MOS model recommendation

QWE4562009

MOS model recommendation [Copy link]

MOS model recommendation

I need PMOS and NMOS, with SC-70-3 or SOT23 package. I pay special attention to the Vth turn-on voltage, Idss leakage current, and on-resistance Ron. The smaller the better. There are many models that I don't know the advantages of without using them. Do you have any suitable models to recommend?

Used in battery-powered devices, the battery voltage is 3-4.2V, the MOS gate is controlled by the MCU, and the MCU outputs the logic level 0V, 3.3V

maychang

The Vth turn-on voltage is not "the smaller the better", it should meet your needs.

annysky2012

How big is the Id current?

qwqwqw2088

I asked them to select the MOS tube, and they told me the package, internal resistance, and turn-on voltage, but they didn't tell me the ID.

Of course, the SOT23 package is not considered high power, but it should give the person who recommends it an idea of how much overcurrent it will have.

Commonly used, can N-type 2n7002 be used? SI2304 can be used

P-type SI2301, OK?

QWE4562009

annysky2012 posted on 2021-9-30 08:53 How big is the ID current?

100mA is enough. The start voltage is within 3V. The internal resistance is within 30 milliohms.

QWE4562009

What is the leakage current of your IDS?

QWE4562009

qwqwqw2088 Published on 2021-9-30 08:56 Let them choose the MOS tube, package, internal resistance, turn-on voltage, but not the ID. Of course, the SOT23 package is not considered high-power, but it is generally given to...

The IDS leakage current should be small