power: LM2676, VCCIO reg FB divider changed, footprints, descriptions

- LM2676 used as main regulator
- VCCIO reg feedback voltage divider changed
- added capacitors voltage
- footprint assignment

diff --git a/lib/README.txt b/lib/README.txt
index 94e1130814c07ee0909f66f986fc6156da826254..02273a5db3447296c2b89823d9af924d1556134b 100644 (file)
--- a/lib/README.txt
+++ b/lib/README.txt
@@ -1,3 +1,7 @@
 MicroZed JX Headers were taken from https://github.com/mng2/kicad-parts
 (public domain) and modified.
 
+D-SUB schematic symbols and footprints taken from KiCad library.
+
+TO-263-7-TEXAS footprint comes from https://github.com/cpavlina/kicad-pcblib/tree/master/manuf.pretty
+under Creative Commons license.

diff --git a/lib/footprints.pretty/TO-263-7-TEXAS.kicad_mod b/lib/footprints.pretty/TO-263-7-TEXAS.kicad_mod
new file mode 100644 (file)
index 0000000..4fd3b23
--- /dev/null
+++ b/lib/footprints.pretty/TO-263-7-TEXAS.kicad_mod
@@ -0,0 +1,44 @@
+(module TO-263-7-TEXAS (layer F.Cu) (tedit 5529E1F2)
+  (attr smd)
+  (fp_text reference REF** (at 0 0) (layer F.SilkS)
+    (effects (font (size 0.8 0.8) (thickness 0.15)))
+  )
+  (fp_text value TO-263-7-TEXAS (at 0 0) (layer F.Fab)
+    (effects (font (size 0.8 0.8) (thickness 0.15)))
+  )
+  (fp_line (start 4.25 -7.45) (end 4.25 -8.5) (layer F.CrtYd) (width 0.2))
+  (fp_line (start 4.25 -8.5) (end -4.25 -8.5) (layer F.CrtYd) (width 0.2))
+  (fp_line (start -4.25 -8.5) (end -4.25 -7.45) (layer F.CrtYd) (width 0.2))
+  (fp_line (start 4.25 -7.45) (end 5.33 -7.45) (layer F.CrtYd) (width 0.2))
+  (fp_line (start -5.33 -7.45) (end -4.25 -7.45) (layer F.CrtYd) (width 0.2))
+  (fp_line (start 4.25 -7.2) (end 5.08 -7.2) (layer F.SilkS) (width 0.2))
+  (fp_line (start -5 7.15) (end -5 5.15) (layer F.SilkS) (width 0.2))
+  (fp_line (start -4.5 2.65) (end -4.5 7.68) (layer F.SilkS) (width 0.2))
+  (fp_line (start -4.5 7.68) (end 4.5 7.68) (layer F.SilkS) (width 0.2))
+  (fp_line (start 4.5 7.68) (end 4.5 2.65) (layer F.SilkS) (width 0.2))
+  (fp_line (start 5.08 -7.2) (end 5.08 2.65) (layer F.SilkS) (width 0.2))
+  (fp_line (start 5.08 2.65) (end -5.08 2.65) (layer F.SilkS) (width 0.2))
+  (fp_line (start -5.08 2.65) (end -5.08 -7.2) (layer F.SilkS) (width 0.2))
+  (fp_line (start -5.08 -7.2) (end -4.25 -7.2) (layer F.SilkS) (width 0.2))
+  (fp_line (start 5.33 -7.45) (end 5.33 7.68) (layer F.CrtYd) (width 0.2))
+  (fp_line (start 5.33 7.68) (end -5.33 7.68) (layer F.CrtYd) (width 0.2))
+  (fp_line (start -5.33 7.68) (end -5.33 -7.45) (layer F.CrtYd) (width 0.2))
+  (fp_line (start -5.08 -7.2) (end 5.08 -7.2) (layer F.Fab) (width 0.2))
+  (fp_line (start 5.08 -7.2) (end 5.08 2.65) (layer F.Fab) (width 0.2))
+  (fp_line (start 5.08 2.65) (end -5.08 2.65) (layer F.Fab) (width 0.2))
+  (fp_line (start -5.08 2.65) (end -5.08 -7.2) (layer F.Fab) (width 0.2))
+  (pad 8 smd rect (at 0 -3) (size 5.59 6.35) (layers F.Cu F.Paste F.Mask))
