Replace step-down converter with LDO
This commit is contained in:
parent
3d2621ac67
commit
3201e82df1
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@ -26,10 +26,6 @@ https://www.st.com/resource/en/user_manual/dm00075710-stmtouch-driver-user-manua
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https://www.st.com/resource/en/data_brief/32f0-touch-lib.pdf
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### Richtek Tech RT8009-33GJ5
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https://datasheet.lcsc.com/szlcsc/Richtek-Tech-RT8009-33GJ5_C16078.pdf
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### MEIHUA MHPA1515RGBDT
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https://datasheet.lcsc.com/szlcsc/1907221506_MEIHUA-MHPA1515RGBDT_C404281.pdf
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@ -37,3 +33,7 @@ https://datasheet.lcsc.com/szlcsc/1907221506_MEIHUA-MHPA1515RGBDT_C404281.pdf
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### ST AN4312
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https://www.st.com/resource/en/application_note/dm00087990-design-with-surface-sensors-for-touch-sensing-applications-on-mcus-stmicroelectronics.pdf
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### Torex Semicon XC6206P332MR
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https://datasheet.lcsc.com/szlcsc/Torex-Semicon-XC6206P332MR_C5446.pdf
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@ -52,29 +52,6 @@ X ~ 2 0 -100 80 U 50 50 1 1 P
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ENDDRAW
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ENDDEF
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#
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# Device_L
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#
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DEF Device_L L 0 40 N N 1 F N
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F0 "L" -50 0 50 V V C CNN
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F1 "Device_L" 75 0 50 V V C CNN
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F2 "" 0 0 50 H I C CNN
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F3 "" 0 0 50 H I C CNN
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$FPLIST
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Choke_*
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*Coil*
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Inductor_*
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L_*
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$ENDFPLIST
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DRAW
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A 0 -75 25 -899 899 0 1 0 N 0 -100 0 -50
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A 0 -25 25 -899 899 0 1 0 N 0 -50 0 0
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A 0 25 25 -899 899 0 1 0 N 0 0 0 50
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A 0 75 25 -899 899 0 1 0 N 0 50 0 100
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X 1 1 0 150 50 D 50 50 1 1 P
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X 2 2 0 -150 50 U 50 50 1 1 P
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ENDDRAW
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ENDDEF
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#
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# Device_LED_RABG
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#
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DEF Device_LED_RABG D 0 0 Y N 1 F N
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@ -207,24 +184,22 @@ X VDDA 9 100 1500 100 D 50 50 1 1 W
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ENDDRAW
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ENDDEF
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#
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# Regulator_Switching_PAM2305AAB330
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# Regulator_Linear_XC6206PxxxMR
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#
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DEF Regulator_Switching_PAM2305AAB330 U 0 20 Y Y 1 F N
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F0 "U" -300 250 50 H V L CNN
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F1 "Regulator_Switching_PAM2305AAB330" -100 250 50 H V L CNN
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F2 "Package_TO_SOT_SMD:TSOT-23-5" 50 -250 50 H I L CNN
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F3 "" -250 -350 50 H I C CNN
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ALIAS PAM2305AAB280 PAM2305AAB250 PAM2305AAB180 PAM2305AAB150 PAM2305AAB120 PAM2305AABADJ
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DEF Regulator_Linear_XC6206PxxxMR U 0 10 Y Y 1 F N
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F0 "U" -150 125 50 H V C CNN
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F1 "Regulator_Linear_XC6206PxxxMR" 0 125 50 H V L CNN
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F2 "Package_TO_SOT_SMD:SOT-23" 0 225 50 H I C CIN
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F3 "" 0 0 50 H I C CNN
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ALIAS APE8865N-15-HF-3 APE8865N-16-HF-3 APE8865N-17-HF-3 APE8865N-18-HF-3 APE8865N-19-HF-3 APE8865N-20-HF-3 APE8865N-21-HF-3 APE8865N-22-HF-3 APE8865N-23-HF-3 APE8865N-24-HF-3 APE8865N-25-HF-3 APE8865N-26-HF-3 APE8865N-27-HF-3 APE8865N-28-HF-3 APE8865N-29-HF-3 APE8865N-30-HF-3 APE8865N-31-HF-3 APE8865N-32-HF-3 APE8865N-33-HF-3 AP2127N-1.0 AP2127N-1.2 AP2127N-1.5 AP2127N-1.8 AP2127N-2.5 AP2127N-2.8 AP2127N-3.0 AP2127N-3.3 XC6206PxxxMR
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$FPLIST
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TSOT?23*
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SOT?23*
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$ENDFPLIST
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DRAW
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S -300 200 300 -200 0 1 10 f
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X Vin 1 -400 100 100 R 50 50 1 1 W
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X GND 2 0 -300 100 U 50 50 1 1 W
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X EN 3 -400 -100 100 R 50 50 1 1 I
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X FB 4 400 -100 100 L 50 50 1 1 I
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X SW 5 400 100 100 L 50 50 1 1 O
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S -200 75 200 -200 0 1 10 f
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X GND 1 0 -300 100 U 50 50 1 1 W
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X VO 2 300 0 100 L 50 50 1 1 w
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X VI 3 -300 0 100 R 50 50 1 1 W
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ENDDRAW
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ENDDEF
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#
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172
anykey.sch
172
anykey.sch
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@ -449,108 +449,71 @@ Wire Wire Line
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Wire Wire Line
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4200 1900 4800 1900
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$Comp
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L Regulator_Switching:PAM2305AAB330 U?
