topic Re: MMPF0100 PMIC - SW4 VTT design reference in Power Management https://community.nxp.com/t5/Power-Management/MMPF0100-PMIC-SW4-VTT-design-reference/m-p/701377#M17 <HTML><HEAD></HEAD><BODY><P>Thx for the support.</P></BODY></HTML> Thu, 12 Oct 2017 06:21:33 GMT henrikalexander 2017-10-12T06:21:33Z MMPF0100 PMIC - SW4 VTT design reference https://community.nxp.com/t5/Power-Management/MMPF0100-PMIC-SW4-VTT-design-reference/m-p/701373#M13 <HTML><HEAD></HEAD><BODY><H1 style="color: #646464; background-color: #ffffff; border: 0px; font-weight: 200; font-size: 2rem;">Is there any design reference for&nbsp;MMPF0100 were SW4 is used as VTT and SW3 is hooked up to power DRAM.&nbsp;</H1></BODY></HTML> Mon, 09 Oct 2017 06:01:49 GMT https://community.nxp.com/t5/Power-Management/MMPF0100-PMIC-SW4-VTT-design-reference/m-p/701373#M13 henrikalexander 2017-10-09T06:01:49Z Re: MMPF0100 PMIC - SW4 VTT design reference https://community.nxp.com/t5/Power-Management/MMPF0100-PMIC-SW4-VTT-design-reference/m-p/701374#M14 <HTML><HEAD></HEAD><BODY><P><SPAN>Hi,</SPAN></P><P></P><P><SPAN>Unfortunately, there is no reference design for MMPF0100 were SW4 is used as VTT and SW3 is hooked up to power DRAM, however, this is very easy to design since SW4 regulator can be used in a VTT tracking mode for DDR memory termination, in this mode, SW4 output voltage automatically tracks half of SW3A output voltage (which would be used to provide VCC for the DDR). VTT mode can be configured by use of VTT bit in the OTP_SW4_CONFIG register.</SPAN></P><P><BR />Have a great day,<BR />Jose<BR /><BR /></P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Tue, 10 Oct 2017 20:55:31 GMT https://community.nxp.com/t5/Power-Management/MMPF0100-PMIC-SW4-VTT-design-reference/m-p/701374#M14 reyes 2017-10-10T20:55:31Z Re: MMPF0100 PMIC - SW4 VTT design reference https://community.nxp.com/t5/Power-Management/MMPF0100-PMIC-SW4-VTT-design-reference/m-p/701375#M15 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>Yes so much I understand, what i need to know is:</P><P>1. Do a need to connect SW4IN to DDR voltage. (My Guess is NO)</P><P>2. Shall i connect SW4FB to VTT. (My guess is YES)</P></BODY></HTML> Wed, 11 Oct 2017 06:25:47 GMT https://community.nxp.com/t5/Power-Management/MMPF0100-PMIC-SW4-VTT-design-reference/m-p/701375#M15 henrikalexander 2017-10-11T06:25:47Z Re: MMPF0100 PMIC - SW4 VTT design reference https://community.nxp.com/t5/Power-Management/MMPF0100-PMIC-SW4-VTT-design-reference/m-p/701376#M16 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P><SPAN>You need to connect SW4IN to SW3Lx (SW3FB) and connect SW4Lx (SW4FB) to VTT.</SPAN></P><P><BR />Have a great day,<BR />Jose<BR /><BR /></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Wed, 11 Oct 2017 20:27:42 GMT https://community.nxp.com/t5/Power-Management/MMPF0100-PMIC-SW4-VTT-design-reference/m-p/701376#M16 reyes 2017-10-11T20:27:42Z Re: MMPF0100 PMIC - SW4 VTT design reference https://community.nxp.com/t5/Power-Management/MMPF0100-PMIC-SW4-VTT-design-reference/m-p/701377#M17 <HTML><HEAD></HEAD><BODY><P>Thx for the support.</P></BODY></HTML> Thu, 12 Oct 2017 06:21:33 GMT https://community.nxp.com/t5/Power-Management/MMPF0100-PMIC-SW4-VTT-design-reference/m-p/701377#M17 henrikalexander 2017-10-12T06:21:33Z