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BP5277-33
Technical data
10 pgs415.95 Kb0

ROHM BP5277-33 Technical data

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. 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.
23.7
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
1.0 26.4 MAX.
±
2.54±0.2
4.0
supplies, making them ideal for use as local power supplies (i.e. for microcontrollers).
Applications
Power supplies for copiers, personal computers, facsimiles, AV equipment, measuring instruments, vending machines, security device, registers, industrial equipment, and maintenance tools
Pin function
Pin No.
1
2
3
Pin Name Function
Vi
GND
Vo
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
Input voltage
Output voltage
Power conversion efficiency (Vi=24V)
BP5277
36
3.3
500 / 800
76
−33
BP5277
36
5
500 / 800
83
−50
BP5277
36
9
500 / 800
88
−90
BP5277−12
36
12
500 / 800
90
BP5277
500 / 800
2xC0.5
2.6 C0.5
BP5277
36
15
500 / 800
93
6.2 MAX.
0.5
−15
16.3 MAX.
123
0.75
1.3
2.54±0.2
Note : Dimensions without tolerance is typical.
Input terminal
GND
Output termial
−13
36
13
91
(2.3)
Unit
V
V
mA
%
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)
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Symbol
Tcmax
I
O1max
IO2max
Vi
Topr
Tstg
BP5277−33
36
−30 to 85
−40 to 105
100
500
800
BP5277
36
−30 to 85
−40 to 105
100
500
800
1/9
−50
BP5277
36
−30 to 85
−40 to 105
100
500
800
−90
Limits
BP5277
36
−30 to 85
−40 to 105
100
500
800
−12
BP5277
36
−30 to 85
−40 to 105
100
500
800
−13
2011.12 -
BP5277
36
−30 to 85
−40 to 105
100
500
800
−15
Rev. A
Unit
V
°C
°C
°C
mA
mA
BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15
Data Sheet
Block diagram
Vi(24V)
1
Control
GND
Circuit
2
3
Vo
Electrical characteristics
BP5277−33 (Unless otherwise noted, Vi=24.0V, Io1=500mA)
Parameter Symbol Unit ConditionsMin. Typ. Max.
Input voltage
Output voltage
Output current 1
Output current 2
Line regulation
Load regulation
Output ripple voltage
Conversion efficiency
Operation frequency
∗1 Max output current should be reduced according to the surrounding temperature.
Vi 8.0
O V
V
I
O1
I
O2
3.23
Vr
Vl
Vp
η
71
f
24.0
3.30
0
0
−
−
−
−
−
5
5
40
76
−
900
32.0
3.37
500
800
50
50
100
−
−
Measurement circuit
Ii
Vin
A
Vi
V
mA
mA
mV
mV
mV
kHz
GND
V
P-P
%
DC
IO1=0mA
With heat sink
Vi=8 to 32V
O=0 to 500mA
I
1 2 3
Io
Vout
A
V
Vo
∗1
∗1
GND
BP5277−50 (Unless otherwise noted, Vi=24.0V, Io1=500mA)
Parameter Symbol Unit ConditionsMin. Typ. Max.
Input voltage
Output voltage
Output current 1
Output current 2
Line regulation
Load regulation
Output ripple voltage
Conversion efficiency
Operation frequency
∗1 Max output current should be reduced according to the surrounding temperature.
Vi 8.0
V
O V
I
O1
I
O2
4.90
Vr
Vl
Vp
η
78
f
24.0
5.00
0
0
−
−
−
−
−
5
5
40
83
−
900
BP5277−90 (Unless otherwise noted, Vi=24.0V, Io1=500mA)
Parameter Symbol Unit ConditionsMin. Typ. Max.
Input voltage
Output voltage
Output current 1
Output current 2
Line regulation
Load regulation
Output ripple voltage
Conversion efficiency
Operation frequency
∗1 Max output current should be reduced according to the surrounding temperature.
Vi 12.0
V
O V
I
O1
I
O2
8.80
Vr
Vl
Vp
η
83
f
24.0
9.00
0
0
−
−
−
−
−
5
5
40
88
−
900
32.0
5.10
500
800
50
50
100
−
−
32.0
9.20
500
800
50
50
100
−
−
mA
mA
mV
mV
mV
kHz
mA
mA
mV
mV
mV
kHz
V
P-P
%
V
P-P
%
DC
IO1=0mA
With heat sink
Vi=8 to 32V
O=0 to 500mA
I
DC
IO1=0mA
With heat sink
Vi=12 to 32V
O=0 to 500mA
I
∗1
∗1
∗1
∗1
www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved.
2/9
2011.12 -
Rev. A
BP5277-33 / BP5277-50 / BP5277-90 / BP5277-12 / BP5277-13 / BP5277-15
Electrical characteristics
BP5277-12 (Unless otherwise noted, Vi=24.0V, Io1=500mA)
Parameter Symbol Unit ConditionsMin. Typ. Max.
Input voltage
Output voltage
Output current 1
Output current 2
Line regulation
Load regulation
Output ripple voltage
Conversion efficiency
Operation frequency
∗1 Max output current should be reduced according to the surrounding temperature.
Vi 15.0
V
O V
11.75
I
O1
I
O2
Vr
Vl
Vp
η
85
f 900
24.0
12.00
0
0
−
−
−
−
−
5
5
40
90
−
BP5277−13 (Unless otherwise noted, Vi=24.0V, Io1=500mA)
Parameter Symbol Unit ConditionsMin. Typ. Max.
Input voltage
Output voltage
Output current 1
Output current 2
Line regulation
Load regulation
Output ripple voltage
Conversion efficiency
Operation frequency
∗1 Max output current should be reduced according to the surrounding temperature.
Vi 16.5
V
O V
12.70
I
O1
I
O2
Vr
Vl
Vp
η
86
f
24.0
13.00
0
0
−
−
−
−
−
5
5
40
91
−
900
32.0
12.25
500
800
50
50
100
−
−
32.0
13.30
500
800
50
50
100
−
−
mV
mV
V
mA
mA
mV
mV
P-P
%
kHz
V
mA
mA
mV
mV
P-P
%
kHz
DC
IO1=0mA
With heat sink
Vi=15 to 32V
O=0 to 500mA
I
DC
IO1=0mA
With heat sink
Vi=16.5 to 32V
O=0 to 500mA
I
∗1
∗1
∗1
∗1
Data Sheet
BP5277−15 (Unless otherwise noted, Vi=24.0V, Io1=500mA)
Parameter Symbol Unit ConditionsMin. Typ. Max.
Input voltage
Output voltage
Output current 1
Output current 2
Line regulation
Load regulation
Output ripple voltage
Conversion efficiency
Operation frequency
∗1 Max output current should be reduced according to the surrounding temperature.
Vi 19.0
V
O V
14.70
I
O1
I
O2
Vr
Vl
Vp
η
88
f 900
24.0
15.00
0
0
−
−
−
−
−
5
5
40
93
−
32.0
15.30
500
800
50
50
100
−
−
mV
V
mA
mA
mV
mV
P-P
%
kHz
DC
IO1=0mA
With heat sink
Vi=19 to 32V
O=0 to 500mA
I
∗1
∗1
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.
www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved.
3/9
2011.12 -
Rev. A
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