+  (pad 1 smd rect (at -3.81 6.225) (size 0.91 2.41) (layers F.Cu F.Paste F.Mask))
+  (pad 2 smd rect (at -2.54 6.225) (size 0.91 2.41) (layers F.Cu F.Paste F.Mask))
+  (pad 3 smd rect (at -1.27 6.225) (size 0.91 2.41) (layers F.Cu F.Paste F.Mask))
+  (pad 4 smd rect (at 0 6.225) (size 0.91 2.41) (layers F.Cu F.Paste F.Mask))
+  (pad 5 smd rect (at 1.27 6.225) (size 0.91 2.41) (layers F.Cu F.Paste F.Mask))
+  (pad 6 smd rect (at 2.54 6.225) (size 0.91 2.41) (layers F.Cu F.Paste F.Mask))
+  (pad 7 smd rect (at 3.81 6.225) (size 0.91 2.41) (layers F.Cu F.Paste F.Mask))
+  (pad 8 smd rect (at 0 -7) (size 8 2.41) (layers F.Cu F.Paste F.Mask))
+  (model smd_trans/d2-pak-7.wrl
+    (at (xyz 0 0 0))
+    (scale (xyz 1 1 1))
+    (rotate (xyz 0 0 0))
+  )
+)

diff --git a/lib/mcp.dcm b/lib/mcp.dcm
index 9ff5e968301bdc035153824b2263c09e0d86fd0f..0362709afa7d77e0be618999207d8670c7037433 100644 (file)
--- a/lib/mcp.dcm
+++ b/lib/mcp.dcm
@@ -1,5 +1,11 @@
 EESchema-DOCLIB  Version 2.0
 #
+$CMP LM2676S-5.0
+D 5V, 3A Step-Down VR
+K SIMPLE SWITCHER® Step-Down Voltage Regulator 5V 3A
+F http://www.ti.com/lit/ds/symlink/lm2676.pdf
+$ENDCMP
+#
 $CMP MCP111T
 D Supervisor, Active-Low, Open-Drain Reset
 K Supervisor, Active-Low, Open-Drain Reset

diff --git a/lib/mcp.lib b/lib/mcp.lib
index ed0a4000b865ef0ddf78ce3321b34c43ea6fc530..09fa5a674a51f4f7f5afd91521a2342e61ea7528 100644 (file)
--- a/lib/mcp.lib
+++ b/lib/mcp.lib
@@ -1,6 +1,29 @@
 EESchema-LIBRARY Version 2.3
 #encoding utf-8
 #
+# LM2676S-5.0
+#
+DEF LM2676S-5.0 U 0 40 Y Y 1 F N
+F0 "U" -400 450 50 H V L CNN
+F1 "LM2676S-5.0" -400 350 50 H V L CNN
+F2 "SOIC-8" 300 -350 50 H V C CIN
+F3 "" 0 0 50 H V C CNN
+$FPLIST
+ TO-220*
+ DDPAK*
+ TO-263*
+$ENDFPLIST
+DRAW
+S -400 300 400 -300 0 1 10 f
+X VSW 1 500 -200 100 L 50 50 1 1 O
+X VIN 2 -500 200 100 R 50 50 1 1 W
+X CB 3 500 0 100 L 50 50 1 1 I
+X GND 4 0 -400 100 U 50 50 1 1 W
+X FB 6 500 200 100 L 50 50 1 1 I
+X ON/~OFF 7 -500 0 100 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
 # MCP111T
 #
 DEF MCP111T U 0 40 Y Y 1 F N
@@ -28,7 +51,7 @@ F1 "MCP120T-315I/TT" -400 150 50 H V L CNN
 F2 "SOT" 250 -300 50 H V C CIN
 F3 "" 0 -200 50 H V C CNN
 $FPLIST
- SOT-23-5
+ SOT-23
 $ENDFPLIST
 DRAW
 S -300 100 300 -250 0 1 10 f
@@ -46,7 +69,7 @@ F1 "MCP120T-450I/TT" -400 150 50 H V L CNN
 F2 "SOT" 250 -300 50 H V C CIN
 F3 "" 0 -200 50 H V C CNN
 $FPLIST
- SOT-23-5
+ SOT-23
 $ENDFPLIST
 DRAW
 S -300 100 300 -250 0 1 10 f

diff --git a/power.sch b/power.sch
index 9aafc85c9e018d6bfe22040fc168561c8710ff19..d111a7cca05a930395abd97f321c1b85b3b17787 100644 (file)
--- a/power.sch
+++ b/power.sch
@@ -93,17 +93,6 @@ Comment4 ""
 $EndDescr
 NoConn ~ 1250 1100
 $Comp
-L LM2675M-5 U2
-U 1 1 56FE9029
-P 5250 1350
-F 0 "U2" H 4850 1800 50  0000 L CNN
-F 1 "LM2675M-5" H 4850 1700 50  0000 L CNN
-F 2 "SMD_Packages:SOIC-8-N" H 5550 1000 50  0000 C CIN
-F 3 "" H 5250 1350 50  0000 C CNN
