topic Re: IMX233 Power Supply!!! in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/IMX233-Power-Supply/m-p/209710#M12389 <HTML><HEAD></HEAD><BODY><P>Actually, the DCDC converters use DCDC_BATT pin as input. In your application, you can simply feed the 3.3V to DCDC_BATT for powering the i.MX233.</P><P>When using DCDC_BATT, you need to assert PSWITCH to power up the i.MX233. You can refer to Section 32.3.3 on the datasheet for more information.</P></BODY></HTML> Tue, 16 Oct 2012 04:29:46 GMT arthur_lai 2012-10-16T04:29:46Z IMX233 Power Supply!!! https://community.nxp.com/t5/i-MX-Processors/IMX233-Power-Supply/m-p/209709#M12388 <HTML><HEAD></HEAD><BODY><P>Hello everyone!!!</P><P></P><P>I am IMX233 for one of the projects.</P><P>As per the datasheet for powering up the IMX233 I need a 5.0V power supply. IMX233 contains internal DC - DC Converters to generate 1.8V, 1.2V and 3.3V and a Regulator to generate 2.5V from 3.3V. These regulators and DC-DC converters will take care of power sequencing as well.</P><P>Problem: I don't have a 5.0V on board to power-up DC-DC converter of IMX233 and I don't want to use a boost regulator to generate 5.0V from 3.3V and feed to IMX233.</P><UL><LI>I am thinking to power-up internal regulator to generate 2.5V from 3.3V.&nbsp; </LI><LI>Using diodes or some regulators I will generate 1.8V and 1.2V from 3.3V to power up the analog and digital core of IMX233</LI></UL><P>Anyone please suggest whether it is correct way of powering the IMX233 or I need to follow some other method and how can I take care of power sequencing which is required for IMX233.</P><P>Thanks in advance.</P><P></P><P>Best Regards</P><P>-Anand</P></BODY></HTML> Fri, 05 Oct 2012 06:54:37 GMT https://community.nxp.com/t5/i-MX-Processors/IMX233-Power-Supply/m-p/209709#M12388 Anan 2012-10-05T06:54:37Z Re: IMX233 Power Supply!!! https://community.nxp.com/t5/i-MX-Processors/IMX233-Power-Supply/m-p/209710#M12389 <HTML><HEAD></HEAD><BODY><P>Actually, the DCDC converters use DCDC_BATT pin as input. In your application, you can simply feed the 3.3V to DCDC_BATT for powering the i.MX233.</P><P>When using DCDC_BATT, you need to assert PSWITCH to power up the i.MX233. You can refer to Section 32.3.3 on the datasheet for more information.</P></BODY></HTML> Tue, 16 Oct 2012 04:29:46 GMT https://community.nxp.com/t5/i-MX-Processors/IMX233-Power-Supply/m-p/209710#M12389 arthur_lai 2012-10-16T04:29:46Z