diff --git a/library/dc-dc.dcm b/library/dc-dc.dcm
index 2a88e8aa..6114738b 100644
--- a/library/dc-dc.dcm
+++ b/library/dc-dc.dcm
@@ -298,6 +298,54 @@ K SIMPLE SWITCHER® Step-Down Voltage Regulator Adjustable 500mA
 F www.national.com/ds/LM/LM2574.pdf
 $ENDCMP
 #
+$CMP LM2575-12BT
+D Fixed 12V 52kHz Simple 1A Buck Regulator, TO-220-5
+K Buck regulator Switcher
+F http://ww1.microchip.com/downloads/en/DeviceDoc/lm2575.pdf
+$ENDCMP
+#
+$CMP LM2575-12BU
+D Fixed 12V 52kHz Simple 1A Buck Regulator, TO-263
+K Buck regulator Switcher
+F http://ww1.microchip.com/downloads/en/DeviceDoc/lm2575.pdf
+$ENDCMP
+#
+$CMP LM2575-3.3BT
+D Fixed 3.3V 52kHz Simple 1A Buck Regulator, TO-220-5
+K Buck regulator Switcher
+F http://ww1.microchip.com/downloads/en/DeviceDoc/lm2575.pdf
+$ENDCMP
+#
+$CMP LM2575-3.3BU
+D Fixed 3.3V 52kHz Simple 1A Buck Regulator, TO-263
+K Buck regulator Switcher
+F http://ww1.microchip.com/downloads/en/DeviceDoc/lm2575.pdf
+$ENDCMP
+#
+$CMP LM2575-5.0BT
+D Fixed 5.0V 52kHz Simple 1A Buck Regulator, TO-220-5
+K Buck regulator Switcher
+F http://ww1.microchip.com/downloads/en/DeviceDoc/lm2575.pdf
+$ENDCMP
+#
+$CMP LM2575-5.0BU
+D Fixed 5.0V 52kHz Simple 1A Buck Regulator, TO-263
+K Buck regulator Switcher
+F http://ww1.microchip.com/downloads/en/DeviceDoc/lm2575.pdf
+$ENDCMP
+#
+$CMP LM2575BT-ADJ
+D Adjustable 52kHz Simple 1A Buck Regulator, TO-220-5
+K Buck regulator Switcher
+F http://ww1.microchip.com/downloads/en/DeviceDoc/lm2575.pdf
+$ENDCMP
+#
+$CMP LM2575BU-ADJ
+D Adjustable 52kHz Simple 1A Buck Regulator, TO-263
+K Buck Regulator Switcher
+F http://ww1.microchip.com/downloads/en/DeviceDoc/lm2575.pdf
+$ENDCMP
+#
 $CMP LM2576HVS-12
 D TO-263, 12V 3A Step-Down VR High Voltage Input
 K SIMPLE SWITCHER® Step-Down Voltage Regulator 12V 3A High Voltage
diff --git a/library/dc-dc.lib b/library/dc-dc.lib
index 6ad61333..1fc87199 100644
--- a/library/dc-dc.lib
+++ b/library/dc-dc.lib
@@ -423,7 +423,7 @@ F0 "U" -400 350 50 H V L CNN
 F1 "LM2576S-12" -400 250 50 H V L CNN
 F2 "TO-263-5" 300 -250 50 H V C CIN
 F3 "" 0 0 50 H V C CNN
-ALIAS LM2576S-3.3 LM2576S-5 LM2576S-15 LM2576S-ADJ
+ALIAS LM2576S-3.3 LM2576S-5 LM2576S-15 LM2576S-ADJ LM2575BU-ADJ LM2575-3.3BU LM2575-5.0BU LM2575-12BU
 $FPLIST
  TO-263-5*
 $ENDFPLIST
@@ -444,7 +444,7 @@ F0 "U" -400 350 50 H V L CNN
 F1 "LM2576T-12" -400 250 50 H V L CNN
 F2 "TO-220-5" 300 -250 50 H V C CIN
 F3 "" 0 0 50 H V C CNN
-ALIAS LM2576T-3.3 LM2576T-5 LM2576T-15 LM2576T-ADJ
+ALIAS LM2576T-3.3 LM2576T-5 LM2576T-15 LM2576T-ADJ LM2575BT-ADJ LM2575-3.3BT LM2575-5.0BT LM2575-12BT
 $FPLIST
  TO-220-5*
 $ENDFPLIST