-       1    5250 1350
-       1    0    0    -1  
-$EndComp
-$Comp
 L CP C3
 U 1 1 56FE91B5
 P 1750 1200
@@ -134,6 +123,7 @@ F 0 "C8" H 4575 1650 50  0000 L CNN
 F 1 "10n" H 4575 1450 50  0000 L CNN
 F 2 "Capacitors_SMD:C_0805_HandSoldering" H 4588 1400 50  0001 C CNN
 F 3 "" H 4550 1550 50  0000 C CNN
+F 4 "30V" H 4550 1550 60  0001 C CNN "Description"
        1    4550 1550
        1    0    0    -1  
 $EndComp
@@ -142,17 +132,18 @@ L C C7
 U 1 1 56FE9335
 P 4250 1550
 F 0 "C7" H 4275 1650 50  0000 L CNN
-F 1 "100n" H 4275 1450 50  0000 L CNN
+F 1 "470n" H 4275 1450 50  0000 L CNN
 F 2 "Capacitors_SMD:C_0805_HandSoldering" H 4288 1400 50  0001 C CNN
 F 3 "" H 4250 1550 50  0000 C CNN
+F 4 "30V" H 4250 1550 60  0001 C CNN "Description"
        1    4250 1550
        1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR5
+L GND #PWR05
 U 1 1 56FE94CA
 P 1350 1700
-F 0 "#PWR5" H 1350 1450 50  0001 C CNN
+F 0 "#PWR05" H 1350 1450 50  0001 C CNN
 F 1 "GND" H 1350 1550 50  0000 C CNN
 F 2 "" H 1350 1700 50  0000 C CNN
 F 3 "" H 1350 1700 50  0000 C CNN
@@ -167,6 +158,7 @@ F 0 "C9" V 5900 1300 50  0000 L CNN
 F 1 "10n" V 6200 1300 50  0000 L CNN
 F 2 "Capacitors_SMD:C_0805_HandSoldering" H 6088 1200 50  0001 C CNN
 F 3 "" H 6050 1350 50  0000 C CNN
+F 4 ">13V" V 6050 1350 60  0001 C CNN "Description"
        1    6050 1350
        0    1    1    0   
 $EndComp
@@ -175,11 +167,10 @@ L INDUCTOR_SMALL L2
 U 1 1 56FE961C
 P 6700 1350
 F 0 "L2" H 6700 1450 50  0000 C CNN
-F 1 "DE1205-68" H 6700 1300 50  0000 C CNN
+F 1 "DL50-33" H 6700 1300 50  0000 C CNN
 F 2 "" H 6700 1350 50  0001 C CNN
 F 3 "" H 6700 1350 50  0000 C CNN
-F 4 "DE1205-68, VLP8040T-680M" H 6700 1350 60  0001 C CNN "Alternatives"
-F 5 "68uH, 1.5A" H 6700 1350 60  0001 C CNN "Description"
+F 4 "33uH, 3A" H 6700 1350 60  0001 C CNN "Description"
        1    6700 1350
        1    0    0    -1  
 $EndComp
@@ -188,17 +179,18 @@ L CP C13
 U 1 1 56FE97FD
 P 7200 1550
 F 0 "C13" H 7225 1650 50  0000 L CNN
-F 1 "100u" H 7225 1450 50  0000 L CNN
+F 1 "180u" H 7225 1450 50  0000 L CNN
 F 2 "Capacitors_SMD:c_elec_6.3x5.3" H 7238 1400 50  0001 C CNN
 F 3 "" H 7200 1550 50  0000 C CNN
+F 4 "6V" H 7200 1550 60  0001 C CNN "Description"
        1    7200 1550
        1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR27
+L GND #PWR06
 U 1 1 56FE98E3
 P 7200 1800
-F 0 "#PWR27" H 7200 1550 50  0001 C CNN
+F 0 "#PWR06" H 7200 1550 50  0001 C CNN
 F 1 "GND" H 7200 1650 50  0000 C CNN
 F 2 "" H 7200 1800 50  0000 C CNN
 F 3 "" H 7200 1800 50  0000 C CNN
@@ -210,10 +202,10 @@ L CP C6
 U 1 1 56FE9991
 P 3900 1550
 F 0 "C6" H 3925 1650 50  0000 L CNN
-F 1 "220u" H 3925 1450 50  0000 L CNN
+F 1 "15u" H 3925 1450 50  0000 L CNN
 F 2 "Capacitors_SMD:c_elec_10x10.5" H 3938 1400 50  0001 C CNN
 F 3 "" H 3900 1550 50  0000 C CNN
-F 4 "220u 30V Elyt" H 3900 1550 60  0001 C CNN "Description"
+F 4 "15uF 35V Tantal" H 3900 1550 60  0001 C CNN "Description"
