To clarify, a buck converter will need 1A 50% of the time for an average current if 0.5A.For LDO, Iout = Iin so efficiency cannot be more than 50%.
For switcher at 100%, eff, Iin = 0.5Iout,
Hi,If the input voltage is 10V and Output voltage is 5V and Output current is 1Amp. and Lets consider 100% Efficiency. Then what is the Input current in case of LDO and what is the input current in case of switching regulator ?