 32V
IO=0 to 500mA
−
5
5
Vr
Vl
−
−
Load regulation
50
Output ripple voltage
Conversion efficiency
Operation frequency
40
90
900
100
−
Vp
η
85
−
−
f
kHz
∗1 Max output current should be reduced according to the surrounding temperature.
BP5277−13 (Unless otherwise noted, Vi=24.0V, Io1=500mA)
Parameter
Input voltage
Symbol
Vi
Min.
16.5
12.70
0
Typ.
24.0
Max.
32.0
13.30
500
800
50
Unit
V
DC
Output voltage
VO
13.00
V
IO1=0mA
−
∗1
∗1
Output current 1
Output current 2
Line regulation
IO1
mA
mA
mV
mV
mVP-P
%
−
IO2
0
With heat sink
Vi=16.5 to 32V
IO=0 to 500mA
−
5
5
Vr
Vl
−
−
Load regulation
50
Output ripple voltage
Conversion efficiency
Operation frequency
40
91
900
100
−
Vp
η
86
−
−
f
kHz
∗1 Max output current should be reduced according to the surrounding temperature.
BP5277−15 (Unless otherwise noted, Vi=24.0V, Io1=500mA)
Parameter
Input voltage
Symbol
Vi
Min.
19.0
14.70
0
Typ.
24.0
Max.
32.0
15.30
500
800
50
Unit
V
DC
Output voltage
VO
15.00
V
IO1=0mA
−
∗1
∗1
Output current 1
Output current 2
Line regulation
IO1
mA
mA
mV
mV
mVP-P
%
−
IO2
0
With heat sink
Vi=19 to 32V
IO=0 to 500mA
−
5
5
Vr
Vl
−
−
Load regulation
50
Output ripple voltage
Conversion efficiency
Operation frequency
40
93
900
100
−
Vp
η
88
−
−
f
kHz
∗1 Max output current should be reduced according to the surrounding temperature.
OPERATION NOTES
•There is fear of destruction of the internal circuit in case that input voltage exceeds the absolute maximum ratings (36V) by such as a surge
occurred because of rapid start-up of power voltage. Be sure not to exceed absolute maximum ratings even momentarily.
•This product has a protection element for safety. The protection element is fused for safety when the current which the protection element will
fuse. Please evaluate sufficiently at using environment about the action when the output circuit shorts.
•There are some case that the module generates heat exceeding allowable maximum surface temperature when the load current which exceeds
the maximum output current is flowed. Please make design keeping enough margins not to exceed allowable maximum surface temperature at
any time under any application or any test conditions.
•The aluminum board at back part of the product is connected to GND.
Please mind the arrangement not to contact surrounding parts.
•When using the module with bent lead pin, it might be destroyed with an extreme stress for the PCB or the aluminum board. Please use the
module without bending the lead pin.
•The aluminum board in the back might come off when an excessive stress is put in the direction of the thickness. When fixing to the heat sink
etc. to use this product, please mount to PCB after fixing to the heat sink and both the heat sink and this hold to PCB.
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© 2011 ROHM Co., Ltd. All rights reserved.
2011.12 - Rev. A
3/9
BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15
Data Sheet
BP5277-33
Line Regulation (Io=500mA)
Output Voltage vs. Temperature Fluctuation (Vi=24V)
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Ta=85°C
Ta=25°C
Ta=−30°C
Ta=85°C
Ta=25°C
Ta=−30°C
0
100
200
300
400
500
5
10
15
20
25
30
35
Intput Voltage Vi [V]
Output Current Io [mA]
Power Conversion Efficiency Fluctuation (Ta=25°C)
Output Voltage vs. Input Voltage Fluctuation (Ta=25°C)
100
7
90
80
70
60
50
40
30
20
10
0
6
5
4
3
2
Vi=8V
Vi=8V
Vi=24V
Vi=32V
Vi=24V
1
Vi=32V
0
0
100
200
300
400
500
0
100
200
300
400
500
Output Current Io [mA]
Output Current Io [mA]
Derating Curve (No heat sink)
Derating Curve (With heat sink)
Vi=24V, 32V
Vi=32V
Vi=24V
1000
800
600
500
400
300
200
100
0
75°C
70°C75°C
600
400
200
0
500mA
OPERATION RANGE
OPERATION RANGE
250mA
100mA
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
Ambient Temperature Ta [°C]
Ambient Temperature Ta [°C]
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© 2011 ROHM Co., Ltd. All rights reserved.
