BP5225_10 Datasheet, PDF (1/1 Pages) Rohm – Step-down DC/DC Converter (Non-isolated)

Data Sheet
5V/150mA Output
Step-down DC/DC Converter (Non-isolated)
BP5225
Absolute Maximum Ratings
Parameter
Symbol
Limits
Unit
Input voltage
Vi
V
Operating temperature range Topr
°C
Storage temperature range
Tstg
°C
Maximum surface temperature
Tsmax
°C
Maximum output current
Iopeak
mA
Electrical Characteristics
Parameter
Symbol Min. Typ. Max. Unit
Conditions
Input voltage range
V DC
Output voltage
V Vi=12V, Io=150mA
Output current
mA Vi=12V
Line regulation
V Vi=10.0 to 26.4V, Io=150mA
Load regulation
V Vi=12V, Io=0 to 150mA
Output ripple voltage
Vpp Vi=12V, Io=150mA
Power conversion efficiency
% Vi=12V, Io=150mA
Application Circuit
BP5225
1
345
Pin No.
Function
1 Input terminal Vi
2 Not used
3 GND
4 GND
5 Output terminal Vo
LIN
Vi
+
C1
Io
C2
Vo
C3
Use a fuse for safety
Verify proper operation under actual conditions before use. In particular, confirm that
the load current does not exceed the maximum rating.
External Component Specifications
FUSE: FUSE
Use a fast-acting fuse from 0.5 to 1A.
C1: Input Capacitor
C2: Output Capacitor
C3: Noise Removal Capacitor
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1/1
Dimensions (Unit : mm)
17.0Max.
9.7Max.
1
34 5
3.25Max.
0.5±0.1
1.3±0.2
P=2.54±0.2
2.54x 4=10.16
0.25±0.05
6.05Max.
3.65Max.
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
300
250
200
150
100
50
0
0
Vi=12V
Vi=24V
20 40 60 80 100 120 140 160
Output Current (mA)
Conversion Efficiency
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
0
Vi=12V
Vi=24V
20 40 60 80 100 120 140 160
Output Current (mA)
Load Regulation
6
5
4
3
2
Vi=12V
1
Vi=24V
0
0
50 100 150 200 250
Output Current (mA)
Temperature Characteristics
5.3
5.2
5.1
5
4.9
Vi=12V, Io=0mA
Vi=12V, Io=150mA
4.8
Vi=24V, Io=0mA
Vi=24V, Io=150mA
4.7
0 10 20 30 40 50 60 70 80
Ambient temperature (°C)
2010.03 - Rev. B