Opal Kelly issues this PCN to existing customers of the listed product(s) to inform them of changes and/or updates that may affect current inventory or current and future applications of the product.
31 March 2022
The following items are affected by this PCN:
PCB revisions EXX and later are affected by this PCN. Revisions 20170731 and earlier are not affected by this change. The PCB revision is indicated in silkscreen in the location shown below
Revisions 20170731 and earlier are not affected.
Revisions EXX and later are affected.
Reason for the Change
The Intel Enpirion family of power modules has been discontinued by the manufacturer. Enpirion regulators are used on the XEM7310 to generate the on-board 1.0V, 1.8V, 1.5V, and 3.3V supplies. Opal Kelly has identified suitable replacement parts for these supplies.
Description of the Change
The Enpirion devices on the XEM7310 are being replaced as described in the table below.
|Reference||Voltage||Application||Original P/n||Replacement P/N|
|U15||1.0 V||FPGA VCCINT and VCCBRAM supply||Intel EN5337QI||Richtek RT6278BHGQUF|
|U16||1.8 V||FPGA VCCAUX and VCCADC supply||Intel EP53F8QI||Microchip MIC23153YMT|
|U18||1.5 V||DDR3, FPGA VCCO supply||Intel EP53F8QI||Microchip MIC23153YMT|
|U19||3.3 V||Host interface, FPGA VCCO supply||Intel EP53F8QI||Microchip MIC23153YMT|