Could TCPP01-M12 be used without the N-MOSFET?

[matianfu]

We have a wide-input power management ic with buck-boost converter. 28V VBUS is not a problem. So is it possible to eliminate the N-MOSFET (at least in Sink mode)? If it is OK, what is your recommendation for connections of IN_GD, Gate, and Source pin?

[MROUV.1 · Accepted solution]

Hello,

To disable Vbus OVP (when DC/DC on Vbus is 25V compliant), you need to:

• Remove MOSFET on Vbus
• NC : SOURCE (4), GATE (5)
• IN_GD (8) : connected to 100nF
• VBUS_CTRL (6) : connected to GND

See X-NUCLEO-USBPDM1 modification.

Regards,