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.

Issue Date

31 March 2022

Affected Parts

The following items are affected by this PCN:

  1. XEM7360-K160T
  2. XEM7360-K160TI
  3. XEM7360-K160T-3E
  4. XEM7360-K410T
  5. XEM7360-K410TI
  6. XEM7360-K410T-3E

PCB revisions EXX and later are affected by this PCN. Revisions DXX and earlier are not affected by this change. The PCB revision is indicated in silkscreen in the location shown below.

Revisions DXX and earlier are not affected. This includes date code 20171023 and earlier.

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 XEM7360 to generate several of the on-board system and VCCO supplies. Opal Kelly has identified suitable replacement parts for these supplies.

Description of the Change

The Enpirion devices on the XEM7360 are being replaced as described in the table below.

ReferenceVoltageApplicationOriginal P/nReplacement P/N
U3+U51.0 VFPGA VCCINT and VCCBRAMIntel EN5394QIInfineon IR38063MTRPBF (U3 only)
U23.3 VMiscellaneous system functionsIntel EN5322QIMicrochip MIC23153YMT
U41.8 VFPGA VCCAUX, host interfaceIntel EN5337QIMPS MP2316GD-P
U61.5 VDDR3Intel EN5394QIAlpha & Omega AOZ2262NQI-11 (now U5)
U92.0 VFPGA VCCAUX_IOIntel EP5348UIMaxim MAX25300BATA/V+
U30VADJ1Adjustable supply voltage for FPGA banks 15, 16Intel EN5322QISemtech SC186ULTRT¹
U31VADJ2Adjustable supply voltage for FPGA bank 12Intel EN5322QISemtech SC186ULTRT¹
U33VADJ3Adjustable supply voltage for FPGA bank 32Intel EN5322QISemtech SC186ULTRT¹


  1. The Semtech SC186ULTRT is capable of the same set of output voltages as the Intel EN5322QI. There is no change to VADJ configuration as described in Device Settings.