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