Rohm BP5223 Step-down dc/dc converter(non-isolated) Datasheet

Data Sheet
5V/150mA Output
Step-down DC/DC Converter(Non-isolated)
BP5223
Dimensions (Unit : mm)
Absolute Maximum Ratings
17.0Max.
Unit
V
°C
°C
°C
mA
10.4Max.
Mark Side
Limits
16.8Max.
Symbol
Vi
Topr
Tstg
Tsmax
Iopeak
4.0±1.0
Parameter
Input voltage
Operating temperature range
Storage temperature range
Maximum surface temperature
Maximum output current
1
3 4
3.25Max.
5
0.25±0.05
0.5±0.1
1.3±0.2
P=2.54±0.2
5.25Max.
5.15Max.
2.54x4=10.16
Typ.
Max.
Unit
V
V
mA
V
V
Vpp
%
Conditions
DC
Vi=14V, Io=100mA
Vi=14V
Vi=8 to 18V, Io=100mA
Vi=14V, Io=0 to 100mA
Vi=14V, Io=100mA
Vi=14V, Io=150mA
Application Circuit
Pin No.
1
2
3
4
5
BP5223
1
3
4
5
LIn
Vi
Function
Input terminal Vi
Not used
GND
GND
Output terminal Vo
Oscillation Frequency
90
80
70
60
50
40
30
20
10
0
0
+
C2
Vo
C3
Be sure to use fuse for safety.
Please verify operation and characteristics in the customer's circuit before actual usage.
Ensure that the load current does not exceed the maximum rating.
Conversion Efficiency
(Ta=25°C, Vi=12.0V)
30
60
90
120
Output Current Io(mA)
150
Load Regulation
External Component Specifications
Use a fast-acting fuse of 0.5A
Load Regulation
(Ta=25°C, Vi=12V)
6
Output Voltage Vo(V)
FUSE: fuse
Oscillataion Frequency Characteristics
200
180
160
140
120
100
80
60
40
20
0
0
30
60
90
120
150
Output Current Io(mA)
Conversion Efficiency
Io
C1
Derating Curve
160
140
120
100
80
Operation Range
60
40
20
0
-30 -20 -10 0 10 20 30 40 50 60 70 80 90
Ambient Temperature Ta(°C)
Oscillation Frequency (kHz)
Parameter
Symbol Min.
Input voltage range
Output voltage
Output current
Line regulation
Load regulation
Output ripple voltage
Power conversion efficiency
Output Current Io(mA)
Derating Curve
Electrical Characteristics
C1: Input capacitor
C2: Output capacitor
5
4
3
2
1
0
0
50
100
150
200
Output Current Io(mA)
250
Surface Temperature Increase
C3: Noise removal capacitor
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© 2010 ROHM Co., Ltd. All rights reserved.
20
18
16
14
12
10
8
6
4
2
0
1/1
Surface Temperature Increase
(Ta=25°C, Vi=12V)
0
30
60
90
120
Output Current Io(mA)
150
2010.03 - Rev. B
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