Other Parts Discussed in Thread: TPS62813M, TPS62813-Q1
I implemented on a board a circuitry for the 5V->1.1V conversion using the IC tps62090 following the example of figure 37 on component datasheet with the only difference of Rlow=158k and Rup=59k.
i encountered the following problem:
If I turn on the 5V with the load connected, the output does not go to 1.1V but makes attempts to turn on as if it were going into protection.
If I turn on the 5V with the load disconnected the converter reaches 1.1V and this power supply remains stable even when I connect the load.
I find more or less the same behavior certainly less accentuated by simulating the circuit. However, on the board the 1.1V does not even start on a 0.5Ohm resistive load.
could you help me?
what could be the problem?