diff --git a/library/dc-dc.dcm b/library/dc-dc.dcm
index 630a4a3d..f80022a4 100644
--- a/library/dc-dc.dcm
+++ b/library/dc-dc.dcm
@@ -930,8 +930,14 @@ K Miniature Step-Up Boost Voltage Regulator
 F http://www.ti.com/lit/ds/symlink/lm2733.pdf
 $ENDCMP
 #
-$CMP LM2734
-D Thin SOT 1-A Load Step-Down DC-DC Regulator
+$CMP LM2734X
+D 1A Step-Down DC-DC Regulator, Adjustable Output Voltage, 1.6MHz, TSOT-23-5
+K Miniature Step-Down Buck Voltage Regulator
+F http://www.ti.com/lit/ds/symlink/lm2734.pdf
+$ENDCMP
+#
+$CMP LM2734Y
+D 1A Step-Down DC-DC Regulator, Adjustable Output Voltage, 550kHz, TSOT-23-5
 K Miniature Step-Down Buck Voltage Regulator
 F http://www.ti.com/lit/ds/symlink/lm2734.pdf
 $ENDCMP
diff --git a/library/dc-dc.lib b/library/dc-dc.lib
index d528ecef..822de8f9 100644
--- a/library/dc-dc.lib
+++ b/library/dc-dc.lib
@@ -830,15 +830,16 @@ X VSW 8 500 -200 100 L 50 50 1 1 O
 ENDDRAW
 ENDDEF
 #
-# LM2734
+# LM2734Y
 #
-DEF LM2734 U 0 40 Y Y 1 F N
-F0 "U" -300 350 50 H V L CNN
-F1 "LM2734" -300 250 50 H V L CNN
-F2 "TO_SOT_Packages_SMD:SOT-23-6" 25 -250 50 H I L CIN
+DEF LM2734Y U 0 20 Y Y 1 F N
+F0 "U" -300 250 50 H V L CNN
+F1 "LM2734Y" 0 250 50 H V L CNN
+F2 "TO_SOT_Packages_SMD:TSOT-23-6_MK06A" 25 -250 50 H I L CIN
 F3 "" -100 100 50 H I C CNN
+ALIAS LM2734X
 $FPLIST
- SOT-23*
+ TSOT?23*
 $ENDFPLIST
 DRAW
 S -300 200 300 -200 0 1 10 f