When TPS54227 supplying Vin:12V and keep EN:Low, Vout is increased (rised).
(Please see below)
※Yerrow: Vin_12V / Blue :EN Low / Pink: Vout_0V~3.3V / Green : Another 1.15V line(unrelated)
If there find the reason of Vout increase(EN:Low), please let me know.
【Additional information】
・12Vin ⇒ 3.3Vout
・0.9A
・Cin: 22μF POSCAP
・Cout: 44μF ceramic (22μF×2)
・Inductor: 3.3μH (SPM6530T-3R3M)
・3.3Vout line is not connect other DC/DC and LDO.
Best regards,
Satoshi