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  <xs:element id="mchp_VariousOtherCountriesbesidesUnitedStatesandThailandMember" abstract="true" name="VariousOtherCountriesbesidesUnitedStatesandThailandMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_A2015SeniorSubordinatedConvertibleDebtMember" abstract="true" name="A2015SeniorSubordinatedConvertibleDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_A2017SeniorSubordinatedConvertibleDebtMember" abstract="true" name="A2017SeniorSubordinatedConvertibleDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_A2020SeniorSubordinatedConvertibleDebtMember" abstract="true" name="A2020SeniorSubordinatedConvertibleDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_A2024SeniorSubordinatedConvertibleDebtMember" abstract="true" name="A2024SeniorSubordinatedConvertibleDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_A2017JuniorSubordinatedConvertibleDebtMember" abstract="true" name="A2017JuniorSubordinatedConvertibleDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_A2026SeniorSubordinatedConvertibleDebtMember" abstract="true" name="A2026SeniorSubordinatedConvertibleDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_DebtInstrumentConvertibleDebtConversionPrice" abstract="false" name="DebtInstrumentConvertibleDebtConversionPrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="mchp_SpecialChargesOther" abstract="false" name="SpecialChargesOther" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mchp_SeniorIndebtednessMember" abstract="true" name="SeniorIndebtednessMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_SeniorUnsecuredNotes2025Member" abstract="true" name="SeniorUnsecuredNotes2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_SeniorUnsecuredNotes2028Member" abstract="true" name="SeniorUnsecuredNotes2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_SeniorUnsecuredNotes2029Member" abstract="true" name="SeniorUnsecuredNotes2029Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_SeniorUnsecuredNotes2030Member" abstract="true" name="SeniorUnsecuredNotes2030Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_AmendedAndRestatedCreditAgreementMember" abstract="true" name="AmendedAndRestatedCreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_DebtInstrumentConvertibleConversionRatioIncrementalShareFactorAdjustedForDividends" abstract="false" name="DebtInstrumentConvertibleConversionRatioIncrementalShareFactorAdjustedForDividends" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="mchp_DebtInstrumentConvertibleConversionRatioMaximumConversionRateAdjustedForPaidDividends" abstract="false" name="DebtInstrumentConvertibleConversionRatioMaximumConversionRateAdjustedForPaidDividends" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="mchp_SeniorUnsecuredNotes09832024Member" abstract="true" name="SeniorUnsecuredNotes09832024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_SeniorUnsecuredNotes09722024Member" abstract="true" name="SeniorUnsecuredNotes09722024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_SeniorUnsecuredNotes26702023Member" abstract="true" name="SeniorUnsecuredNotes26702023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_SeniorUnsecuredNotes2023Member" abstract="true" name="SeniorUnsecuredNotes2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_TermLoanFacilityMember" abstract="true" name="TermLoanFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_TotalConsiderationExtinguishmentOfDebt" abstract="false" name="TotalConsiderationExtinguishmentOfDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mchp_DebtCovenantAxis" abstract="true" name="DebtCovenantAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="mchp_DebtCovenantDomain" abstract="true" name="DebtCovenantDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_CovenantPeriodOneMember" abstract="true" name="CovenantPeriodOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_CovenantPeriodTwoMember" abstract="true" name="CovenantPeriodTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_CovenantPeriodThreeMember" abstract="true" name="CovenantPeriodThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_CovenantPeriodFourMember" abstract="true" name="CovenantPeriodFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_CovenantPeriodFiveMember" abstract="true" name="CovenantPeriodFiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_CovenantPeriodSixMember" abstract="true" name="CovenantPeriodSixMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_CovenantPeriodSevenMember" abstract="true" name="CovenantPeriodSevenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_CovenantPeriodEightMember" abstract="true" name="CovenantPeriodEightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_CovenantPeriodNineMember" abstract="true" name="CovenantPeriodNineMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_AdjustedTermSOFRRateMember" abstract="true" name="AdjustedTermSOFRRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_AdjustedEURIBORRateMember" abstract="true" name="AdjustedEURIBORRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_FederalFundsRateMember" abstract="true" name="FederalFundsRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_LineOfCreditFacilityIncrementalBorrowingCapacity" abstract="false" name="LineOfCreditFacilityIncrementalBorrowingCapacity" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mchp_DebtInstrumentCovenantTotalLeverageRatioMaximum" abstract="false" name="DebtInstrumentCovenantTotalLeverageRatioMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="mchp_DebtInstrumentRedemptionPricePercentageChangeInControlEvent" abstract="false" name="DebtInstrumentRedemptionPricePercentageChangeInControlEvent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="mchp_IntangibleAssetsReclassifiedDuringThePeriod" abstract="false" name="IntangibleAssetsReclassifiedDuringThePeriod" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mchp_OtherReceivablesMember" abstract="true" name="OtherReceivablesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_SalesRelatedReservesAndRefundLiabilities" abstract="false" name="SalesRelatedReservesAndRefundLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mchp_AssetsLesseeAbstract" abstract="true" name="AssetsLesseeAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="mchp_LeaseLiabilityCurrentAbstract" abstract="true" name="LeaseLiabilityCurrentAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="mchp_LeaseLiabilityNoncurrentAbstract" abstract="true" name="LeaseLiabilityNoncurrentAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="mchp_EffectiveIncomeTaxRateReconciliationImputedInterestIncomeAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationImputedInterestIncomeAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mchp_EffectiveIncomeTaxRateReconciliationImputedInterestIncomePercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationImputedInterestIncomePercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="mchp_EffectiveIncomeTaxRateReconciliationEffectsOfForeignOperationsOtherNetOfForeignTaxCredits" abstract="false" name="EffectiveIncomeTaxRateReconciliationEffectsOfForeignOperationsOtherNetOfForeignTaxCredits" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mchp_EffectiveIncomeTaxRateReconciliationBusinessRealignmentAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationBusinessRealignmentAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mchp_ForeignTaxAuthorityandFederalandStateJurisdictionMember" abstract="true" name="ForeignTaxAuthorityandFederalandStateJurisdictionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_MalaysianIRBMember" abstract="true" name="MalaysianIRBMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_UnrecognizedTaxPositionRemeasurementMember" abstract="true" name="UnrecognizedTaxPositionRemeasurementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_DeferredTaxAssetDisallowedExpenseCarryforwardAmount" abstract="false" name="DeferredTaxAssetDisallowedExpenseCarryforwardAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mchp_TaxCutsAndJobsActTransitionTaxForAccumulatedForeignEarningsPercentageOfLiabilityPayableYearOneThroughFive" abstract="false" name="TaxCutsAndJobsActTransitionTaxForAccumulatedForeignEarningsPercentageOfLiabilityPayableYearOneThroughFive" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="mchp_TaxCutsAndJobsActTransitionTaxForAccumulatedForeignEarningsLiabilityExpected" abstract="false" name="TaxCutsAndJobsActTransitionTaxForAccumulatedForeignEarningsLiabilityExpected" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mchp_TaxCutsAndJobsActTransitionTaxForAccumulatedForeignEarningsPercentageOfLiabilityPayableYearSix" abstract="false" name="TaxCutsAndJobsActTransitionTaxForAccumulatedForeignEarningsPercentageOfLiabilityPayableYearSix" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="mchp_TaxCutsAndJobsActTransitionTaxForAccumulatedForeignEarningsPercentageOfLiabilityPayableYearSeven" abstract="false" name="TaxCutsAndJobsActTransitionTaxForAccumulatedForeignEarningsPercentageOfLiabilityPayableYearSeven" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="mchp_TaxCutsAndJobsActTransitionTaxForAccumulatedForeignEarningsPercentageOfLiabilityPayableYearEight" abstract="false" name="TaxCutsAndJobsActTransitionTaxForAccumulatedForeignEarningsPercentageOfLiabilityPayableYearEight" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="mchp_DeferredTaxAssetsLeaseLiabilities" abstract="false" name="DeferredTaxAssetsLeaseLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mchp_DefinedBenefitPlanExpectedFutureBenefitPayments" abstract="false" name="DefinedBenefitPlanExpectedFutureBenefitPayments" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mchp_ShareBasedCompensationExpensePreviouslyCapitalized" abstract="false" name="ShareBasedCompensationExpensePreviouslyCapitalized" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mchp_EquityIncentivePlan2004Member" abstract="true" name="EquityIncentivePlan2004Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_MarketBasedPerformanceSharesMember" abstract="true" name="MarketBasedPerformanceSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_ShareBasedCompensationArrangementByShareBasedPaymentAwardMeasurementPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardMeasurementPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="mchp_EmployeeStockPurchasePlan2001andInternationalEmployeeStockPurchasePlan1994Member" abstract="true" name="EmployeeStockPurchasePlan2001andInternationalEmployeeStockPurchasePlan1994Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mchp_CommonStockMarketValuePerShare" abstract="false" name="CommonStockMarketValuePerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="mchp_JEricBjornholtMember" abstract="true" name="JEricBjornholtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
