diff --git a/library/regul.dcm b/library/regul.dcm
index e13a2323..f5589630 100644
--- a/library/regul.dcm
+++ b/library/regul.dcm
@@ -971,9 +971,9 @@ K Adjustable Voltage Regulator 1.5A Negative
 F http://www.ti.com/lit/ds/symlink/lm337-n.pdf
 $ENDCMP
 #
-$CMP LM2931
-D LM2931, 100mA Low drop-out regulator, Fixed Output 3.3V, 5V, and adjustable
-K REGULATOR LDO 3.3V 5V ADJ
+$CMP LM2931AZ-3.3/5.0
+D LM2931, 100mA Low drop-out regulator, Fixed Output 3.3V, 5V
+K REGULATOR LDO 3.3V 5V
 F http://www.ti.com/lit/ds/symlink/lm2931-n.pdf
 $ENDCMP
 #
diff --git a/library/regul.lib b/library/regul.lib
index 86a5d9c1..3fffd6d1 100644
--- a/library/regul.lib
+++ b/library/regul.lib
@@ -441,21 +441,22 @@ X IN 11 -400 50 150 R 40 40 1 1 I
 ENDDRAW
 ENDDEF
 #
-# LM2931
+# LM2931AZ-3.3/5.0
 #
-DEF LM2931 U 0 30 Y Y 1 F N
+DEF LM2931AZ-3.3/5.0 U 0 30 Y Y 1 F N
 F0 "U" 0 250 40 H V C CNN
-F1 "LM2931" 0 200 40 H V C CNN
-F2 "TO92" 0 100 35 H V C CIN
+F1 "LM2931AZ-3.3/5.0" 0 200 40 H V C CNN
+F2 "TO92-123" 0 100 35 H V C CIN
 F3 "" 0 0 60 H V C CNN
+ALIAS LM2931Z-3.3/5.0
 $FPLIST
- TO92
+ TO92-123
 $ENDFPLIST
 DRAW
 S -250 -150 250 150 0 1 10 f
-X VI 1 -400 50 150 R 40 40 1 1 W
+X VO 1 400 50 150 L 40 40 1 1 w
 X GND 2 0 -250 100 U 40 40 1 1 W
-X VO 3 400 50 150 L 40 40 1 1 w
+X VI 3 -400 50 150 R 40 40 1 1 W
 ENDDRAW
 ENDDEF
 #