ELM91xxxxA CMOS PFM Step-up DC/DC converter and controller
■Electrical characteristics (ELM91xx1xA)
L=100μH, Cin=Cout=47μF, D=MA2Z748, Vss=0V, Top=25°C
Condition Min. Typ. Max. Unit
1.755 1.800 1.845
ELM91181xA
Parameter
Symbol
Vout Iout=1mA, Vin=1.5V
Vin
Output voltage
Input voltage
Starting voltage
Holding voltage
Current consumption 1
Current consumption 2
On-resistance of LX switch
Leakage current of LX pin
Oscillating frequency
Voltage limit of LX pin
(LX switch ON)
V
V
0.9
6.0
0.9
0.7
25
5
Vst Iout=1mA
V
Vhold Iout=1mA
V
Iss1 Vout=Vout(T)×0.95
Iss2 Vout=Vout(T)+0.5V
Ron Vout=Vout(T)×0.95
Ilxl Vout=Vlx=6V
Fosc Vout=Vout(T)×0.95
10
2
μA
μA
Ω
μA
kHz
1.5
3.0
1
120
80
0.5
67
100
0.7
75
Vlxlim Vout=Vout(T)×0.95
0.9
83
V
Duty ratio
Duty Vout=Vout(T)×0.95
%
Vout: Input voltage to out pin;
Vout(T): Typ. value of Vout.
*
L=100μH, Cin=Cout=47μF, D=MA2Z748, Vss=0V, Top=25°C
Condition Min. Typ. Max. Unit
2.925 3.000 3.075
ELM91301xA
Parameter
Symbol
Vout Iout=1mA, Vin=1.5V
Vin
Output voltage
Input voltage
Starting voltage
Holding voltage
Current consumption 1
Current consumption 2
On-resistance of LX switch
Leakage current of LX pin
Oscillating frequency
Voltage limit of LX pin
(LX switch ON)
V
V
0.9
6.0
0.9
0.7
35
5
Vst Iout=1mA
V
Vhold Iout=1mA
V
Iss1 Vout=Vout(T)×0.95
Iss2 Vout=Vout(T)+0.5V
Ron Vout=Vout(T)×0.95
Ilxl Vout=Vlx=6V
Fosc Vout=Vout(T)×0.95
14
2
μA
μA
Ω
μA
kHz
0.9
1.9
1
120
80
0.5
67
100
0.7
75
Vlxlim Vout=Vout(T)×0.95
0.9
83
V
Duty ratio
Duty Vout=Vout(T)×0.95
%
Vout: Input voltage to out pin;
Vout(T): Typ. value of Vout.
*
L=100μH, Cin=Cout=47μF, D=MA2Z748, Vss=0V, Top=25°C
Condition Min. Typ. Max. Unit
3.218 3.300 3.382
ELM91331xA
Parameter
Symbol
Vout Iout=1mA, Vin=1.5V
Vin
Output voltage
Input voltage
Starting voltage
Holding voltage
Current consumption 1
Current consumption 2
On-resistance of LX switch
Leakage current of LX pin
Oscillating frequency
Voltage limit of LX pin
(LX switch ON)
V
V
0.9
6.0
0.9
0.7
35
5
Vst Iout=1mA
V
Vhold Iout=1mA
V
Iss1 Vout=Vout(T)×0.95
Iss2 Vout=Vout(T)+0.5V
Ron Vout=Vout(T)×0.95
Ilxl Vout=Vlx=6V
Fosc Vout=Vout(T)×0.95
15
2
μA
μA
Ω
μA
kHz
0.9
1.9
1
120
80
0.5
67
100
0.7
75
Vlxlim Vout=Vout(T)×0.95
0.9
83
V
Duty ratio
Duty Vout=Vout(T)×0.95
%
Vout: Input voltage to out pin;
Vout(T): Typ. value of Vout.
*
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ELM-TECH [ ELM Technology Corporation ]