2011.12 - Rev. A
4/9
BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15
Data Sheet
BP5277-50
Line Regulation (Io=500mA)
Output Voltage vs. Temperature Fluctuation (Vi=24V)
7
6
5
4
3
2
1
7
6
5
4
3
2
1
Ta=85°C
Ta=25°C
Ta=−30°C
Ta=85°C
Ta=25°C
Ta=−30°C
0
0
5
10
15
20
25
30
35
0
100
200
300
400
500
Intput Voltage Vi [V]
Output Current Io [mA]
Power Conversion Efficiency Fluctuation (Ta=25°C)
Output Voltage vs. Input Voltage Fluctuation (Ta=25°C)
100
7
90
80
70
60
50
40
30
20
10
0
6
5
4
3
2
Vin=8V
Vin=8V
Vin=24V
Vin=32V
Vin=24V
1
Vin=32V
0
0
100
200
300
400
500
0
100
200
300
400
500
Output Current Io [mA]
Output Current Io [mA]
Derating Curve (No heat sink)
Derating Curve (With heat sink)
Vi=24V, 32V
Vi=32V
Vi=24V
1000
800
600
400
200
0
600
500
400
300
200
100
0
75°C
65°C 73°C
500mA
OPERATION RANGE
OPERATION RANGE
150mA
100mA
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
Ambient Temperature Ta [°C]
Ambient Temperature Ta [°C]
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© 2011 ROHM Co., Ltd. All rights reserved.
2011.12 - Rev. A
5/9
BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15
Data Sheet
BP5277-90
Line Regulation (Io=500mA)
Output Voltage vs. Temperature Fluctuation (Vi=24V)
16
14
12
10
8
16
14
12
10
8
6
6
4
4
Ta=85°C
Ta=85°C
Ta=25°C
Ta=−30°C
Ta=25°C
Ta=−30°C
2
2
0
0
10
15
20
25
30
35
0
100
200
300
400
500
Intput Voltage Vi [V]
Output Current Io [mA]
Power Conversion Efficiency Fluctuation (Ta=25°C)
Output Voltage vs. Input Voltage Fluctuation (Ta=25°C)
100
16
90
80
70
60
50
40
30
20
10
0
14
12
10
8
6
Vi=12V
Vi=24V
Vi=32V
Vi=12V
4
Vi=24V
2
Vi=32V
0
0
100
200
300
400
500
0
100
200
300
400
500
Output Current Io [mA]
Output Current Io [mA]
Derating Curve (No heat sink)
Derating Curve (With heat sink)
Vi=24V, 32V
Vi=32V
Vi=24V
1000
800
600
400
200
0
600
500
400
300
200
100
0
70°C
65°C 70°C
OPERATION RANGE
400mA
OPERATION RANGE
150mA
80mA
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
Ambient Temperature Ta [°C]
Ambient Temperature Ta [°C]
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.12 - Rev. A
6/9
BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15
Data Sheet
BP5277-12
Line Regulation (Io=500mA)
Output Voltage vs. Temperature Fluctuation (Vi=24V)
16
14
12
10
8
16
14
12
10
8
6
6
4
4
Ta=85°C
Ta=25°C
Ta=−30°C
Ta=85°C
Ta=25°C
Ta=−30°C
2
2
0
0
200
10
15
20
25
30
35
0
100
300
400
500
Intput Voltage Vi [V]
Output Current Io [mA]
Power Conversion Efficiency Fluctuation (Ta=25°C)
Output Voltage vs. Input Voltage Fluctuation (Ta=25°C)
100
16
90
80
70
60
50
40
30
20
10
14
12
10
8
6
4
Vi=15V
Vi=24V
Vi=32V
Vi=15V
Vi=24V
2
Vi=32V
0
0
0
100
200
300
400
500
0
100
200
300
400
500
Output Current Io [mA]
Output Current Io [mA]
Derating Curve (No heat sink)
Derating Curve (With heat sink)
Vi=24V, 32V
Vi=32V
Vi=24V
1000
800
600
400
200
0
600
70°C
63°C 70°C
500
400
300
200
100
0
OPERATION RANGE
400mA
OPERATION RANGE