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U 1 1 5F8D63FD
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P 2000 3000
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F 0 "U?" H 2000 3367 50 0000 C CNN
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F 1 "RT8009-33GJ5" H 2000 3276 50 0000 C CNN
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F 2 "Package_TO_SOT_SMD:TSOT-23-5" H 2050 2750 50 0001 L CNN
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F 3 "https://www.richtek.com/assets/product_file/RT8009/DS8009-07.pdf" H 1750 2650 50 0001 C CNN
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1 2000 3000
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1 0 0 -1
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$EndComp
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$Comp
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L power:GND #PWR?
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U 1 1 5F8E147F
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P 2000 3350
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F 0 "#PWR?" H 2000 3100 50 0001 C CNN
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F 1 "GND" H 2005 3177 50 0000 C CNN
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F 2 "" H 2000 3350 50 0001 C CNN
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F 3 "" H 2000 3350 50 0001 C CNN
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1 2000 3350
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P 1550 3300
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F 0 "#PWR?" H 1550 3050 50 0001 C CNN
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F 1 "GND" H 1555 3127 50 0000 C CNN
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F 2 "" H 1550 3300 50 0001 C CNN
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F 3 "" H 1550 3300 50 0001 C CNN
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1 1550 3300
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1 0 0 -1
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$EndComp
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$Comp
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L power:VBUS #PWR?
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U 1 1 5F8DF4E5
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P 1000 2850
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F 0 "#PWR?" H 1000 2700 50 0001 C CNN
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F 1 "VBUS" H 1015 3023 50 0000 C CNN
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F 2 "" H 1000 2850 50 0001 C CNN
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F 3 "" H 1000 2850 50 0001 C CNN
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1 1000 2850
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P 1000 2900
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F 0 "#PWR?" H 1000 2750 50 0001 C CNN
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F 1 "VBUS" H 1015 3073 50 0000 C CNN
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F 2 "" H 1000 2900 50 0001 C CNN
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F 3 "" H 1000 2900 50 0001 C CNN
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1 1000 2900
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1 0 0 -1
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$EndComp
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Wire Wire Line
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2000 3300 2000 3350
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$Comp
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L Device:L L?
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U 1 1 5F901304
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P 2600 2900
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F 0 "L?" V 2790 2900 50 0000 C CNN
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F 1 "4u7" V 2699 2900 50 0000 C CNN
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F 2 "" H 2600 2900 50 0001 C CNN
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F 3 "~" H 2600 2900 50 0001 C CNN
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1 2600 2900
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0 -1 -1 0
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$EndComp
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$Comp
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L power:+3V3 #PWR?
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U 1 1 5F901CC6
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P 2950 2850
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F 0 "#PWR?" H 2950 2700 50 0001 C CNN
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F 1 "+3V3" H 2965 3023 50 0000 C CNN
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F 2 "" H 2950 2850 50 0001 C CNN
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F 3 "" H 2950 2850 50 0001 C CNN
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1 2950 2850
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P 2100 2900
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F 0 "#PWR?" H 2100 2750 50 0001 C CNN
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F 1 "+3V3" H 2115 3073 50 0000 C CNN
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F 2 "" H 2100 2900 50 0001 C CNN
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F 3 "" H 2100 2900 50 0001 C CNN
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1 2100 2900
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1 0 0 -1
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$EndComp
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Wire Wire Line
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2400 2900 2450 2900
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$Comp
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L Device:C_Small C?
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U 1 1 5F9081DC
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P 2950 3100
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F 0 "C?" H 3042 3146 50 0000 L CNN
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F 1 "10u" H 3042 3055 50 0000 L CNN
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F 2 "" H 2950 3100 50 0001 C CNN
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F 3 "~" H 2950 3100 50 0001 C CNN
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1 2950 3100
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P 2100 3100
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F 0 "C?" H 2192 3146 50 0000 L CNN
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F 1 "1u" H 2192 3055 50 0000 L CNN
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F 2 "" H 2100 3100 50 0001 C CNN
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F 3 "~" H 2100 3100 50 0001 C CNN
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1 2100 3100
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1 0 0 -1
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$EndComp
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Wire Wire Line
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2400 3100 2800 3100
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Wire Wire Line
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2800 3100 2800 2900
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$Comp
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L power:GND #PWR?