        1    3900 1550
        1    0    0    -1  
 $EndComp
@@ -225,6 +217,7 @@ F 0 "C14" H 7525 1650 50  0000 L CNN
 F 1 "100n" H 7525 1450 50  0000 L CNN
 F 2 "Capacitors_SMD:C_0805_HandSoldering" H 7538 1400 50  0001 C CNN
 F 3 "" H 7500 1550 50  0000 C CNN
+F 4 "6V" H 7500 1550 60  0001 C CNN "Description"
        1    7500 1550
        1    0    0    -1  
 $EndComp
@@ -236,14 +229,15 @@ F 0 "C15" H 7775 1650 50  0000 L CNN
 F 1 "10u" H 7775 1450 50  0000 L CNN
 F 2 "Capacitors_SMD:C_0805_HandSoldering" H 7788 1400 50  0001 C CNN
 F 3 "" H 7750 1550 50  0000 C CNN
+F 4 "6V" H 7750 1550 60  0001 C CNN "Description"
        1    7750 1550
        1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR32
+L GND #PWR07
 U 1 1 56FE9F85
 P 7500 1800
-F 0 "#PWR32" H 7500 1550 50  0001 C CNN
+F 0 "#PWR07" H 7500 1550 50  0001 C CNN
 F 1 "GND" H 7500 1650 50  0000 C CNN
 F 2 "" H 7500 1800 50  0000 C CNN
 F 3 "" H 7500 1800 50  0000 C CNN
@@ -251,10 +245,10 @@ F 3 "" H 7500 1800 50  0000 C CNN
        1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR35
+L GND #PWR08
 U 1 1 56FE9FB4
 P 7750 1800
-F 0 "#PWR35" H 7750 1550 50  0001 C CNN
+F 0 "#PWR08" H 7750 1550 50  0001 C CNN
 F 1 "GND" H 7750 1650 50  0000 C CNN
 F 2 "" H 7750 1800 50  0000 C CNN
 F 3 "" H 7750 1800 50  0000 C CNN
@@ -267,16 +261,16 @@ U 1 1 56FEA973
 P 1500 900
 F 0 "D3" H 1500 1000 50  0000 C CNN
 F 1 "D" H 1500 800 50  0000 C CNN
-F 2 "Diodes_SMD:SMB_Handsoldering" H 1500 900 50  0001 C CNN
+F 2 "" H 1500 900 50  0001 C CNN
 F 3 "" H 1500 900 50  0000 C CNN
        1    1500 900 
        -1   0    0    -1  
 $EndComp
 $Comp
-L GND #PWR12
+L GND #PWR09
 U 1 1 56FEAB78
 P 3900 1800
-F 0 "#PWR12" H 3900 1550 50  0001 C CNN
+F 0 "#PWR09" H 3900 1550 50  0001 C CNN
 F 1 "GND" H 3900 1650 50  0000 C CNN
 F 2 "" H 3900 1800 50  0000 C CNN
 F 3 "" H 3900 1800 50  0000 C CNN
@@ -285,13 +279,13 @@ F 3 "" H 3900 1800 50  0000 C CNN
 $EndComp
 Text Label 2350 900  2    60   ~ 0
 VIN_24
-Text Label 3350 1150 0    60   ~ 0
+Text Label 3150 1150 0    60   ~ 0
 VIN_24
 $Comp
-L GND #PWR15
+L GND #PWR010
 U 1 1 56FEAF94
 P 4250 1800
-F 0 "#PWR15" H 4250 1550 50  0001 C CNN
+F 0 "#PWR010" H 4250 1550 50  0001 C CNN
 F 1 "GND" H 4250 1650 50  0000 C CNN
 F 2 "" H 4250 1800 50  0000 C CNN
 F 3 "" H 4250 1800 50  0000 C CNN
@@ -299,10 +293,10 @@ F 3 "" H 4250 1800 50  0000 C CNN
        1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR16
+L GND #PWR011
 U 1 1 56FEAFC3
 P 4550 1800
-F 0 "#PWR16" H 4550 1550 50  0001 C CNN
+F 0 "#PWR011" H 4550 1550 50  0001 C CNN
 F 1 "GND" H 4550 1650 50  0000 C CNN
 F 2 "" H 4550 1800 50  0000 C CNN
 F 3 "" H 4550 1800 50  0000 C CNN
@@ -310,10 +304,10 @@ F 3 "" H 4550 1800 50  0000 C CNN
        1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR19
+L GND #PWR012
 U 1 1 56FEB5B5
 P 5250 1800
-F 0 "#PWR19" H 5250 1550 50  0001 C CNN
