A customer wants to know the maximum power consumption in the following condition.
【Condition】
3.3V Line: Vin=3.3V , Vout=3.3V , Iout=230mA
1.5V Line: Vin=1.5V , Load = Open
AUX Line: Vin= 3.3V , Load = Open
/SHDN = High
/STBY = High
/CP = Low
【My guess 】
3.3V Line:PD = R*I^2=68mohm * (230mA)^2=3.5972mW
AUX Line: PD = R*I^2=200mohm * (150uA)^2 = about 0mW
1.5V Line: PD = R*I^2=70mohm * (10uA)^2 = about 0mW
So maximum power consumption is about 3.6 mW.
< Parameter >
R = detasheet P3 Power switch resistance at Tj=100℃ (worst case)
I = detasheet P4 Operation input quiescent current at MAX (worst case)
