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Applying voltage when LMR14203 is in shutdown mode

Other Parts Discussed in Thread: LMR14203

Is there any problem if applying Vin=Vout=12V(By another power supply) when SHDN pin is Low?

We uses this device (LMR14203) as described in page 2 of spec sheet.

  • There should not be any problem with forcing both the SW and VIN to 12V with the SHDN low.  Of course we can give not gaurantees on this.  Also, be sure that the voltage on the SW pin does not exceed the voltage on the VIN pin; since this will turn on a parasitic element within the device.

    As always the absolute and operating ratings must be respected.

    FD