diff --git a/library/dc-dc.dcm b/library/dc-dc.dcm
index d4d25ec0..f25b90cc 100644
--- a/library/dc-dc.dcm
+++ b/library/dc-dc.dcm
@@ -372,62 +372,122 @@ K step down buck regulator
 F http://www.st.com/resource/en/datasheet/l5973d.pdf
 $ENDCMP
 #
-$CMP LM2574HVH-12
-D LM2574N, 12V, 0.5A Step-Down VR, High Votage Input
+$CMP LM2574HVM-12
+D 12V, 0.5A Step-Down VR, High Voltage Input, SO-8
 K SIMPLE SWITCHER® Step-Down Voltage Regulator 12V 500mA HV
 F http://www.ti.com/lit/ds/symlink/lm2574.pdf
 $ENDCMP
 #
-$CMP LM2574HVH-15
-D LM2574N, 15V, 0.5A Step-Down VR, High Votage Input
+$CMP LM2574HVM-15
+D 15V, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, High Voltage Input, SO-8
 K SIMPLE SWITCHER® Step-Down Voltage Regulator 15V 500mA HV
 F www.national.com/ds/LM/LM2574.pdf
 $ENDCMP
 #
-$CMP LM2574HVH-3.3
-D LM2574N, 3.3V, 0.5A Step-Down VR, High Votage Input
+$CMP LM2574HVM-3.3
+D 3.3V, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, High Voltage Input, SO-8
 K SIMPLE SWITCHER® Step-Down Voltage Regulator 3.3V 500mA HV
 F www.national.com/ds/LM/LM2574.pdf
 $ENDCMP
 #
-$CMP LM2574HVH-5
-D LM2574N, 5V, 0.5A Step-Down VR, High Votage Input
+$CMP LM2574HVM-5
+D 5V, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, High Voltage Input, SO-8
 K SIMPLE SWITCHER® Step-Down Voltage Regulator 5V 500mA HV
 F www.national.com/ds/LM/LM2574.pdf
 $ENDCMP
 #
-$CMP LM2574HVH-ADJ
-D LM2574N, Adjustable Output, 0.5A Step-Down VR, High Votage Input
+$CMP LM2574HVM-ADJ
+D Adjustable Output, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, High Voltage Input, SO-8
 K SIMPLE SWITCHER® Step-Down Voltage Regulator Adjustable 500mA HV
 F www.national.com/ds/LM/LM2574.pdf
 $ENDCMP
 #
+$CMP LM2574HVN-12
+D 12V, 0.5A Step-Down VR, High Voltage Input, DIP-8
+K SIMPLE SWITCHER® Step-Down Voltage Regulator 12V 500mA HV
+F http://www.ti.com/lit/ds/symlink/lm2574.pdf
+$ENDCMP
+#
+$CMP LM2574HVN-15
+D 15V, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, High Voltage Input, DIP-8
+K SIMPLE SWITCHER® Step-Down Voltage Regulator 15V 500mA HV
+F www.national.com/ds/LM/LM2574.pdf
+$ENDCMP
+#
+$CMP LM2574HVN-3.3
+D 3.3V, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, High Voltage Input, DIP-8
+K SIMPLE SWITCHER® Step-Down Voltage Regulator 3.3V 500mA HV
+F www.national.com/ds/LM/LM2574.pdf
+$ENDCMP
+#
+$CMP LM2574HVN-5
+D 5V, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, High Voltage Input, DIP-8
+K SIMPLE SWITCHER® Step-Down Voltage Regulator 5V 500mA HV
+F www.national.com/ds/LM/LM2574.pdf
+$ENDCMP
+#
+$CMP LM2574HVN-ADJ
+D Adjustable Output, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, High Voltage Input, DIP-8
+K SIMPLE SWITCHER® Step-Down Voltage Regulator Adjustable 500mA HV
+F www.national.com/ds/LM/LM2574.pdf
+$ENDCMP
+#
+$CMP LM2574M-12
+D 12V, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, SO-8
+K SIMPLE SWITCHER® Step-Down Voltage Regulator 12V 500mA
+F www.national.com/ds/LM/LM2574.pdf
+$ENDCMP
+#
+$CMP LM2574M-15
+D 15V, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, SO-8
+K SIMPLE SWITCHER® Step-Down Voltage Regulator 15V 500mA
+F www.national.com/ds/LM/LM2574.pdf
+$ENDCMP
+#
+$CMP LM2574M-3.3
+D 3.3V, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, SO-8
+K SIMPLE SWITCHER® Step-Down Voltage Regulator 3.3V 500mA
+F www.national.com/ds/LM/LM2574.pdf
+$ENDCMP
+#
+$CMP LM2574M-5
+D 5V, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, SO-8
+K SIMPLE SWITCHER® Step-Down Voltage Regulator 5V 500mA
+F www.national.com/ds/LM/LM2574.pdf
+$ENDCMP
+#
+$CMP LM2574M-ADJ
