ELM92xxxx
CMOS 600kHz High output current PWM step-up DC/DC converter
Vout=5.0V (ELM92502x)
Parameter
Input voltage
Starting voltage
Output voltage1
Output voltage2
Current consumption1
Current consumption2
Current consumption
in Shutdown
Oscillating frequency
Duty ratio
Frequency of
Intermittent control
On-resistance of LX switch
Leakage current of LX switch
CE Input voltage "H"
CE Input voltage "L"
CE Input current "H"
CE Input current "L"
* Vout : input voltage to VOUT pin
* Vce : input voltage to CE pin
Vce=Vout, L=2.2μH, Cout=47μF, D=MA735, Vss=0V, Top=25°C
Symbol
Condition
Min.
Typ.
Max. Unit Note
Vin
7
V
Vst No-load
0.9
V
1
Vout1 Iout=60mA, Vin=3V
4.875 5.000 5.125
V
1
Vout1 Vout1 Vout1
Vout2 Iout=0.1mA, Vin=3V
V
1
×1.005 ×1.010 ×1.020
Iss1 Vout=Vout(T)×0.95
550
880
μA
2
Iss2 Vout=Vout(T)+0.5V
90
145
μA
2
Isd
Vout=Vout(T)×0.95, Vce=0
510
80
600
88
12
220
0.8
0.25
0.1
-0.1
0.5
690
95
17
300
1
μA
kHz
%
kHz
mΩ
μA
V
V
μA
μA
2
3
3
3
4
5
6
6
6
6
Fosc Vout=Vout(T)×0.95
Duty Vout=Vout(T)×0.95
Fimt
Ron Vout=Vout(T)×0.95
Ilxl Vout=Vlx=7V
Vceh
Vcel
Vout=Vout(T)×0.95,
Iceh
Vce=Vout(T)×0.95
Icel Vout=Vout(T)×0.95, Vce=0
* Vout(T) : typical value of Vout1
* Remarks : test circuit No
■Test circuits
1. Vout1, Vout2, Vst
2. Iss1, Iss2, Isd
3. Fosc, Duty, Fimt (LX pin)
* Fosc, Duty : Vin=Vout(T)×0.95
* Fimt : Vin=Vout1(1.005 to 1.020)
15 - 7
ELM-TECH [ ELM Technology Corporation ]
