Hello,
I am using MSP432 for controlling an actuator which requires a PWM of 5 V at 50 Hz. Since the chip provides a 3.3 V output, I have used a TPS 22962 as a Load switch to provide 5 V to the actuator.
The 5 V to source the TPS22962 is obtained from a DC to DC converter which provides 5 V
.
While testing the Load Switch with a power supply from my lab, I found that the output voltage was not coming as expected at a frequency of 50 Hz. The value of bias capacitance and resistor are as follows(obtained from WEBENCH):
1) Cin= 10 uF,4.32 mOhms
2) Cout= 100 nF, 0.28 Ohms
3) Rout= 9.42 Ohms
I have 2 questions regarding this:
1) Is there an alternative to provide a 5 V to the actuator without using the on-board 5 V pin?
2) Why could the circuit not provide the necessary output voltage?
