Can anyone tell me if I look in a datasheet (this one for example)what is the parameter in it that gives me the value of \$\frac{1}{2}* \mu*C_{ox}*(\frac{W}{L})\$? I need this value to determine the current in saturation in a PMOS transistor.

Edit: added schematic enter image description here

  • \$\begingroup\$ For what do you want to use your MOSFET? electronics.stackexchange.com/questions/321904/… \$\endgroup\$
    – G36
    Nov 9, 2022 at 20:32
  • \$\begingroup\$ I want to use a pmos as a simple switch. I am making a pcb so i wanted to use a transistor with source connected to 5V and the gate level is either 0V or 5V but i need to know the parameters to know the current in the node. \$\endgroup\$ Nov 9, 2022 at 20:41
  • \$\begingroup\$ And the load maximum current is? In general, you picked the right MOSFET ( BSH201) for a low-power switch (100mA). \$\endgroup\$
    – G36
    Nov 9, 2022 at 20:51
  • \$\begingroup\$ I wanted the maximum current to be 300mA as it is connected to an LDO to power up an ESP32 MCU \$\endgroup\$ Nov 9, 2022 at 20:56
  • \$\begingroup\$ The limiting value for that MOSFET is 300 mA so, look for one that has lower on resistance and higher maximum current. Also, post your target schematic. \$\endgroup\$
    – Andy aka
    Nov 9, 2022 at 21:06


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Browse other questions tagged or ask your own question.