YB1313
1x/1.5x/2x Charge Pump for White LED Application
Typical Characteristics
V
IN
=3.6V, C
IN
=C
1
=C
2
=1μF, C
OUT
=2.2μF, unless otherwise noted.
Efficiency vs. Supply Voltage (Full Load)
1.5X Mode Inrush Current 2/3 Load
100
90
Efficiency (%)
80
70
60
50
40
30
2.7
2.9
3.1
3.3
3.5
3.7
3.9
4.1
4.3
EN0/EN1
DC
Coupled
5V/Div
V
OUT
DC
Coupled
5V/Div
I
IN
DC
Coupled
500mA/Div
Supply Voltage (V)
Time=500
μ
s/div
1.5X Mode, 2/3 Load
1.5X Mode Inrush Current Full Load
V
OUT
DC
Coupled
50mV/Div
C
2-
DC
Coupled
2V/Div
V
DX
DC
Coupled
1V/Div
EN0/EN1
DC
Coupled
5V/Div
V
OUT
DC
Coupled
5V/Div
I
IN
DC
Coupled
500mA/Div
Time=1
μ
s/div
Time=500
μ
s/div
1.5X Mode, Full Load
V
OUT
DC
Coupled
50mV/Div
C
2-
DC
Coupled
2V/Div
V
DX
DC
Coupled
1V/Div
Time=1
μ
s/div
YB1313 MRev.1.1
www.yobon.com.tw
4
YOBON [ YOBON TECHNOLOGIES,INC. ]
