new filter design, may work lmao

hw/bom/bom_preliminary_lcsc.csv

@@ -1,27 +1,29 @@
 Index,LCSC#,MPN,Manufacturer,Package,Customer #,Description,RoHS,Quantity,MOQ,Multiple,Unit Price(€),Extended Price(€),Product Link
 1,C473369,TLV333IDBVR,TI,SOT-23-5,,"2uV 70pA 0.16V/us 102dB 17uA 350kHz 1 Rail-to-Rail Input, Rail-to-Rail Output SOT-23-5 Amplifiers RoHS",yes,5,5,5,0.2051,1.03,https://www.lcsc.com/product-detail/C473369.html
-2,C2827931,SS24L,Guangdong Hottech,SOD-123FL,,Diode Independent 40V 2A Surface Mount SOD-123FL,yes,20,20,20,0.0214,0.43,https://www.lcsc.com/product-detail/C2827931.html
+2,C2827931,SS24L,Guangdong Hottech,SOD-123FL,,Diode Independent 40V 2A Surface Mount SOD-123FL,yes,20,20,20,0.0210,0.42,https://www.lcsc.com/product-detail/C2827931.html
-3,C2931472,U263-163N-4OS1735,XKB Connection,SMD,,USB-C (USB TYPE-C) Receptacle Connector 16 Position Surface Mount,yes,5,5,5,0.2495,1.25,https://www.lcsc.com/product-detail/C2931472.html
+3,C2931472,U263-163N-4OS1735,XKB Connection,SMD,,USB-C (USB TYPE-C) Receptacle Connector 16 Position Surface Mount,yes,5,5,5,0.2518,1.26,https://www.lcsc.com/product-detail/C2931472.html
-4,C2999960,MM5Z3V3,Slkor,SOD-523,,Zener Diode Independent 3.3V 200mW Surface Mount SOD-523,yes,20,20,20,0.0179,0.36,https://www.lcsc.com/product-detail/C2999960.html
+4,C2999960,MM5Z3V3,Slkor,SOD-523,,Zener Diode Independent 3.3V 200mW Surface Mount SOD-523,yes,20,20,20,0.0181,0.36,https://www.lcsc.com/product-detail/C2999960.html
 5,C52754543,RB521S30T1G-HXY,HXY MOSFET,SOD-523,,1A 1 Independent 30V 350mV@10mA 200mA SOD-523 Single Diodes RoHS,yes,20,20,20,0.0212,0.42,https://www.lcsc.com/product-detail/C52754543.html
 6,C51933397,TPA191A1Q-SC6R-S,3PEAK,SOT-363,,SOT-363 Amplifiers RoHS,yes,5,1,1,0.3810,1.91,https://www.lcsc.com/product-detail/C51933397.html
 7,C42442062,CH32X035F8U6,WCH,QFN-20-EP(3x3),,QFN-20-EP(3x3) Microcontrollers RoHS,yes,5,1,1,0.4460,2.23,https://www.lcsc.com/product-detail/C42442062.html
 8,C780769,AP63203WU-7,DIODES,TSOT-23-6,,1.1MHz Buck Fixed 2A 3.3V TSOT-23-6 Voltage Regulators - DC DC Switching Regulators RoHS,yes,5,1,1,0.3955,1.98,https://www.lcsc.com/product-detail/C780769.html
 9,C7466527,AGM403AP,AGMSEMI,PDFN3.3x3.3-8,,N-Channel 40V 65A 69W Surface Mount PDFN3.3x3.3,yes,5,5,5,0.2575,1.29,https://www.lcsc.com/product-detail/C7466527.html
-10,C2906999,FRC0603F1803TS,FOJAN,0603,,180kΩ ±1% 100mW 0603 Thick Film Resistor,yes,100,100,100,0.0011,0.11,https://www.lcsc.com/product-detail/C2906999.html
+10,C2906999,FRC0603F1803TS,FOJAN,0603,,180kΩ ±1% 100mW 0603 Thick Film Resistor,yes,100,100,100,0.0010,0.10,https://www.lcsc.com/product-detail/C2906999.html
 11,C4169844,RS73F1JTTD2703B,KOA,0603,,200mW 270kΩ Thick Film Resistor ±25ppm/℃ ±0.1% 0603 Chip Resistor - Surface Mount RoHS,yes,5,5,5,0.0891,0.45,https://www.lcsc.com/product-detail/C4169844.html