150mA
80mA
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
Ambient Temperature Ta [°C]
Ambient Temperature Ta [°C]
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.12 - Rev. A
7/9
BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15
Data Sheet
BP5277-13
Line Regulation (Io=500mA)
Output Voltage vs. Temperature Fluctuation (Vi=24V)
18
16
14
12
10
8
18
16
14
12
10
8
6
6
Ta=85°C
Ta=25°C
Ta=−30°C
Ta=85°C
Ta=25°C
Ta=−30°C
4
4
2
0
2
0
0
100
200
300
400
500
15
20
25
30
35
Intput Voltage Vi [V]
Output Current Io [mA]
Power Conversion Efficiency Fluctuation (Ta=25°C)
Output Voltage vs. Input Voltage Fluctuation (Ta=25°C)
18
100
90
80
70
60
50
40
30
20
10
0
16
14
12
10
8
6
4
Vi=16.5V
Vi=24V
Vi=32V
Vi=16.5V
Vi=24V
Vi=32V
2
0
100
200
300
400
500
0
100
200
300
400
500
Output Current Io [mA]
Output Current Io [mA]
Derating Curve (No heat sink)
Derating Curve (With heat sink)
Vi=24V, 32V
Vi=32V
Vi=24V
1000
800
600
400
200
0
600
500
400
300
200
100
0
65°C
60°C 67°C
OPERATION RANGE
OPERATION RANGE
300mA
160mA
80mA
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
Ambient Temperature Ta [°C]
Ambient Temperature Ta [°C]
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.12 - Rev. A
8/9
BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15
Data Sheet
BP5277-15
Line Regulation (Io=500mA)
Output Voltage vs. Temperature Fluctuation (Vi=24V)
18
16
14
12
10
8
18
16
14
12
10
8
6
6
4
4
Ta=85°C
Ta=25°C
Ta=−30°C
Ta=85°C
Ta=25°C
Ta=−30°C
2
2
0
0
0
100
200
300
400
500
15
20
25
30
35
Intput Voltage Vi [V]
Output Current Io [mA]
Power Conversion Efficiency Fluctuation (Ta=25°C)
Output Voltage vs. Input Voltage Fluctuation (Ta=25°C)
100
18
90
80
70
60
50
40
30
20
10
0
16
14
12
10
8
6
Vi=19V
Vi=24V
Vi=32V
Vi=19V
4
Vi=24V
2
Vi=32V
0
0
100
200
300
400
500
0
100
200
300
400
500
Output Current Io [mA]
Output Current Io [mA]
Derating Curve (No heat sink)
Derating Curve (With heat sink)
Vi=32V
Vi=24V
Vi=24V, 32V
1000
800
600
400
200
0
600
60°C 67°C
65°C
500
400
300
200
100
0
OPERATION RANGE
OPERATION RANGE
300mA
160mA
85mA
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
Ambient Temperature Ta [°C]
Ambient Temperature Ta [°C]
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2011.12 - Rev. A
9/9
Notice
N o t e s
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consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specifications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specified in this document are intended to be used with general-use electronic
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While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, fire or any other damage caused in the event of the
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The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
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R1120A
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