ELM600xB 1A 1.5MHz high efficiency synchronous PWM step down DC/DC converter
http://www.elm-tech.com
■Typical characteristics
Iout-Vout
Iout-Efficiency
Vin=5V, Vout=1.8V
Vin=5V
1.90
1.88
1.86
1.84
1.82
1.80
1.78
1.76
1.74
100
90
80
70
60
50
40
30
20
�ꢀꢁꢂ
ꢃꢀꢃꢂ
1.72
1.70
10
0
0.1
0.1
1
10
100 1000 10000
1
10
100 1000 10000
Iout (mA)
Iout (mA)
Startup
Vin=5.0V, Vout=1.8V, Iload=1A
Shutdown
Vin=5.0V, Vout=1.8V, Iload=1A
Vin
Vin
5V/div
5V/div
Ven
5V/div
Vout
1V/div
Ven
5V/div
Vout
1V/div
Isw
1A/div
Isw
1A/div
200μs/div
10μs/div
Rev.1.0
7 - 6