ELM92xxxx CMOS 600kHz High output current PWM step-up DC/DC converter
• Vout=3.0V (ELM9230xx) (L=2.2μH, Cout=47μF, D=MA735, Top=25°C)
Vout - Vin
Vout - Iout
3.5
3
3.3
3.2
3.1
3
1.8V
1.1V 1.5V
2.4V
2.5
2
Iout=150mA
Vin=0.9V
2.9
2.8
2.7
60mA
10mA
1.5
1
0
1
2
3
0.1
1
10
100
1000
Vin (V)
Iout(mA)
Vout1 - Top
EFFICIENCY - Iout
Vin=0.9V
3.1
3.05
3
100
90
80
70
60
50
40
30
20
10
0
Vin=1.5V, Iout=60mA
2.4V
1.8V
1.5V
1.1V
2.95
2.9
-20 -10
0
10 20 30 40 50 60 70
Top(°C)
0.1
1
10
100
1000
Iout (mA)
Vst - Iout
Load-Transient Response
2
1.5
1
200 ˩s /div
-20°C
+25°C
Vout, 50mV/div
Iout
+70°C
0.5
100mA
100 ˩A
0
0.1
1
10
100
Iout (mA)
15 - 12