-12,C76799,MLZ1608M4R7WT000,TDK,0603,,350mA 4.7uH 120mA 500mΩ Multilayer inductor ±20% 0603 Fixed Inductors RoHS,yes,10,10,10,0.0345,0.35,https://www.lcsc.com/product-detail/C76799.html
+12,C2932326,MT3608L,XI'AN Aerosemi Tech,SOT-23-6,,1.2MHz Boost Adjustable 2.5A SOT-23-6 Voltage Regulators - DC DC Switching Regulators RoHS,yes,10,10,10,0.0373,0.37,https://www.lcsc.com/product-detail/C2932326.html
-13,C2932326,MT3608L,XI'AN Aerosemi Tech,SOT-23-6,,1.2MHz Boost Adjustable 2.5A SOT-23-6 Voltage Regulators - DC DC Switching Regulators RoHS,yes,10,10,10,0.0373,0.37,https://www.lcsc.com/product-detail/C2932326.html
+13,C138714,TPD4E05U06DQAR,TI,USON-10(1x2.5),,14VC Clamp 2.5A@8/20us Ipp TVS DIODE USON-10(1x2.5),yes,5,5,5,0.0634,0.32,https://www.lcsc.com/product-detail/C138714.html
-14,C41414522,NSG10752,WXNSIC,SOT-23-6,,High Side Gate Driver IC MOSFET IGBT SOT-23-6,yes,5,1,1,0.4842,2.42,https://www.lcsc.com/product-detail/C41414522.html
+14,C19274408,SC7A20HTR,Hangzhou Silan Microelectronics,LGA-12(2x2),,LGA-12(2x2) Accelerometers RoHS,yes,5,1,1,0.2417,1.21,https://www.lcsc.com/product-detail/C19274408.html
-15,C46818248,SIQ-02FVS3,LZG,-,,Encoders - Industrial RoHS,yes,5,1,1,0.9816,4.91,https://www.lcsc.com/product-detail/C46818248.html
+15,C52741377,CPN201610H6R8MT,Magnetsyc,0806,,820mA 6.8uH 1.1A 545mΩ ±20% 0806 Fixed Inductors RoHS,yes,20,20,20,0.0277,0.55,https://www.lcsc.com/product-detail/C52741377.html
-16,C162670,NCU18XH103F6SRB,muRata,0603,,NTC Thermistor 10kΩ Surface Mount 0603,yes,10,10,10,0.0533,0.53,https://www.lcsc.com/product-detail/C162670.html
+16,C18723015,X087-2832TSWIG02-H14,Wisevision,-,,"0.87 128x32 SSD1312 chip I2C LCD, OLED, Graphic RoHS",yes,5,1,1,1.6435,8.22,https://www.lcsc.com/product-detail/C18723015.html
-17,C49164935,JER1206F1R006,JIERR,1206,,1W 6mΩ ±50ppm/℃ Current Sense Resistor ±1% 1206 Current Sense Resistors RoHS,yes,10,10,10,0.0371,0.37,https://www.lcsc.com/product-detail/C49164935.html
+17,C110776,RT0603BRD071KL,YAGEO,0603,,100mW 1kΩ 75V Thin Film Resistor ±25ppm/℃ ±0.1% 0603 Chip Resistor - Surface Mount RoHS,yes,20,20,20,0.0187,0.37,https://www.lcsc.com/product-detail/C110776.html
-18,C110776,RT0603BRD071KL,YAGEO,0603,,100mW 1kΩ 75V Thin Film Resistor ±25ppm/℃ ±0.1% 0603 Chip Resistor - Surface Mount RoHS,yes,20,20,20,0.0187,0.37,https://www.lcsc.com/product-detail/C110776.html
+18,C49164935,JER1206F1R006,JIERR,1206,,1W 6mΩ ±50ppm/℃ Current Sense Resistor ±1% 1206 Current Sense Resistors RoHS,yes,10,10,10,0.0371,0.37,https://www.lcsc.com/product-detail/C49164935.html
-19,C18723015,X087-2832TSWIG02-H14,Wisevision,-,,"0.87 128x32 SSD1312 chip I2C LCD, OLED, Graphic RoHS",yes,5,1,1,1.5826,7.91,https://www.lcsc.com/product-detail/C18723015.html
+19,C162670,NCU18XH103F6SRB,muRata,0603,,NTC Thermistor 10kΩ Surface Mount 0603,yes,10,10,10,0.0533,0.53,https://www.lcsc.com/product-detail/C162670.html
