ELM604PA 1.4MHz, 800mA dual PWM step-down converter
■Typical characteristics
• Vout=1.8V : Unless otherwise noted
Cin1=22µF, Cout1=10µF, C1=1000pF, L1=4.7µH, R1=100kΩ, R2=50kΩ, Top=25°C
Start Response
EFFICIENCY-Iout
Ven=2V, Vin=5V, No load
100
2
Vin=5V
80
60
40
20
0
1
0
2
1
0
0
2
4
6
8
0.1
1
10
100
1000
Time (ms)
Iout (mA)
Vout-Iout
Vout-Vin
1.9
1.8
1.7
2.4
2.0
1.6
1.2
0.8
0.4
Iout=1mA
100mA
Vin=5V
1
10
100
1000
0
1
2
3
4
5
Iout (mA)
Vin (V)
Load Transient Response
Load Transient Response
Vin=5V, Iout=10mA�600mA
Vin=5V, Iout=100mA�600mA
2.5
2
2.5
2
1.5
1.5
1
0
1
0
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.1.2
7 - 6
ELM-TECH [ ELM Technology Corporation ]
