ELM91xxxxA CMOS PFM Step-up DC/DC converter and controller
• ELM91503xA
(FET=ELM37400FA, L=33μH, Cin=Cout=100μF, D=MA735, Vss=0V, Top=25°C)
Vout-Vin
Vout-Iout
5.5
5
5.5
5
Iout=10mA
Vin=3.0V
4.5
4
Iout=300mA
Iout=100mA
Vin=0.9V
Vin=1.1V
4.5
4
Vin=1.5V
Vin=1.8V
3.5
3
3.5
3
2.5
0
1
2
3
4
5
0.1
1
10
100
1000
Vin (V)
EFFICIENCY-Iout
RIPPLE VOLTAGE-Iout
100
90
80
70
60
50
40
600
Vin=3.0V
500
400
300
200
100
0
Vin=3.0V
Vin=1.8V
Vin=1.5V
Vin=1.8V
Vin=0.9V
Vin=1.1V
Vin=1.5V
Vin=1.1V
Vin=0.9V
0.1
1
10
100
1000
0
200
400
600
800
1000
Iout (mA)
Iout (mA)
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