ELM92-SERIES Datasheet, PDF (3/14 Pages) ELM Technology Corporation – CMOS 600kHz High output current PWM step-up

ELM92xxxx CMOS 600kHz High output current PWM step-up DC/DC converter
■Electrical characteristics (ELM92xx1x)
http://www.elm-tech.com
Vout=2.7V(ELM92271x)
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
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
* ^{Vout: input voltage to VOUT pin}
* ^{Vout(T): typical value of Vout1}
* ^{Remarks: test circuit No}
Vout=3.0V(ELM92301x)
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
2.925 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
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
* ^{Vout: input voltage to VOUT pin}
* ^{Vout(T): typical value of Vout1}
* ^{Remarks: test circuit No}
14 - 3
Rev.1.0