+D Adjustable Output, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, SO-8
+K SIMPLE SWITCHER® Step-Down Voltage Regulator Adjustable 500mA
+F www.national.com/ds/LM/LM2574.pdf
+$ENDCMP
+#
 $CMP LM2574N-12
-D 12V, 0.5A Step-Down VR
+D 12V, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, DIP-8
 K SIMPLE SWITCHER® Step-Down Voltage Regulator 12V 500mA
 F www.national.com/ds/LM/LM2574.pdf
 $ENDCMP
 #
 $CMP LM2574N-15
-D 15V, 0.5A Step-Down VR
+D 15V, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, DIP-8
 K SIMPLE SWITCHER® Step-Down Voltage Regulator 15V 500mA
 F www.national.com/ds/LM/LM2574.pdf
 $ENDCMP
 #
 $CMP LM2574N-3.3
-D 3.3V, 0.5A Step-Down VR
+D 3.3V, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, DIP-8
 K SIMPLE SWITCHER® Step-Down Voltage Regulator 3.3V 500mA
 F www.national.com/ds/LM/LM2574.pdf
 $ENDCMP
 #
 $CMP LM2574N-5
-D 5V, 0.5A Step-Down VR
+D 5V, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, DIP-8
 K SIMPLE SWITCHER® Step-Down Voltage Regulator 5V 500mA
 F www.national.com/ds/LM/LM2574.pdf
 $ENDCMP
 #
 $CMP LM2574N-ADJ
-D Adjustable Output, 0.5A Step-Down VR
+D Adjustable Output, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, DIP-8
 K SIMPLE SWITCHER® Step-Down Voltage Regulator Adjustable 500mA
 F www.national.com/ds/LM/LM2574.pdf
 $ENDCMP
diff --git a/library/dc-dc.lib b/library/dc-dc.lib
index ade11fb9..0bc0f17f 100644
--- a/library/dc-dc.lib
+++ b/library/dc-dc.lib
@@ -604,36 +604,36 @@ X EP 9 100 -300 100 U 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
-# LM2574HVH-12
+# LM2574HVM-12
 #
-DEF LM2574HVH-12 U 0 40 Y Y 1 F N
-F0 "U" -400 350 50 H V L CNN
-F1 "LM2574HVH-12" -400 250 50 H V L CNN
-F2 "Housings_DIP:DIP-8_W7.62mm" -400 450 50 H I L CIN
+DEF LM2574HVM-12 U 0 10 Y Y 1 F N
+F0 "U" -400 250 50 H V L CNN
+F1 "LM2574HVM-12" -200 250 50 H V L CNN
+F2 "Housings_SOIC:SOIC-14W_7.5x9.0mm_Pitch1.27mm" -400 350 50 H I L CIN
 F3 "" 0 0 50 H I C CNN
-ALIAS LM2574HVH-3.3 LM2574HVH-5 LM2574HVH-15 LM2574HVH-ADJ
+ALIAS LM2574HVM-3.3 LM2574HVM-5 LM2574HVM-15 LM2574HVM-ADJ LM2574M-12 LM2574M-3.3 LM2574M-5 LM2574M-15 LM2574M-ADJ
 $FPLIST
- DIP*W7.62mm*
+ SOIC?14W*7.5x9.0mm*Pitch1.27mm*
 $ENDFPLIST
 DRAW
 S -400 200 400 -200 0 1 10 f
-X FB 1 500 100 100 L 50 50 1 1 I
-X SGND 2 0 -300 100 U 50 50 1 1 W
-X ON/~OFF 3 -500 -100 100 R 50 50 1 1 I
-X PGND 4 100 -300 100 U 50 50 1 1 W
-X VIN 5 -500 100 100 R 50 50 1 1 W
-X OUT 7 500 -100 100 L 50 50 1 1 O
+X FB 3 500 100 100 L 50 50 1 1 I
+X SGND 4 0 -300 100 U 50 50 1 1 W
+X ON/~OFF 5 -500 -100 100 R 50 50 1 1 I
+X PGND 6 100 -300 100 U 50 50 1 1 W
+X VIN 10 -500 100 100 R 50 50 1 1 W
+X OUT 12 500 -100 100 L 50 50 1 1 O
 ENDDRAW
 ENDDEF
 #
-# LM2574N-12
+# LM2574HVN-12
 #
-DEF LM2574N-12 U 0 40 Y Y 1 F N
-F0 "U" -400 350 50 H V L CNN
-F1 "LM2574N-12" -400 250 50 H V L CNN
-F2 "Housings_DIP:DIP-8_W7.62mm" 350 -250 50 H I C CIN
+DEF LM2574HVN-12 U 0 10 Y Y 1 F N
+F0 "U" -400 250 50 H V L CNN
+F1 "LM2574HVN-12" 0 250 50 H V L CNN
+F2 "Housings_DIP:DIP-8_W7.62mm" -400 350 50 H I L CIN
 F3 "" 0 0 50 H I C CNN
-ALIAS LM2574N-3.3 LM2574N-5 LM2574N-15 LM2574N-ADJ
+ALIAS LM2574HVN-3.3 LM2574HVN-5 LM2574HVN-15 LM2574HVN-ADJ LM2574N-12 LM2574N-3.3 LM2574N-5 LM2574N-15 LM2574N-ADJ
 $FPLIST
  DIP*W7.62mm*
 $ENDFPLIST
@@ -644,7 +644,9 @@ X SGND 2 0 -300 100 U 50 50 1 1 W
 X ON/~OFF 3 -500 -100 100 R 50 50 1 1 I
 X PGND 4 100 -300 100 U 50 50 1 1 W
 X VIN 5 -500 100 100 R 50 50 1 1 W
+X NC 6 -400 0 100 R 50 50 1 1 N N
 X OUT 7 500 -100 100 L 50 50 1 1 O
+X NC 8 400 0 100 L 50 50 1 1 N N
 ENDDRAW
 ENDDEF
 #