ELM611DA 2A 23V
high efficiency synchronous PWM step down DC/DC converter
• Vout=5.0V : Cin=10µF, Cout=22µF, L=10µH, R1=6.4kΩ, R2=1.47kΩ, Top=25°C
EFFICIENCY-Iout
Vout-Vin
Vin=12V
6.0
5.0
4.0
3.0
2.0
1.0
100
80
60
40
20
0
Iout=1mA
1A
100mA
10mA
0.1
1
10
100
1000
0
1
0
4
8
12
16
20
23
Iout (mA)
Vin (V)
Vfb-Top
Vout-Iout
Vin=12V, Iout=0.1A
5.2
5.1
5
0.95
0.94
0.93
0.92
0.91
0.90
Vin=12V
4.9
4.8
-40 -20
0
20
40
60
80
10
100
1000
Top (�)
Iout (mA)
Load Transient Response
Start Response
Vin=12V, No load
Vin=12V, Iout=1mA�1A
6
5
4
3
2
1
0
6
5
4
3
2
1
0
2
1
0
5
10 15 20 25 30 35 40
Time (ms)
0
0.1
0.2
0.3
0.4
Time (ms)
Rev.1.2
11 - 11