diff --git a/library/regul.dcm b/library/regul.dcm
index 220ad5b0..0ad65666 100644
--- a/library/regul.dcm
+++ b/library/regul.dcm
@@ -971,10 +971,8 @@ K Adjustable Voltage Regulator 1.5A Negative
 F http://www.ti.com/lit/ds/symlink/lm337-n.pdf
 $ENDCMP
 #
-$CMP LM317_SOT223
-D Linear Regulator (adjustable)
-K POWER REGUL
-F regulator/lm117.pdf
+$CMP LM2576
+D LM2576 - Simple Switcher Voltage Regulator
 $ENDCMP
 #
 $CMP LM317AEMP
@@ -1037,6 +1035,12 @@ K Adjustable Voltage Regulator 1.5A Positive
 F http://www.national.com/ds/LM/LM117.pdf
 $ENDCMP
 #
+$CMP LM317_SOT223
+D Linear Regulator (adjustable)
+K POWER REGUL
+F regulator/lm117.pdf
+$ENDCMP
+#
 $CMP LM337H
 D LM337H, Negative 0.5A 35V Adjustable Linear Regulator, TO-39
 K Adjustable Voltage Regulator 0.5A Negative
@@ -1454,18 +1458,6 @@ $CMP LT1108
 D Switching Regulator
 $ENDCMP
 #
-$CMP LT1129_QPACK
-D LowDrop Linear Regulator (QPACK 5 pins)
-K REGUL POWER
-F linear-tec/lt1129.pdf
-$ENDCMP
-#
-$CMP LT1129_SO8
-D LowDrop Linear Regulator (8 pins SOJ)
-K REGUL POWER
-F linear-tec/lt1129.pdf
-$ENDCMP
-#
 $CMP LT1129CQ
 D LT1129CQ, 700 mA Low Dropout Voltage Regulator, Adjustable 3.75V-30V, TO263
 K 700mA LDO Regulator Adjustable Positive
@@ -1604,12 +1596,24 @@ K 700mA LDO Regulator 3.3V Positive
 F http://cds.linear.com/docs/en/datasheet/112935ff.pdf
 $ENDCMP
 #
-$CMP LT1175_QP
+$CMP LT1129_QPACK
+D LowDrop Linear Regulator (QPACK 5 pins)
+K REGUL POWER
+F linear-tec/lt1129.pdf
+$ENDCMP
+#
+$CMP LT1129_SO8
+D LowDrop Linear Regulator (8 pins SOJ)
+K REGUL POWER
+F linear-tec/lt1129.pdf
+$ENDCMP
+#
+$CMP LT1175CN8
 D REGULATOR (Negative voltage)
 F linear-tec/lt1175.pdf
 $ENDCMP
 #
-$CMP LT1175CN8
+$CMP LT1175_QP
 D REGULATOR (Negative voltage)
 F linear-tec/lt1175.pdf
 $ENDCMP
@@ -1656,12 +1660,6 @@ $CMP LT3757EMSE
 D Boost, flyback, SEPIC and inverting regulator (MSOP package)
 $ENDCMP
 #
-$CMP LT_1129_QP
-D LowDrop Linear Regulator (QPACK 5 pins)
-K REGUL POWER
-F linear-tec/lt1129.pdf
-$ENDCMP
-#
 $CMP LTC1307
 D Switching Regulator (Single cell micropower)
 K POWER
@@ -1695,6 +1693,12 @@ D 400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect
 F linear-tec\ltc3525.pdf
 $ENDCMP
 #
+$CMP LT_1129_QP
+D LowDrop Linear Regulator (QPACK 5 pins)
+K REGUL POWER
+F linear-tec/lt1129.pdf
+$ENDCMP
+#
 $CMP MAX1647
 D Battery Charger
 F maxim\MAX1647-MAX1648.pdf
diff --git a/library/regul.lib b/library/regul.lib
index 68a1454d..49b0f64f 100644
--- a/library/regul.lib
+++ b/library/regul.lib
@@ -441,18 +441,21 @@ X IN 11 -400 50 150 R 40 40 1 1 I
 ENDDRAW
 ENDDEF
 #
-# LM317_SOT223
+# LM2576
 #
-DEF LM317_SOT223 U 0 40 Y Y 1 F N
-F0 "U" 0 300 60 H V C CNN
-F1 "LM317_SOT223" 50 -250 60 H V L CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
+DEF LM2576 U 0 40 Y Y 1 F N
+F0 "U" 0 250 60 H V C CNN
+F1 "LM2576" 0 -250 60 H V C CNN
+F2 "" -100 -150 60 H V C CNN
+F3 "" -100 -150 60 H V C CNN
+ALIAS LM2576HVS LM2576S LM2576HVSX LM2576SX LM2576HVT LM2576T
 DRAW
-S -250 250 250 -200 0 1 0 N
-X ADJ 1 0 -350 150 U 60 40 1 1 I
-X OUT 2 400 150 150 L 60 40 1 1 w
-X IN 3 -400 150 150 R 60 40 1 1 I
+S -400 200 400 -200 0 1 12 N
+X VIN 1 -700 100 300 R 60 60 1 1 W
+X OUTPUT 2 700 0 300 L 60 60 1 1 w
+X GND 3 700 -100 300 L 60 60 1 1 W