+F 0 "#PWR012" H 5250 1550 50  0001 C CNN
 F 1 "GND" H 5250 1650 50  0000 C CNN
 F 2 "" H 5250 1800 50  0000 C CNN
 F 3 "" H 5250 1800 50  0000 C CNN
@@ -321,10 +315,10 @@ F 3 "" H 5250 1800 50  0000 C CNN
        1    0    0    -1  
 $EndComp
 $Comp
-L PWR_FLAG #FLG2
+L PWR_FLAG #FLG013
 U 1 1 56FEB9FB
 P 1900 800
-F 0 "#FLG2" H 1900 895 50  0001 C CNN
+F 0 "#FLG013" H 1900 895 50  0001 C CNN
 F 1 "PWR_FLAG" H 1900 980 50  0000 C CNN
 F 2 "" H 1900 800 50  0000 C CNN
 F 3 "" H 1900 800 50  0000 C CNN
@@ -332,10 +326,10 @@ F 3 "" H 1900 800 50  0000 C CNN
        1    0    0    -1  
 $EndComp
 $Comp
-L +5V #PWR36
+L +5V #PWR014
 U 1 1 56FEBE9B
 P 7950 950
-F 0 "#PWR36" H 7950 800 50  0001 C CNN
+F 0 "#PWR014" H 7950 800 50  0001 C CNN
 F 1 "+5V" H 7950 1090 50  0000 C CNN
 F 2 "" H 7950 950 50  0000 C CNN
 F 3 "" H 7950 950 50  0000 C CNN
@@ -343,10 +337,10 @@ F 3 "" H 7950 950 50  0000 C CNN
        1    0    0    -1  
 $EndComp
 $Comp
-L PWR_FLAG #FLG5
+L PWR_FLAG #FLG015
 U 1 1 56FEC19D
 P 8150 1250
-F 0 "#FLG5" H 8150 1345 50  0001 C CNN
+F 0 "#FLG015" H 8150 1345 50  0001 C CNN
 F 1 "PWR_FLAG" H 8150 1430 50  0000 C CNN
 F 2 "" H 8150 1250 50  0000 C CNN
 F 3 "" H 8150 1250 50  0000 C CNN
@@ -358,18 +352,17 @@ L D_Schottky D4
 U 1 1 56FEC6E1
 P 6400 1600
 F 0 "D4" V 6500 1500 50  0000 C CNN
-F 1 "SS210" V 6350 1450 50  0000 C CNN
-F 2 "Diodes_SMD:SMB_Handsoldering" H 6400 1600 50  0001 C CNN
+F 1 "SK34" V 6350 1450 50  0000 C CNN
+F 2 "" H 6400 1600 50  0001 C CNN
 F 3 "" H 6400 1600 50  0000 C CNN
-F 4 "SS210, SK26" V 6400 1600 60  0001 C CNN "Alternatives"
        1    6400 1600
        0    -1   -1   0   
 $EndComp
 $Comp
-L GND #PWR22
+L GND #PWR016
 U 1 1 56FEC897
 P 6400 1800
-F 0 "#PWR22" H 6400 1550 50  0001 C CNN
+F 0 "#PWR016" H 6400 1550 50  0001 C CNN
 F 1 "GND" H 6400 1650 50  0000 C CNN
 F 2 "" H 6400 1800 50  0000 C CNN
 F 3 "" H 6400 1800 50  0000 C CNN
@@ -377,10 +370,10 @@ F 3 "" H 6400 1800 50  0000 C CNN
        1    0    0    -1  
 $EndComp
 $Comp
-L PWR_FLAG #FLG1
+L PWR_FLAG #FLG017
 U 1 1 56FF1E58
 P 1750 1700
-F 0 "#FLG1" H 1750 1795 50  0001 C CNN
+F 0 "#FLG017" H 1750 1795 50  0001 C CNN
 F 1 "PWR_FLAG" H 1750 1880 50  0000 C CNN
 F 2 "" H 1750 1700 50  0000 C CNN
 F 3 "" H 1750 1700 50  0000 C CNN
@@ -396,7 +389,7 @@ Wire Wire Line
 Wire Wire Line
        1250 1000 1250 900 
 Wire Wire Line
-       3350 1150 4750 1150
+       3150 1150 4750 1150
 Wire Wire Line
        1750 900  1750 1050
 Wire Wire Line
@@ -470,10 +463,10 @@ Connection ~ 7850 1350
 Text HLabel 9650 1350 2    60   3State ~ 0
 PWR_EN
 $Comp
-L GND #PWR37
+L GND #PWR018
 U 1 1 5715A615
 P 8900 1800
-F 0 "#PWR37" H 8900 1550 50  0001 C CNN
+F 0 "#PWR018" H 8900 1550 50  0001 C CNN
 F 1 "GND" H 8900 1650 50  0000 C CNN
 F 2 "" H 8900 1800 50  0000 C CNN
 F 3 "" H 8900 1800 50  0000 C CNN
@@ -486,7 +479,7 @@ U 1 1 5715A61B
 P 8900 1350
 F 0 "U8" H 8500 1600 50  0000 L CNN
