HI SIR
We use TPS40422 to design a dual-phase synchronous output 0.88V power supply, the specifications are as follows
Vin:12V
Vout:0.88V
Iout:20+20A
Fsw:500kHz
Lout:0.36uH *2 phase
When we test the short circuit, the output current begins to decrease after the IC starts protection, but the output current and voltage will both fall to negative current and negative voltage.
Can this phenomenon be reasonably explained on the circuit?
