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LMZ31503: Circuit verification

Vishwajit Vivek
Prodigy 160 points
Part Number: LMZ31503

Hi,

I am converting 5 volt input to 1 volt output using the "LMZ31503RUQT" regulator. Kindly verify my circuit connection & correct me if I have given wrong connectivity. I am having doubt about connecting INHIBIT pin so kindly verify that part also & suggest me the correct method.

  • 0
    TI__Guru 50120 points

    Hi Vishwajit,

    Your schematic looks like it follows the typical schematic for Vout = 1V in Figure 26. The INH circuit also looks correct and follows the typical inhibit control in Figure 29. In this circuit, the device will startup within 10ms if VCC_1V0_EN is LOW leaving Q5 open. If VCC_1V0_EN is HIGH Q5 turns on and INH is shorted to GND effectively turning the regulator off. 

    Regards

    Jimmy