Datasheet

Negative DC/DC Converter (Non-isolated)
BP5122
Absolute Maximum Ratings
Input voltage
Output Current
Parameter
Symbol
Limits
Unit
Vi
Io
Topr
Tstg
24
0.1
V
A
°C
°C
Operating
temperature range
Storage temperature
range
Electrical Characteristics
Sample Application Circuit
SymbolParameter
Input voltage
output voltage
Rated output current
Line regulation
Output ripple voltage
Power conversion
efficiency
Switching
Frequency
Load regulation
Min. Typ. Max. Unit Conditions
Vi
Vo
V
8
20 V
lo
fSW
0.01
60
2
5
10
70
250
0.1
80
80
80
mV
mV
mVpp
A
%
kHz
See Derating Curve.
lo=0.01A to 0.1A
Vi=8V to 20VDC
(Vi=15V, lo=0.05A, SW=1, Ta=25°C unless otherwise noted)
Please verify operation and characteristics in the customer's circuit
before actual usage. Ensure that the load current does not exceed
the maximum rating.
External Component Settings
Pin No.
Terminal name
1
Output Terminal
2
GND
GND
GND
GND
GND
GND
3
4
5
6
7
8
Skip
9
Input Terminal
26.7MAX.
3.25MAX.
19.5MAX.
4
±
1.0
P=2.54
±
0.2
0.5
±
0.1
0.25
±
0.05
1.3
±
0.2
2.54 8=20.32
4.45MAX.
8.25MAX.
12.7MAX.
Marked side
Marked side
12345 67 9
Dimensions (Unit : mm)
Derating Curve
Conversion Efficiency
(Ta=25°C,Vi=15V)
Operation Range
Ambient Temperature Ta(
°C)
Output Current Io (mA)
120
100
80
60
40
20
0
0
10 20 30 40 50 60 70 80
Load Regulation
Output Current Io(mA)
100
80
60
40
20
0
0 20406080100
Output Current Io(mA)
Output Voltage Vo(V)
0 20 40 60 80 100
FUSE
Use a fuse for safety
1/1
2010.03 - Rev. B
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Data Sheet