CMOS PWM step-up DC/DC converter
ELM95xxD
• Vout=3.0V (ELM9530D) (Top=25°C, L=220ꢀH, D=MA721, C=47ꢀF)
EFFICIENCY-Vin
Vout - Vin
Efficiency,VRp-p - Vin
(Iout=1mA)
RIPPLE VOLTAGE-Vin
100
90
80
70
60
50
50
40
30
20
10
0
Efficiency
EFFICIENCY
3
2
1
VRp-p
RIPPLE VOLTAGE
Iout =1mA
3mA
10mA
0
1
2
3
0
1
2
3
Vin (V)
Vin (V)
• Vout=3.3V (ELM9533D) (Top=25°C, L=220ꢀH, D=MA721, C=47ꢀF)
EFFICIENCY-Vin
Vout - Vin
Efficiency,VRp-p - Vin
(Iout =1mA)
RIPPLE VOLTAGE-Vin
100
90
80
70
60
50
50
40
30
20
10
0
EFFICIENCY
Efficiency
3
2
1
VRp-p
RIPPLE VOLTAGE
Iout =1mA
3mA
10mA
0
1
2
3
0
1
2
3
Vin (V)
Vin (V)
• Vout=5.0V (ELM9550D) (Top=25°C, L=220ꢀH, D=MA721, C=47ꢀF)
EFFICIENCY-Vin
Vout - Vin
Efficiency,VRp-p - Vin
(Iout =1mA)
50
RIPPLE VOLTAGE-Vin
100
90
80
70
60
50
EFEFfIfCicIiEenNcyCY
40
30
20
10
0
5
4
3
VRp-p
RIPPLE VOLTAGE
Iout =1mA
3mA
10mA
0
1
2
3
4
5
0
1
2
3
Vin (V)
Vin (V)
5 - 5
ELM-TECH [ ELM Technology Corporation ]
