Hi team,
Could you please help provide (or make reasonable estimation) of maximum dropout voltage under below conditions:
- Vout = 4V
- Iout = 3A
- Fsw = 500kHz
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Hi team,
Could you please help provide (or make reasonable estimation) of maximum dropout voltage under below conditions:
Hi Yu:
for dropout voltage, it can be used as below formula:
Vo=Vin*Dmax-Rds_HS*Io*Dmax-Rds_LS*Io*(1-Dmax)-Rdc_Ind*Io
Io : load current
Rds_HS: high side rdson
Rds_LS: low side rdson
Rds_Ind: Rdson of inductor
Dmax: Max duty , for LM76003 is 98.9% as typical max duty
Thanks