-20,C52741377,CPN201610H6R8MT,Magnetsyc,0806,,820mA 6.8uH 1.1A 545mΩ ±20% 0806 Fixed Inductors RoHS,yes,20,20,20,0.0277,0.55,https://www.lcsc.com/product-detail/C52741377.html
+20,C46818248,SIQ-02FVS3,LZG,-,,Encoders - Industrial RoHS,yes,5,1,1,0.9816,4.91,https://www.lcsc.com/product-detail/C46818248.html
-21,C19274408,SC7A20HTR,Hangzhou Silan Microelectronics,LGA-12(2x2),,LGA-12(2x2) Accelerometers RoHS,yes,5,1,1,0.2417,1.21,https://www.lcsc.com/product-detail/C19274408.html
+21,C41414522,NSG10752,WXNSIC,SOT-23-6,,High Side Gate Driver IC MOSFET IGBT SOT-23-6,yes,5,1,1,0.4842,2.42,https://www.lcsc.com/product-detail/C41414522.html
-22,C138714,TPD4E05U06DQAR,TI,USON-10(1x2.5),,14VC Clamp 2.5A@8/20us Ipp TVS DIODE USON-10(1x2.5),yes,5,5,5,0.0635,0.32,https://www.lcsc.com/product-detail/C138714.html
+22,C76799,MLZ1608M4R7WT000,TDK,0603,,350mA 4.7uH 120mA 500mΩ Multilayer inductor ±20% 0603 Fixed Inductors RoHS,yes,10,10,10,0.0344,0.34,https://www.lcsc.com/product-detail/C76799.html
 23,C98192,CL21A475KBQNNNE,Samsung Electro-Mechanics,0805,,4.7uF ±10% 50V Ceramic Capacitor X5R 0805,yes,10,10,10,0.0179,0.18,https://www.lcsc.com/product-detail/C98192.html
-24,C51934176,PB35V100M6X8,JIERR,"Through Hole,D6.3xL8mm",,"35V 100uF 28mΩ@100kHz 2.6A@100kHz ±20% Through Hole,D6.3xL8mm Aluminum - Polymer Capacitors RoHS",yes,10,5,5,0.1336,1.34,https://www.lcsc.com/product-detail/C51934176.html
+24,C29936,CL10B105KA8NNNC,Samsung Electro-Mechanics,0603,,1uF ±10% 25V Ceramic Capacitor X7R 0603,yes,50,50,50,0.0056,0.28,https://www.lcsc.com/product-detail/C29936.html
-25,C29936,CL10B105KA8NNNC,Samsung Electro-Mechanics,0603,,1uF ±10% 25V Ceramic Capacitor X7R 0603,yes,50,50,50,0.0056,0.28,https://www.lcsc.com/product-detail/C29936.html
+25,C1590,CL10B104KA8NNNC,Samsung Electro-Mechanics,0603,,100nF ±10% 25V Ceramic Capacitor X7R 0603,yes,100,100,100,0.0032,0.32,https://www.lcsc.com/product-detail/C1590.html
-26,C1590,CL10B104KA8NNNC,Samsung Electro-Mechanics,0603,,100nF ±10% 25V Ceramic Capacitor X7R 0603,yes,100,100,100,0.0032,0.32,https://www.lcsc.com/product-detail/C1590.html
+26,C2997487,MPD220M1VD19040R,Ymin,"SMD,7.3x4.3mm",,"35V 22uF 3.2A@100kHz 40mΩ@100kHz ±20% SMD,7.3x4.3mm Aluminum - Polymer Capacitors RoHS",yes,5,1,1,0.7063,3.53,https://www.lcsc.com/product-detail/C2997487.html
+27,C5796173,MCASU32MAB7106KPNA01,Taiyo Yuden,1210,,10uF ±10% 50V Ceramic Capacitor X7R 1210,yes,25,5,5,0.0982,2.46,https://www.lcsc.com/product-detail/C5796173.html
+28,C5370906,FC-ALX 4030D-2R2MT,FANGCHENG,"SMD,4.2x4.2mm",,"8.1A 2.2uH 8.1A 10.7mΩ Molded Inductor ±20% SMD,4.2x4.2mm Fixed Inductors RoHS",yes,5,1,1,0.4781,2.39,https://www.lcsc.com/product-detail/C5370906.html

hw/footprints/Custom.pretty/CP-SMD_L7.3-W4.3-FD.kicad_mod

@@ -0,0 +1,214 @@
+(footprint "CP-SMD_L7.3-W4.3-FD"
+	(version 20241229)
+	(generator "pcbnew")
+	(generator_version "9.0")
+	(layer "F.Cu")
+	(property "Reference" "U?"