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U 1 1 5F919BC6
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P 2950 3350
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F 0 "#PWR?" H 2950 3100 50 0001 C CNN
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F 1 "GND" H 2955 3177 50 0000 C CNN
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F 2 "" H 2950 3350 50 0001 C CNN
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F 3 "" H 2950 3350 50 0001 C CNN
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1 2950 3350
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P 2100 3300
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F 0 "#PWR?" H 2100 3050 50 0001 C CNN
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F 1 "GND" H 2105 3127 50 0000 C CNN
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F 2 "" H 2100 3300 50 0001 C CNN
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F 3 "" H 2100 3300 50 0001 C CNN
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1 2100 3300
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1 0 0 -1
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$EndComp
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Wire Wire Line
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2750 2900 2800 2900
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Connection ~ 2800 2900
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Wire Wire Line
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2800 2900 2950 2900
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Wire Wire Line
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2950 3000 2950 2900
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Wire Wire Line
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2950 3200 2950 3350
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2100 3200 2100 3300
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$Comp
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L power:GND #PWR?
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U 1 1 5F93233C
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P 1000 3350
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F 0 "#PWR?" H 1000 3100 50 0001 C CNN
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F 1 "GND" H 1005 3177 50 0000 C CNN
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F 2 "" H 1000 3350 50 0001 C CNN
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F 3 "" H 1000 3350 50 0001 C CNN
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1 1000 3350
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P 1000 3300
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F 0 "#PWR?" H 1000 3050 50 0001 C CNN
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F 1 "GND" H 1005 3127 50 0000 C CNN
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F 2 "" H 1000 3300 50 0001 C CNN
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F 3 "" H 1000 3300 50 0001 C CNN
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1 1000 3300
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1 0 0 -1
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$EndComp
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$Comp
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@ -558,44 +521,14 @@ L Device:C_Small C?
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U 1 1 5F93753A
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P 1000 3100
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F 0 "C?" H 1092 3146 50 0000 L CNN
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F 1 "4u7" H 1092 3055 50 0000 L CNN
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F 1 "1u" H 1092 3055 50 0000 L CNN
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F 2 "" H 1000 3100 50 0001 C CNN
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F 3 "~" H 1000 3100 50 0001 C CNN
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1 1000 3100
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1 0 0 -1
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$EndComp
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Wire Wire Line
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1000 3200 1000 3350
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Wire Wire Line
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1550 3100 1600 3100
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Wire Wire Line
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1000 2850 1000 2900
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Wire Wire Line
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1000 2900 1300 2900
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Wire Wire Line
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1350 3100 1300 3100
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Wire Wire Line
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1300 3100 1300 2900
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Connection ~ 1300 2900
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Wire Wire Line
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1300 2900 1600 2900
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$Comp
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L Device:R_Small R?
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U 1 1 5F8E1873
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P 1450 3100
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F 0 "R?" V 1254 3100 50 0000 C CNN
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F 1 "10k" V 1345 3100 50 0000 C CNN
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F 2 "" H 1450 3100 50 0001 C CNN
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F 3 "~" H 1450 3100 50 0001 C CNN
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1 1450 3100
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0 -1 -1 0
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$EndComp
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Wire Wire Line
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2950 2850 2950 2900
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Connection ~ 2950 2900
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Wire Wire Line
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1000 3000 1000 2900
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Connection ~ 1000 2900
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1000 3200 1000 3300
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$Comp
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L Device:R_Small R?
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U 1 1 5F9366E4
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@ -685,4 +618,31 @@ Wire Wire Line
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2450 4500 2500 4500
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Wire Wire Line
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2500 4500 2500 4450
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$Comp
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L Regulator_Linear:XC6206PxxxMR U?
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U 1 1 5FA01775
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P 1550 2950
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F 0 "U?" H 1550 3192 50 0000 C CNN
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F 1 "XC6206P332MR" H 1550 3101 50 0000 C CNN
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F 2 "Package_TO_SOT_SMD:SOT-23" H 1550 3175 50 0001 C CIN
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F 3 "https://www.torexsemi.com/file/xc6206/XC6206.pdf" H 1550 2950 50 0001 C CNN
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1 1550 2950
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1 0 0 -1
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$EndComp
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Wire Wire Line
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1550 3250 1550 3300
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Wire Wire Line
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1000 2900 1000 2950
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Wire Wire Line
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2100 2900 2100 2950
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Wire Wire Line
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1250 2950 1000 2950
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Connection ~ 1000 2950
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Wire Wire Line
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1000 2950 1000 3000
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Wire Wire Line
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1850 2950 2100 2950
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Connection ~ 2100 2950
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Wire Wire Line
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2100 2950 2100 3000
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$EndSCHEMATC
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