+X ON 3 -700 -100 300 R 60 60 1 1 I I
+X FEEDBACK 4 700 100 300 L 60 60 1 1 I
 ENDDRAW
 ENDDEF
 #
@@ -569,6 +572,21 @@ X IN 3 -400 50 150 R 40 40 1 1 I
 ENDDRAW
 ENDDEF
 #
+# LM317_SOT223
+#
+DEF LM317_SOT223 U 0 40 Y Y 1 F N
+F0 "U" 0 300 60 H V C CNN
+F1 "LM317_SOT223" 50 -250 60 H V L CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -250 250 250 -200 0 1 0 N
+X ADJ 1 0 -350 150 U 60 40 1 1 I
+X OUT 2 400 150 150 L 60 40 1 1 w
+X IN 3 -400 150 150 R 60 40 1 1 I
+ENDDRAW
+ENDDEF
+#
 # LM337H
 #
 DEF LM337H U 0 40 Y Y 1 F N
@@ -945,44 +963,6 @@ X SENSE/ADJ 5 800 100 300 L 60 40 1 1 I
 ENDDRAW
 ENDDEF
 #
-# LT1129_QPACK
-#
-DEF LT1129_QPACK U 0 30 Y Y 1 F N
-F0 "U" 250 450 60 H V C CNN
-F1 "LT1129_QPACK" 500 -495 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-ALIAS LT_1129_QP
-DRAW
-S -500 -400 500 400 0 1 0 N
-X OUT 1 800 300 300 L 60 60 1 1 w
-X SENSE 2 800 100 300 L 60 60 1 1 I
-X GND 3 0 -700 300 U 60 60 1 1 W
-X SHDN 4 -800 100 300 R 60 60 1 1 I I
-X IN 5 -800 300 300 R 60 60 1 1 I
-ENDDRAW
-ENDDEF
-#
-# LT1129_SO8
-#
-DEF LT1129_SO8 U 0 30 Y Y 1 F N
-F0 "U" 0 450 60 H V C CNN
-F1 "LT1129_SO8" 0 -448 60 H V C CNN
-F2 "" 0 0 60 H V C CNN
-F3 "" 0 0 60 H V C CNN
-DRAW
-S -500 -400 500 400 0 1 0 N
-X OUT 1 800 300 300 L 60 60 1 1 w
-X SENSE 2 800 100 300 L 60 60 1 1 I
-X GND 3 800 -100 300 L 60 60 1 1 I
-X NC 4 -800 -300 300 R 60 60 1 1 P
-X SHDN 5 -800 100 300 R 60 60 1 1 I I
-X GND 6 800 -200 300 L 60 60 1 1 I
-X GND 7 800 -300 300 L 60 60 1 1 I
-X IN 8 -800 300 300 R 60 60 1 1 I
-ENDDRAW
-ENDDEF
-#
 # LT1129CQ
 #
 DEF LT1129CQ U 0 40 Y Y 1 F N
@@ -1067,20 +1047,41 @@ X VIN 5 -450 50 150 R 40 40 1 1 W
 ENDDRAW
 ENDDEF
 #
-# LT1175_QP
+# LT1129_QPACK
 #
-DEF LT1175_QP U 0 30 Y Y 1 F N
+DEF LT1129_QPACK U 0 30 Y Y 1 F N
+F0 "U" 250 450 60 H V C CNN
+F1 "LT1129_QPACK" 500 -495 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+ALIAS LT_1129_QP
+DRAW
+S -500 -400 500 400 0 1 0 N
+X OUT 1 800 300 300 L 60 60 1 1 w
+X SENSE 2 800 100 300 L 60 60 1 1 I
+X GND 3 0 -700 300 U 60 60 1 1 W
+X SHDN 4 -800 100 300 R 60 60 1 1 I I
+X IN 5 -800 300 300 R 60 60 1 1 I
+ENDDRAW
+ENDDEF
+#
+# LT1129_SO8
+#
+DEF LT1129_SO8 U 0 30 Y Y 1 F N
 F0 "U" 0 450 60 H V C CNN
-F1 "LT1175_QP" 400 -448 60 H V C CNN
+F1 "LT1129_SO8" 0 -448 60 H V C CNN
 F2 "" 0 0 60 H V C CNN
 F3 "" 0 0 60 H V C CNN
 DRAW
 S -500 -400 500 400 0 1 0 N
 X OUT 1 800 300 300 L 60 60 1 1 w
 X SENSE 2 800 100 300 L 60 60 1 1 I
-X IN 3 -800 300 300 R 60 60 1 1 I
-X GND 4 0 -700 300 U 60 60 1 1 W
+X GND 3 800 -100 300 L 60 60 1 1 I
+X NC 4 -800 -300 300 R 60 60 1 1 P
 X SHDN 5 -800 100 300 R 60 60 1 1 I I
+X GND 6 800 -200 300 L 60 60 1 1 I
+X GND 7 800 -300 300 L 60 60 1 1 I
+X IN 8 -800 300 300 R 60 60 1 1 I
 ENDDRAW
 ENDDEF
 #
@@ -1104,6 +1105,23 @@ X IN 8 -800 200 300 R 50 50 1 1 I
 ENDDRAW
 ENDDEF
 #
+# LT1175_QP
+#
+DEF LT1175_QP U 0 30 Y Y 1 F N
+F0 "U" 0 450 60 H V C CNN
+F1 "LT1175_QP" 400 -448 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -500 -400 500 400 0 1 0 N
+X OUT 1 800 300 300 L 60 60 1 1 w
+X SENSE 2 800 100 300 L 60 60 1 1 I
+X IN 3 -800 300 300 R 60 60 1 1 I
+X GND 4 0 -700 300 U 60 60 1 1 W
+X SHDN 5 -800 100 300 R 60 60 1 1 I I
+ENDDRAW
+ENDDEF
+#
 # LT1372
 #
 DEF LT1372 U 0 30 Y Y 1 F N