ELM600LA 800mA 1.4MHz
high efficiency synchronous PWM step down DC/DC converter
■Typical characteristics
• ELM600LA(Adj.version) : Unless otherwise noted
Vout=1.8V, Cin=10µF, Cout=22µF, L=2.2µH, R1=22kΩ, R2=11kΩ, Top=25°C
Vout-Vin
EFFICIENCY-Iout
2.4
2.0
1.6
1.2
0.8
0.4
100
80
60
40
20
0
Vin=5V
Iout=1mA
100mA
0.1
1
10
100
1000
0
1
2
3
4
5
6
Vin (V)
Iout (mA)
Start Response
Vout-Iout
Ven=Vin=5V, No load
1.9
1.8
1.7
2
1
0
5
4
3
2
1
0
Vin=5V
0
0.5
1
1.5
2
1
10
100
1000
Time (ms)
Iout (mA)
Load Transient Response
Load Transient Response
Vin=5V, Iout=10mA�600mA
Vin=5V, Iout=100mA�600mA
2.5
2
2.5
2
2
1
0
2
1
0
1.5
1.5
0
0.5
1
1.5
2
2.5
3
3.5
4
0
0.5
1
1.5
2
2.5
3
3.5
4
Time (ms)
Time (ms)
Rev.1.1
10 - 7