topic Kinetis K22F power in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/Kinetis-K22F-power/m-p/702482#M43170 <HTML><HEAD></HEAD><BODY><P>Can I use Vout33 (output of internal LDO) to actually power the device.</P></BODY></HTML> Wed, 13 Sep 2017 16:59:52 GMT philrothblum 2017-09-13T16:59:52Z Kinetis K22F power https://community.nxp.com/t5/Kinetis-Microcontrollers/Kinetis-K22F-power/m-p/702482#M43170 <HTML><HEAD></HEAD><BODY><P>Can I use Vout33 (output of internal LDO) to actually power the device.</P></BODY></HTML> Wed, 13 Sep 2017 16:59:52 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Kinetis-K22F-power/m-p/702482#M43170 philrothblum 2017-09-13T16:59:52Z Re: Kinetis K22F power https://community.nxp.com/t5/Kinetis-Microcontrollers/Kinetis-K22F-power/m-p/702483#M43171 <HTML><HEAD></HEAD><BODY><P>Hi&nbsp;Phil,</P><P>You can use Vout33 (output of internal LDO) to power the device. Please refer the 'Figure 3-49. USB regulator bus supply' of <A href="https://www.nxp.com/docs/en/reference-manual/K22P121M120SF7RM.pdf">K22P121M120SF7RM</A>.</P><P><span class="lia-inline-image-display-wrapper" image-alt="3.9.1.2.3 USB bus power supply.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/29608i3979EE6CE46554CF/image-size/large?v=v2&amp;px=999" role="button" title="3.9.1.2.3 USB bus power supply.png" alt="3.9.1.2.3 USB bus power supply.png" /></span></P><P>See also the '3.8.2 USB VREG electrical specifications' of <A href="https://www.nxp.com/docs/en/data-sheet/K22P121M120SF7.pdf">K22P121M120SF7</A>.</P><P><span class="lia-inline-image-display-wrapper" image-alt="3.8.2 USB VREG electrical specifications.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/29486i14E74275CA612F2D/image-size/large?v=v2&amp;px=999" role="button" title="3.8.2 USB VREG electrical specifications.png" alt="3.8.2 USB VREG electrical specifications.png" /></span></P><P></P><P>Best Regards,</P><P>Robin</P><P style="min- padding: 0px;">&nbsp;</P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Fri, 15 Sep 2017 06:39:18 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Kinetis-K22F-power/m-p/702483#M43171 Robin_Shen 2017-09-15T06:39:18Z