How is relationship between VIN and VOU
for example, i want to design a circuit that OUTPUT is 6V .
The VIN minimum is 6+(voltage reference 0.8)=6.8V right?
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How is relationship between VIN and VOU
for example, i want to design a circuit that OUTPUT is 6V .
The VIN minimum is 6+(voltage reference 0.8)=6.8V right?
Hello, you are interested in the dropout behavior of the device it sounds.
You can approximate required vin for 6V regulation by:
6V = Vin - .410*Iout - LDCR*Iout
LDCR is DCR of output filter inductor.
I am also considering the Vdrop from power FET at max duty cycle, which is close to 100%. This is an approximation.