Texas Instruments TPS65400: Is it okay to input 3.3V or 5V to the control lines (EN, IIC, etc.) before inputting PVIN and VIN?
power
switching regulator
There is no problem if the voltage value is within the recommended operating range.
Experienced FAE
Free consultation is available.
From specific product specifications to parts selection, the Company FAE will answer your technical concerns free of charge. Please feel free to contact us.