 F 1 "MCP120T-450I/TT" H 8500 1500 50  0000 L CNN
-F 2 "SOIC-23-5" H 9150 1050 50  0000 C CIN
+F 2 "TO_SOT_Packages_SMD:SOT-23" H 9150 1050 50  0000 C CIN
 F 3 "" H 8900 1150 50  0000 C CNN
        1    8900 1350
        1    0    0    -1  
@@ -522,10 +515,10 @@ F 3 "" H 5100 6050 50  0000 C CNN
        1    0    0    -1  
 $EndComp
 $Comp
-L +5V #PWR10
+L +5V #PWR019
 U 1 1 5707E0DE
 P 3600 5700
-F 0 "#PWR10" H 3600 5550 50  0001 C CNN
+F 0 "#PWR019" H 3600 5550 50  0001 C CNN
 F 1 "+5V" H 3600 5840 50  0000 C CNN
 F 2 "" H 3600 5700 50  0000 C CNN
 F 3 "" H 3600 5700 50  0000 C CNN
@@ -556,10 +549,10 @@ F 3 "" H 3900 6150 50  0000 C CNN
        1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR18
+L GND #PWR020
 U 1 1 5707E0F1
 P 4650 6550
-F 0 "#PWR18" H 4650 6300 50  0001 C CNN
+F 0 "#PWR020" H 4650 6300 50  0001 C CNN
 F 1 "GND" H 4650 6400 50  0000 C CNN
 F 2 "" H 4650 6550 50  0000 C CNN
 F 3 "" H 4650 6550 50  0000 C CNN
@@ -574,6 +567,7 @@ F 0 "C40" H 6825 6050 50  0000 L CNN
 F 1 "10u" H 6825 5850 50  0000 L CNN
 F 2 "Capacitors_SMD:C_0805_HandSoldering" H 6838 5800 50  0001 C CNN
 F 3 "" H 6800 5950 50  0000 C CNN
+F 4 "6.3V" H 6800 5950 60  0001 C CNN "Description"
        1    6800 5950
        1    0    0    -1  
 $EndComp
@@ -585,6 +579,7 @@ F 0 "C41" H 7025 6050 50  0000 L CNN
 F 1 "10u" H 7025 5850 50  0000 L CNN
 F 2 "Capacitors_SMD:C_0805_HandSoldering" H 7038 5800 50  0001 C CNN
 F 3 "" H 7000 5950 50  0000 C CNN
+F 4 "6.3V" H 7000 5950 60  0001 C CNN "Description"
        1    7000 5950
        1    0    0    -1  
 $EndComp
@@ -596,14 +591,15 @@ F 0 "C42" H 7225 6050 50  0000 L CNN
 F 1 "100n" H 7225 5850 50  0000 L CNN
 F 2 "Capacitors_SMD:C_0805_HandSoldering" H 7238 5800 50  0001 C CNN
 F 3 "" H 7200 5950 50  0000 C CNN
+F 4 "6.3V" H 7200 5950 60  0001 C CNN "Description"
        1    7200 5950
        1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR24
+L GND #PWR021
 U 1 1 5707E111
 P 6800 6150
-F 0 "#PWR24" H 6800 5900 50  0001 C CNN
+F 0 "#PWR021" H 6800 5900 50  0001 C CNN
 F 1 "GND" H 6800 6000 50  0000 C CNN
 F 2 "" H 6800 6150 50  0000 C CNN
 F 3 "" H 6800 6150 50  0000 C CNN
@@ -611,10 +607,10 @@ F 3 "" H 6800 6150 50  0000 C CNN
        1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR26
+L GND #PWR022
 U 1 1 5707E117
 P 7000 6150
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 F 2 "" H 7000 6150 50  0000 C CNN
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 $EndComp
 $Comp
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 F 1 "GND" H 7200 6000 50  0000 C CNN
 F 2 "" H 7200 6150 50  0000 C CNN
 F 3 "" H 7200 6150 50  0000 C CNN
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        1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR14
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 F 1 "GND" H 3900 6400 50  0000 C CNN
 F 2 "" H 3900 6550 50  0000 C CNN
 F 3 "" H 3900 6550 50  0000 C CNN
