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PDF BP5275-25 Data sheet ( Hoja de datos )
| Número de pieza | BP5275-25 | |
| Descripción | (BP5275-xx) Non-Isolated Step-Down 3-Terminal DC/DC Converters | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Data Sheet
Non-Isolated Step-Down 3-Terminal DC/DC Converters
BP5275-18 / BP5275-25 / BP5275-33 / BP5275-50
Description
The BP5275 series of DC/DC converters utilize a synchronous
rectification system.
A control circuit, switching element, and coil are built in, along
with input/output capacitors, resulting in stable operation with
no external components required.
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).
Dimensions (Unit : mm)
13.8 MAX 2xC0.5 5.2
C0.5
2.54±0.2
0.75
1.3
2.54±0.2
Pin No.1 2 3
0.5
Note : Dimensions without tolerance is typical.
Applications
Power supplies for copiers, personal computers,
facsimiles, AV equipment, measuring instruments,
vending machines, security device, registers,
industrial equipment, and maintenance tools
www.DataSheet.co.kr
Features
1) No external parts required
2) High power conversion efficiency.
3) Heat sink unnecessary.
4) Low output ripple voltage
5) High output voltage accuracy
6) Pin-compatible with conventional 3-pin LDOs
7) Compact package.
BP5275-18 / BP5275-25 / BP5275-33 / BP5275-50 : SIP3
List of the series
Input voltage
Output voltage
Maximum output current
(no heat sink / include heat sink)
Power conversion
efficiency (Vin=12V)
BP5275−18
4.5 to 14
1.8
500 / 800
73
Absolute maximum ratings (Ta=25°C)
Parameter
Input voltage
Operating temperature range
Storage temperature range
Allowable maximum surface temperature
Maximum output current 1
Maximum output current 2 (with Heat Sink)
Symbol
VIn
Topr
Tstg
Tcmax
IO1max
IO2max
BP5275−25
4.5 to 14
2.5
500 / 800
BP5275−33
5.0 to 14
3.3
500 / 800
BP5275−50
6.0 to 14
5.0
500 / 800
78 83 88
BP5275−18
15
−30 to 85
−40 to 105
100
500
800
Limits
BP5275−25 BP5275−33
15 15
−30 to 85
−30 to 85
−40 to 105
−40 to 105
100 100
500 500
800 800
Unit
V
V
mA
%
BP5275−50
15
−30 to 85
−40 to 105
100
500
800
Unit
V
°C
°C
°C
°C
°C
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
1/7
2011.08 - Rev. A
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
BP5275-18 / BP5275-25 / BP5275-33 / BP5275-50
BP5275-25
Data Sheet
Line Regulation
2 .5 5
2 .5 4
2 .5 3
2 .5 2
2 .5 1
2 .5 0
2 .4 9
2 .4 8
Ta= 80°C
2 .4 7
Ta= 25°C
2 .4 6
Ta=−35°C
2 .4 5
0 2 4 6 8 10 12 14 16
Intput Voltage Vin [V]
Output Voltage vs. Temperature Fluctuation Vin=12V
2.55
2.54
2.53
2.52
2.51
2.50
2.49
2.48
2.47
2.46
2.45
0
Ta= 80°C
Ta= 25°C
Ta=−35°C
100 200 300 400
Output Current Io [ ]
500
Output Voltage vs. Input Voltage Fluctuation（Ta=25°C）
2.55
2.54
2.53
2.52
2.51
2.50
2.49
2.48
2.47
2.46
2.45
0
100 200 300
Output Current Io [
Vin= 6V
Vin=12V
Vin=14V
400 500
]
Power Conversion Efficiency Fluctuation Ta=25°C
100
90
80
www.DataSheet.co.kr
70
60
50
40
30
20
10
0
0
100 200 300
Output Current Io [
Vin= 6V
Vin=12V
Vin=14V
400 500
]
Derating Curve (No heat sink)
Vin=10V
Vin=12V
600 Vin=14V
65 75
500
400
333mA
300
OPERATION RANGE
250mA
200
100
0
-40 -20 0 20 40 60 80 100
Ambient Temperature Ta [ ]
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
5/7
1000
800
Derating Curve (With heat sink)
Vin=12V
Vin=14V
74
600
528mA
400 OPERATION RANGE
200
0
-40
-20
0
20 40 60 80 100
Ambient Temperature Ta [ ]
2011.08 - Rev. A
Datasheet pdf - http://www.DataSheet4U.net/
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet BP5275-25.PDF ] | |
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