APW7075
Typical Characteristics (Cont.)
Light Load Operating Waveforms
1.4
1.2
Output Current vs. Start-up Voltage
Start-up Voltage(V)
IL(200mA/div)
I
OUT
=30mA, V
OUT
=3.3V
V
BAT
=2.4V, C
BAT
=10µF
C
OUT
=100µF, L=22µH
1
0.8
0.6
0.4
0.2
LX(2V/div)
L
OUT
(100mV/div)
0
0.1
1
10
100
Time(5us/div)
Output Current(mA)
Effciency vs. Output Current
100
90
80
Effciency vs. Output Current
100
90
80
V
IN
=2.4V
Effciency(%)
V
IN
=1.2V
60
50
40
30
20
10
0
0.01
Effciency(%)
70
70
60
50
40
30
V
OUT
=2.5V, L=22µH
V
IN
=1.2V
V
OUT
=3.3V, L=22µH
20
10
0
0.01
0.1
1
10
100
1000
0.1
1
10
100
1000
Output Current(mA)
Output Current(mA)
Copyright
©
ANPEC Electronics Corp.
Rev. A.5 - Aug., 2005
9
www.anpec.com.tw
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