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        1    0    0    -1  
 $EndComp
 $Comp
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 F 1 "GND" H 3600 6400 50  0000 C CNN
 F 2 "" H 3600 6550 50  0000 C CNN
 F 3 "" H 3600 6550 50  0000 C CNN
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        1    0    0    -1  
 $EndComp
 $Comp
-L +5V #PWR31
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 F 1 "+5V" H 7450 5340 50  0000 C CNN
 F 2 "" H 7450 5200 50  0000 C CNN
 F 3 "" H 7450 5200 50  0000 C CNN
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        1    0    0    -1  
 $EndComp
 $Comp
-L PWR_FLAG #FLG4
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 F 1 "PWR_FLAG" H 8000 5830 50  0000 C CNN
 F 2 "" H 8000 5650 50  0000 C CNN
 F 3 "" H 8000 5650 50  0000 C CNN
@@ -681,10 +677,9 @@ L D_Schottky D16
 U 1 1 5707E143
 P 7450 5500
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-F 1 "SS210" V 7500 5350 50  0000 C CNN
-F 2 "Diodes_SMD:SMB_Handsoldering" H 7450 5500 50  0001 C CNN
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 F 3 "" H 7450 5500 50  0000 C CNN
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 $EndComp
@@ -727,41 +722,41 @@ Wire Wire Line
 $Comp
 L R R50
 U 1 1 5707E188
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-F 3 "" H 6150 5950 50  0000 C CNN
-       1    6150 5950
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 $EndComp
 $Comp
 L R R51
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-F 3 "" H 6150 6350 50  0000 C CNN
-       1    6150 6350
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+F 3 "" H 6150 6400 50  0000 C CNN
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        1    0    0    -1  
 $EndComp
 Wire Wire Line
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 Connection ~ 6150 5750
 $Comp
-L GND #PWR21
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-F 1 "GND" H 6150 6400 50  0000 C CNN
-F 2 "" H 6150 6550 50  0000 C CNN
-F 3 "" H 6150 6550 50  0000 C CNN
-       1    6150 6550
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 Wire Wire Line
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 Wire Wire Line
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 Connection ~ 6800 5750
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 Wire Wire Line
        4650 6050 4800 6050
 Wire Wire Line
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 Wire Wire Line
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 Wire Wire Line
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 Wire Wire Line
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 $Comp
 L C C39
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 Wire Wire Line
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 $Comp
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 $EndComp
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 Wire Wire Line
        2200 3600 2200 3700
