PF3000 PMIC 5V powered

patrickoreilly — Fri, 09 Jun 2017 15:51:44 GMT

Hi, I want to use a pf3000 pmic on my imx6ul design. It will not be battery backed up. V supply will be 5V, so that means I will be using the VPWR input pin. In all reference designs I have come across, the VIN pin (<4.5V) is also used, and a FET is used to switch between inputs. I presume I can leave this FET out?

Also I notice on reference designs, the SW and LDO regs are tied to the <4.5V source. Are the inputs to these regulators not connected to the VIN/VPWR pin already?

Thanks

Patrick

Re: PF3000 PMIC 5V powered

igorpadykov — Sun, 11 Jun 2017 22:59:15 GMT

Hi Patrick

for 5V fet should be used according to Table 2. Pin definitions, also
VLDO inputs are not connected to VIN/VPWR by default
http://cache.freescale.com/files/analog/doc/data_sheet/PF3000.pdf

Best regards
igor
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topic PF3000 PMIC 5V powered in i.MX Processors

PF3000 PMIC 5V powered

Re: PF3000 PMIC 5V powered