diff --git a/library/dc-dc.dcm b/library/dc-dc.dcm
index 415b56ee..437c8696 100644
--- a/library/dc-dc.dcm
+++ b/library/dc-dc.dcm
@@ -1416,8 +1416,28 @@ K Boost Buck Buck-Boost SEPIC Flyback
 F http://cds.linear.com/docs/en/datasheet/37551fd.pdf
 $ENDCMP
 #
+$CMP LT3757AEDD
+D Boost, flyback, SEPIC and inverting regulator, improved load transient performance, DFN-10
+K Boost flyback SEPIC inverting DC/DC regulator
+F http://cds.linear.com/docs/en/datasheet/3757Afe.pdf
+$ENDCMP
+#
+$CMP LT3757AEMSE
+D Boost, flyback, SEPIC and inverting regulator, improved load transient performance, MSOP-10
+K Boost flyback SEPIC inverting DC/DC regulator
+F http://cds.linear.com/docs/en/datasheet/3757Afe.pdf
+$ENDCMP
+#
+$CMP LT3757EDD
+D Boost, flyback, SEPIC and inverting regulator. DFN-10
+K Boost flyback SEPIC inverting DC/DC regulator
+F http://cds.linear.com/docs/en/datasheet/3757Afe.pdf
+$ENDCMP
+#
 $CMP LT3757EMSE
-D Boost, flyback, SEPIC and inverting regulator (MSOP package)
+D Boost, flyback, SEPIC and inverting regulator. MSOP-10
+K Boost flyback SEPIC inverting DC/DC regulator
+F http://cds.linear.com/docs/en/datasheet/3757Afe.pdf
 $ENDCMP
 #
 $CMP LTC1044
diff --git a/library/dc-dc.lib b/library/dc-dc.lib
index 59915e39..cc3bfbb5 100644
--- a/library/dc-dc.lib
+++ b/library/dc-dc.lib
@@ -1668,26 +1668,57 @@ X GND 17 0 -800 100 U 50 50 1 1 W
 ENDDRAW
 ENDDEF
 #
+# LT3757EDD
+#
+DEF LT3757EDD U 0 20 Y Y 1 F N
+F0 "U" -250 450 50 H V C CNN
+F1 "LT3757EDD" 50 450 50 H V L CNN
+F2 "Housings_DFN_QFN:DFN-10-1EP_3x3mm_Pitch0.5mm" 50 -550 50 H I L CNN
+F3 "" 0 0 50 H I C CNN
+ALIAS LT3757AEDD
+$FPLIST
+ DFN*EP*3x3mm*Pitch0.5mm*
+$ENDFPLIST
+DRAW
+S -300 400 400 -500 0 1 10 f
+X VC 1 -400 -400 100 R 50 50 1 1 I
+X FBX 2 500 -200 100 L 50 50 1 1 I
+X SS 3 -400 -200 100 R 50 50 1 1 I
+X RT 4 -400 -100 100 R 50 50 1 1 I
+X SYNC 5 -400 0 100 R 50 50 1 1 I
+X SENSE 6 500 0 100 L 50 50 1 1 I
+X GATE 7 500 200 100 L 50 50 1 1 O
+X INTVCC 8 500 -400 100 L 50 50 1 1 O
+X ~SHDN~/UVLO 9 -400 100 100 R 50 50 1 1 I
+X VIN 10 0 500 100 D 50 50 1 1 I
+X GND 11 0 -600 100 U 50 50 1 1 W
+ENDDRAW
+ENDDEF
+#
 # LT3757EMSE
 #
-DEF LT3757EMSE U 0 30 Y Y 1 F N
-F0 "U" 150 500 50 H V C CNN
-F1 "LT3757EMSE" 400 -500 50 H V C CNN
-F2 "" 0 0 50 H I C CNN
+DEF LT3757EMSE U 0 20 Y Y 1 F N
+F0 "U" -250 450 50 H V C CNN
+F1 "LT3757EMSE" 50 450 50 H V L CNN
+F2 "Housings_SSOP:MSOP-10-1EP_3x3mm_Pitch0.5mm" 50 -550 50 H I L CNN
 F3 "" 0 0 50 H I C CNN
+ALIAS LT3757AEMSE
+$FPLIST
+ MSOP*EP*3x3mm*Pitch0.5mm*
+$ENDFPLIST
 DRAW
-S -400 450 400 -450 0 1 0 N
-X VC 1 -600 -350 200 R 50 50 1 1 I
-X FBX 2 600 -200 200 L 50 50 1 1 I
-X SS 3 -600 -250 200 R 50 50 1 1 I
-X RT 4 -600 -100 200 R 50 50 1 1 I
-X SYNC 5 -600 50 200 R 50 50 1 1 I
-X SENSE 6 600 -50 200 L 50 50 1 1 I
-X GATE 7 600 200 200 L 50 50 1 1 O
-X INTVCC 8 600 -350 200 L 50 50 1 1 O
-X ~SHDN~/UVLO 9 -600 200 200 R 50 50 1 1 I
-X VIN 10 0 650 200 D 50 50 1 1 I
-X GND 11 0 -650 200 U 50 50 1 1 W
+S -300 400 400 -500 0 1 10 f
+X VC 1 -400 -400 100 R 50 50 1 1 I
+X FBX 2 500 -200 100 L 50 50 1 1 I
+X SS 3 -400 -200 100 R 50 50 1 1 I
+X RT 4 -400 -100 100 R 50 50 1 1 I
+X SYNC 5 -400 0 100 R 50 50 1 1 I
+X SENSE 6 500 0 100 L 50 50 1 1 I
+X GATE 7 500 200 100 L 50 50 1 1 O
+X INTVCC 8 500 -400 100 L 50 50 1 1 O
+X ~SHDN~/UVLO 9 -400 100 100 R 50 50 1 1 I
+X VIN 10 0 500 100 D 50 50 1 1 I
+X GND 11 0 -600 100 U 50 50 1 1 W
 ENDDRAW
 ENDDEF
 #