 $Comp
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 $Comp
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 $EndComp
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 $EndComp
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 $EndComp
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 $EndComp
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 $EndComp
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 $EndComp
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 $EndComp
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 $Comp
 L R R49
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-F 3 "" H 6150 4350 50  0000 C CNN
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 Wire Wire Line
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 Connection ~ 6150 3750
 $Comp
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-F 3 "" H 6150 4550 50  0000 C CNN
-       1    6150 4550
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 Wire Wire Line
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 Wire Wire Line
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 Wire Wire Line
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 L C C10
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 $EndComp
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 Wire Wire Line
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 $Comp
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 F 1 "VCCIO_34" H 7700 3550 50  0000 C CNN
 F 2 "" H 7700 3400 50  0000 C CNN
 F 3 "" H 7700 3400 50  0000 C CNN
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 $EndComp
 $Comp
-L GND #PWR38
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 F 1 "GND" H 9150 4050 50  0000 C CNN
 F 2 "" H 9150 4200 50  0000 C CNN
 F 3 "" H 9150 4200 50  0000 C CNN
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 F 1 "MCP120T-315I/TT" H 8750 3900 50  0000 L CNN
-F 2 "SOIC-23-5" H 9400 3450 50  0000 C CIN
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 F 3 "" H 9150 3550 50  0000 C CNN
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 $EndComp
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+F 3 "" H 5250 1350 50  0000 C CNN
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+Text Notes 4450 2250 0    60   ~ 0
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+F 3 "" H 3600 1550 50  0000 C CNN
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+$Comp
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+F 3 "" H 3600 1800 50  0000 C CNN
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+Wire Wire Line
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+$Comp
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+F 3 "" H 8900 2700 50  0000 C CNN
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+$EndComp
+Text Notes 6000 5250 0    60   ~ 0
+Feedback:\n3.3V: 150K/33K2\n2.5V: 150K/75K\n1.8V: 150K/47K5\n
 $EndSCHEMATC