ELM92271B-S Datasheet, PDF (12/15 Pages) ELM Technology Corporation – CMOS 600kHz High output current PWM step-up DC/DC converter

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
3.5
3
2.5
Iout=150mA
2
60mA
10mA
1.5
1
0
1
2
3
Vin (V)
Vout - Iout
3.3
3.2
1.1V 1.5V ^1.8V
3.1
2.4V
3 _Vin=0.9V
2.9
2.8
2.7
0.1
1
10
100 1000
Iout(mA)
100
90
80
70
60
50
40
30
20
10
0
0.1
EFFICIENCY - Iout
2.4V
1.8V
Vin=0.9V ^1.5V
1.1V
1
10
100 1000
Iout (mA)
2
1.5
1
0.5
0
0.1
Vst - Iout
-20°C
+25°C
+70°C
1
10
100
Iout (mA)
Vout1 - Top
3.1
Vin=1.5V, Iout=60mA
3.05
3
2.95
2.9
-20 -10 0 10 20 30 40 50 60 70
Top(°C)
Load-Transient Response
200 Ë©s /div
Vout, 50mV/div
Iout
100 Ë©A
100mA
15 - 12