5V/150mA Output
Step-down DC/DC Converter(Non-isolated)
BP5223
Absolute Maximum Ratings
Input voltage
Operating temperature range
Storage temperature range
Maximum surface temperature
Maximum output current
Parameter Symbol Limits Unit
Vi
Topr
Tstg
Tsmax
Iopeak
V
°C
°C
°C
mA
Unit Conditions
V
V
mA
V
V
Vpp
%
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
Electrical Characteristics
Input voltage range
Output voltage
Output current
Line regulation
Load regulation
Output ripple voltage
Power conversion efficiency
Parameter Symbol Typ. Max.Min.
Conversion Efficiency
90
80
70
60
50
40
30
20
10
0
0 30 90 120 15060
(Ta=25
°C, Vi=12.0V)
Output Current Io(mA)
Conversion Efficiency
Dimensions (Unit :
mm)
Application Circuit
External Component Specifications
FUSE: fuse
Use a fast-acting fuse of 0.5A
C1: Input capacitor
C2: Output capacitor
C3:
Noise removal capacitor
Pin No.
1
2
3
4
5
Function
Input terminal Vi
Not used
GND
GND
Output terminal Vo
Please verify operation and characteristics in the customer's circuit before actual usage.
Ensure that the load current does not exceed the maximum rating.
Derating Curve
Derating Curve
Operation Range
160
140
120
100
80
60
40
20
0
010-30 -20 -10 20 4030 80706050 90
Ambient Temperature Ta(
°C)
Output Current Io(mA)
Load Regulation
0
1
2
3
4
5
6
0 50 150 200 250100
(Ta=25
°C, Vi=12V)
Output Current Io(mA)
Output Voltage Vo(V)
Load Regulation
BP5223
Be sure to use fuse for safety.
1
345
C1
C2
Io
C3
Vo
Vi
L
In
+
Oscillataion Frequency Characteristics
200
180
160
140
120
100
80
60
20
40
0
0 30 90 120 15060
Output Current Io(mA)
Oscillation Frequency (kHz)
Oscillation Frequency
Surface Temperature Increase
0
4
2
6
8
10
12
14
16
18
20
0 30 90 120 15060
(Ta=25
°C, Vi=12V)
Output Current Io(mA)
Surface Temperature Increase
5413
16.8Max.4.0±1.0
2.54x4=10.16
P=2.54±0.2
1.3±0.2
0.5±0.1
3.25Max.
10.4Max.
5.25Max.
5.15Max.
0.25±0.05
17.0Max.
Mark Side
1/1
2010.03 -
Rev. B
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© 2010 ROHM Co., Ltd. All rights reserved.
Data Sheet
