BP5220A 查看數據表（PDF） - ROHM Semiconductor
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BP5220A Datasheet PDF : 9 Pages
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BP5220A/BP5221A/BP5222A
Data Sheet
BP5222A (Unless otherwise noted : Vi=20V, Io=0.25A, SW=1, Ta=25˚C)
Parameter
Input voltage
Output voltage
Output current
Symbol
Vi
VO
IO
Min.
15
11.2
Typ. Max.
38
12
12.8
0.5
Line regulation
22
50
Load regulation
18
50
Output ripple voltage
29
70
Power conversion efficiency
75
90
Switching frequency
fSW
190
CTL pin ON resistance
RON
4.7
CTL pin OFF resistance
ROFF
200
Unit
V
V
A
mV
mV
mVPP
%
kHz
Conditions
Vi=15V to 38V
Io=0.05A to 0.5A
Io=0.5A
Vo>11.2V
Vo<0.1V, SW=2
Measurement circuit
A Input
V
BP5220A / BP5221A / BP5222A
9
7654321
SW
1
2
+
+
A Output
Vf
f ; Frequency counter
Fig.1
T
Switching frequency=1/T
Output ripple voltage
Please note that output ripple voltage depends on the type and characteristics of the output capacitor.
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3/7
2010.03 - Rev. B
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