Hello,
I've been trying to design a simple circuit to switch between two Supply rails (3.3V_SW & Vbat) while giving one of them a higher priority (3.3V_SW). The circuit in simulation is showing to be not working well as shown below.
As shown above the toggling between VBAT (3.6V) & 3.3V_SW (3.3V) is unsuccessful , the transition from 3.6V goes down to 2.4V instead of 3.3V.
And I've built the circuit in person and the operation goes as follow, When the VBAT is activated the output is 3.6V (good) , when the 3.3V_SW is activated the output is 3.3V (good) . Now the problem starts when 3.3V_SW is deactivated the output is 3.3V instead of 3.6V coming from VBAT.
Would definitely appreciate it if anyone would share their insights on what might be the solution to make this circuit work as intended.