ELM92 Datasheet, PDF (5/14 Pages) ELM Electronics – CMOS 600kHz High output current PWM step-up DC/DC converter

ELM92xxxx CMOS 600kHz High output current PWM step-up DC/DC converter
■Electrical characteristics (ELM92xx2x)
http://www.elm-tech.com
Vout=2.7V(ELM92272x)
Vce=Vout, L=2.2μH, Cout=47μF, D=MA735, Vss=0V, Top=25°C
Parameter
Symbol
Condition
Min. Typ. Max. Unit Note
Input voltage
Vin
7V
Starting voltage
Vst No-load
0.9 V 1
Output voltage1
Vout1 Iout=60mA, Vin=1.5V
2.633 2.700 2.767 V 1
Output voltage2
Vout2 Iout=0.1mA, Vin=1.5V
Vout1 Vout1 Vout1
×1.005 ×1.010 ×1.020
V
1
Current consumption1
Iss1 Vout=Vout(T)×0.95
280 450 μA 2
Current consumption2
Iss2 Vout=Vout(T)+0.5V
70 110 μA 2
Current consumption
in Shutdown
Isd Vout=Vout(T)×0.95, Vce=0
0.5 μA 2
Oscillating frequency
Fosc Vout=Vout(T)×0.95
510 600 690 kHz 3
Duty ratio
Duty Vout=Vout(T)×0.95
80
88
95 % 3
Frequency of
Intermittent control
Fimt
12
17 kHz 3
On-resistance of LX switch Ron Vout=Vout(T)×0.95
270 370 mΩ 4
Leakage current of LX switch Ilxl Vout=Vlx=7V
1 μA 5
CE Input voltage "H"
Vceh
0.8
V6
CE Input voltage "L"
Vcel
0.25 V 6
CE Input current "H"
Iceh
Vout=Vout(T)×0.95,
Vce=Vout(T)×0.95
0.1 μA 6
CE Input current "L"
Icel Vout=Vout(T)×0.95, Vce=0
-0.1 μA 6
* ^{1.Vout: input voltage to VOUT pin. 2.Vout(T): typical value of Vout1. 3.Vce: input voltage to CE pin. 4.Remarks: test circuit No}
Vout=3.0V(ELM92302x)
Vce=Vout, L=2.2μH, Cout=47μF, D=MA735, Vss=0V, Top=25°C
Parameter
Symbol
Condition
Min. Typ. Max. Unit Note
Input voltage
Vin
7
V
Starting voltage
Vst No-load
0.9 V 1
Output voltage1
Vout1 Iout=60mA, Vin=1.5V
2.925 3.000 3.075 V 1
Output voltage2
Vout2 Iout=0.1mA, Vin=1.5V
Vout1 Vout1 Vout1
×1.005 ×1.010 ×1.020
V
1
Current consumption1
Iss1 Vout=Vout(T)×0.95
300 480 μA 2
Current consumption2
Iss2 Vout=Vout(T)+0.5V
75 120 μA 2
Current consumption
in Shutdown
Isd Vout=Vout(T)×0.95, Vce=0
0.5 μA 2
Oscillating frequency
Fosc Vout=Vout(T)×0.95
510 600 690 kHz 3
Duty ratio
Duty Vout=Vout(T)×0.95
80
88
95 % 3
Frequency of
Intermittent control
Fimt
12 17 kHz 3
On-resistance of LX switch Ron Vout=Vout(T)×0.95
250 340 mΩ 4
Leakage current of LX switch Ilxl Vout=Vlx=7V
1 μA 5
CE Input voltage "H"
Vceh
0.8
V6
CE Input voltage "L"
Vcel
0.25 V 6
CE Input current "H"
Iceh
Vout=Vout(T)×0.95,
Vce=Vout(T)×0.95
0.1 μA 6
CE Input current "L"
Icel Vout=Vout(T)×0.95, Vce=0
-0.1 μA 6
* ^{1.Vout: input voltage to VOUT pin. 2.Vout(T): typical value of Vout1. 3.Vce: input voltage to CE pin. 4.Remarks: test circuit No}
14 - 5
Rev.1.0