ELM92xxxx CMOS 600kHz High output current PWM step-up DC/DC converter
L=2.2μH, Cout=47μF, D=MA735, Vss=0V, Top=25°C
Condition Min. Typ. Max. Unit Note
Vout=3.0V (ELM92301x)
Parameter
Input voltage
Starting voltage
Output voltage1
Symbol
Vin
Vst No-load
7
0.9
V
V
V
1
1
Vout1 Iout=60mA, Vin=1.5V
2.925 3.000 3.075
Vout1 Vout1 Vout1
×1.005 ×1.010 ×1.020
Output voltage2
Vout2 Iout=0.1mA, Vin=1.5V
V
1
Current consumption1
Current consumption2
Oscillating frequency
Duty ratio
Iss1 Vout=Vout(T)×0.95
Iss2 Vout=Vout(T)+0.5V
Fosc Vout=Vout(T)×0.95
Duty Vout=Vout(T)×0.95
300
75
600
88
480
120
690
95
μA
μA
kHz
%
2
2
3
3
510
80
Frequency of
Fimt
12
17
340
1
kHz
mΩ
μA
3
4
5
intermittent control
On-resistance of LX switch
Leakage current of
LX switch
Ron Vout=Vout(T)×0.95
Ilxl Vout=Vlx=7V
250
Vout
: input voltage to VOUT pin
*
*
*
Vout(T) : typical value of Vout1
Remarks : test circuit No
L=2.2μH, Cout=47μF, D=MA735, Vss=0V, Top=25°C
Condition Min. Typ. Max. Unit Note
Vout=3.3V (ELM92331x)
Parameter
Input voltage
Starting voltage
Output voltage1
Symbol
Vin
Vst No-load
7
0.9
V
V
V
1
1
Vout1 Iout=60mA, Vin=1.5V
3.218 3.300 3.382
Vout1 Vout1 Vout1
×1.005 ×1.010 ×1.020
Output voltage2
Vout2 Iout=0.1mA, Vin=1.5V
V
1
Current consumption1
Current consumption2
Oscillating frequency
Duty ratio
Iss1 Vout=Vout(T)×0.95
Iss2 Vout=Vout(T)+0.5V
Fosc Vout=Vout(T)×0.95
Duty Vout=Vout(T)×0.95
320
80
600
88
510
130
690
95
μA
μA
kHz
%
2
2
3
3
510
80
Frequency of
Fimt
12
17
330
1
kHz
mΩ
μA
3
4
5
intermittent control
On-resistance of LX switch
Leakage current of
LX switch
Ron Vout=Vout(T)×0.95
Ilxl Vout=Vlx=7V
245
Vout
: input voltage to VOUT pin
*
*
*
Vout(T) : typical value of Vout1
Remarks : test circuit No
15 - 4
ELM-TECH [ ELM Technology Corporation ]
