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  <xs:element id="algm_OtherAccountsReceivableRelatedPartiesCurrent" abstract="false" name="OtherAccountsReceivableRelatedPartiesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="algm_AccountsReceivableReturnsCreditsIssuedAndPriceProtectionAdjustmentsExpenseIncome" abstract="false" name="AccountsReceivableReturnsCreditsIssuedAndPriceProtectionAdjustmentsExpenseIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="algm_ConversionOfStockWeightedAverageConversionPrice" abstract="false" name="ConversionOfStockWeightedAverageConversionPrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="algm_AccountsReceivableAllowanceForReturnsAndSalesWriteoff" abstract="false" name="AccountsReceivableAllowanceForReturnsAndSalesWriteoff" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="algm_LessAbstract" abstract="true" name="LessAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="algm_RelatedPartyTransactionTerm" abstract="false" name="RelatedPartyTransactionTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="algm_DeferredCompensationCashBasedArrangementsLiabilityClassifiedNoncurrentDecreaseForRestrictedStockUnitConversion" abstract="false" name="DeferredCompensationCashBasedArrangementsLiabilityClassifiedNoncurrentDecreaseForRestrictedStockUnitConversion" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="algm_UnsecuredRevolvingCreditFacilitiesMember" abstract="true" name="UnsecuredRevolvingCreditFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="algm_Company401KPlanMember" abstract="true" name="Company401KPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="algm_DeferredCompensationCashBasedArrangementsLiabilityCurrentDecreaseForPayments" abstract="false" name="DeferredCompensationCashBasedArrangementsLiabilityCurrentDecreaseForPayments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="algm_PensionAndOtherPostRetirementBenefitsPlansAccumulatedOtherComprehensiveIncomeLossDefinedBenefitPlanAfterTaxRollForward" abstract="true" name="PensionAndOtherPostRetirementBenefitsPlansAccumulatedOtherComprehensiveIncomeLossDefinedBenefitPlanAfterTaxRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="algm_DeferredCompensationCashBasedArrangementsLiabilityClassifiedNoncurrentDecreaseForPayments" abstract="false" name="DeferredCompensationCashBasedArrangementsLiabilityClassifiedNoncurrentDecreaseForPayments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="algm_AssetsHeldForSalePolicyPolicyTextBlock" abstract="false" name="AssetsHeldForSalePolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="algm_WaferFoundryProductsMember" abstract="true" name="WaferFoundryProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="algm_ShareBasedPaymentArrangementIfInitialPublicOfferingOrChangeInControlOccursMember" abstract="true" name="ShareBasedPaymentArrangementIfInitialPublicOfferingOrChangeInControlOccursMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="algm_IPOSellingShareholdersMember" abstract="true" name="IPOSellingShareholdersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
