Other Parts Discussed in Thread: TPS22914
Hi, Team
I designed power mux circuits with TPS22914C and TLV742P like figure.
Circuits are operated as the following:
1. Enable TPS22914C and Vout rises to Vout_SW
2. Enable TLV742P.
3. Optionally, disable TPS22914C and Vout fall to Vout_LDO
There will be no reverse current from output to input of TLV742P because Vin_LDO > Vout_SW.
In measurement,
The output voltage rose slightly when TLV742P was enabled.
Why is output affected by Enable of LDO ?
Please give me your comment.
Best Regards,
Naoki