I am using tps54331d and i have a circuit of 4.2V output with 2A Iout-max.At 12v input from variable supply it works fine but when i apply 4.9v (5v) it's output is not stable.
Are there any components readjustment possible for 4.2V/2A output at 5V Input other than output set point resistors?
switcher-pro tool also gives a circuit when parameters are set for 5V--4.2V/2A,but is this really possible?