Other Parts Discussed in Thread: TPS74401, LP38798, TPS7B4254-Q1, TPS709-Q1
Hello,
May I have some questions regarding RCP scheme of LDO devices? In 8.1.19 in TPS7A85 datasheet, it suggests to add a schottky diode to prevent the reverse current damage.
(1) I notice some other devices do not include this suggestion in the datasheet - TPS74401 for instance. I wonder if those devices have another protection scheme integrated in the IC. Maybe the schottky diode is integrated in the package?
(2) As the concern of reverse current comes from its inherent body diode structure from OUT to IN, I believe LDO devices with P-FET such as LP38798 do not have concern regarding the reverse current. There would be the body diode from IN to OUT for P-channel pass-FET. Is my understanding correct?