BL8091
TYPICAL PERFORMANCE CHARACTERISTICS
(Vin=12V, Vout=3.3V, L=10uH, Cin=10uF, Cout=22uF,
T
A
=25
C,
unless otherwise stated)
Efficiency (Vout=3.3V)
100
80
Vout (V)
Eff. (%)
60
40
20
0
1
10
100
Iout (mA)
1,000
Vin=5V
Vin=12V
Vin=4.5V
3.5
3
2.5
2
1.5
1
0.5
0
0
0.5
1
Iout (A)
Vin=4.5V
Vin=5V
Vin=12V
1.5
2
Vout Vs. Iout
Vout Vs. Vin
4
3.5
3
Vout (V)
Iq (mA)
IOUT=300mA
4
6
8
10
12
14
16
18
2.5
2
1.5
1
0.5
0
Vin (V)
1.4
1.2
1
0.8
0.6
0.4
0.2
0
Zero Load Operating Current Vs. Vin
Iq (mA)
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Vin (V)
Switching waveform Vin=18V, Iout=0
Switching waveform Vin=18V, Iout=2A
VIN
VOUT
I_L
VIN
VOUT
SW
I_L
SW
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