diff --git a/library/ac-dc.dcm b/library/ac-dc.dcm
index 83679a1a..fd74c731 100644
--- a/library/ac-dc.dcm
+++ b/library/ac-dc.dcm
@@ -265,11 +265,17 @@ F http://www.onsemi.com/pub_link/Collateral/NCP1200-D.PDF
 $ENDCMP
 #
 $CMP SG3525
-D Regulating Pulse Width Modulators, PDIP-16/SOIC-16
+D Regulating Pulse Width Modulators, NOR Logic, PDIP-16/SOIC-16
 K SMPS PWM Controller
 F www.st.com/resource/en/datasheet/sg3525.pdf
 $ENDCMP
 #
+$CMP SG3527
+D Regulating Pulse Width Modulators, OR Logic, PDIP-16/SOIC-16
+K SMPS PWM Controller
+F https://www.microsemi.com/document-portal/doc_view/11120-sg1525a-sg1527a-datasheet
+$ENDCMP
+#
 $CMP TL494
 D Pulse-Width-Modulation Control Circuits, PDIP-16/SOIC-16/TSSOP-16
 K SMPS PWM Controller