+		(at 0 -3.1505 0)
+		(layer "F.SilkS")
+		(uuid "b0420e10-f9de-44c2-b3bc-1c63b7732991")
+		(effects
+			(font
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+				(thickness 0.15)
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+		)
+	)
+	(property "Value" "CP-SMD_L7.3-W4.3-FD"
+		(at 0 3.180433 0)
+		(layer "F.Fab")
+		(uuid "3764bd39-7877-40b8-b19a-9f54076b2216")
+		(effects
+			(font
+				(size 1 1)
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+	(property "Datasheet" ""
+		(at 0 0 0)
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+	(property "Description" ""
+		(at 0 0 0)
+		(layer "F.Fab")
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+		(effects
+			(font
+				(size 1 1)
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+	)
+	(fp_line
+		(start -3.729 -2.226)
+		(end 3.7235 -2.226)
+		(stroke
+			(width 0.1525)
+			(type default)
+		)
+		(layer "F.SilkS")
+		(uuid "1d62bf89-eb8a-4e67-ac48-0acebc5568fa")
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+	(fp_line
+		(start -3.729 2.226)
+		(end 3.7235 2.226)
+		(stroke
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+		(layer "F.SilkS")
+		(uuid "4a64e2b3-928d-4b41-a3e6-167ff4c61b8b")
+	)
+	(fp_line
+		(start -2.1995 -2.226)
+		(end -2.1995 2.226)
+		(stroke
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+			(type default)
+		)
+		(layer "F.SilkS")
+		(uuid "2c29e4a6-ec51-4063-afb9-f032a5181c45")
+	)
+	(fp_line
+		(start 3.7235 -2.226)
+		(end 3.7235 -1.499)
+		(stroke
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+			(type default)
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+		(layer "F.SilkS")
+		(uuid "fd0829d4-9dd0-4f25-937d-7d882bf2e204")
+	)
+	(fp_line
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+		(stroke
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+			(type default)
+		)
+		(layer "F.SilkS")
+		(uuid "5a74592d-8d3b-43b4-b462-1e84904fe40c")
+	)
+	(fp_poly
+		(pts
+			(xy -3.6525 -2.3025) (xy -3.6525 -1.4485) (xy -4.1095 -1.4485) (xy -4.1095 -2.3025)
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+		(stroke
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+		(fill yes)
+		(layer "F.SilkS")
+		(uuid "f647d094-8db7-4259-a567-f7bae2d2d2a6")
+	)
+	(fp_poly
+		(pts
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+		(fill yes)
+		(layer "F.SilkS")
+		(uuid "af2ca681-83ef-4789-9ac9-eb1eee4ceed2")
+	)
+	(fp_rect
+		(start -4.779 -2.4255)
+		(end 4.779 2.455433)
+		(stroke
+			(width 0.05)
+			(type default)
+		)
+		(fill no)
+		(layer "F.CrtYd")
+		(uuid "9a739e32-4328-4456-b22c-ca0679c69e76")
+	)
+	(fp_line
+		(start -3.6525 -2.15)
+		(end 3.6475 -2.15)
+		(stroke
+			(width 0.051)
+			(type default)
+		)
+		(layer "F.Fab")
+		(uuid "9fc06c76-9227-4434-aa26-f1f07167dc16")
+	)
+	(fp_line
+		(start -3.6525 2.15)
+		(end -3.6525 -2.15)
+		(stroke
+			(width 0.051)
+			(type default)
+		)
+		(layer "F.Fab")
+		(uuid "d137b34c-958c-4e5c-9e15-e6d58994fc30")
+	)
+	(fp_line
+		(start 3.6475 -2.15)
+		(end 3.6475 2.15)
+		(stroke
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+		(layer "F.Fab")
+		(uuid "328e8c4c-485b-4183-89ef-4c4d23b89dd9")
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+	(fp_line
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+		(fill yes)
+		(layer "F.Fab")
+		(uuid "54e7e42a-2223-458c-b87b-57682cd44a31")
+	)
+	(fp_text user "${REFERENCE}"
+		(at 0 0 0)
+		(layer "F.Fab")
+		(uuid "da04da3f-1fba-4420-ad19-c0aabe763e19")
+		(effects
+			(font
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+		)
+	)
+	(pad "1" smd rect
+		(at -3.4365 0 180)
+		(size 2.185 2.592)
+		(layers "F.Cu" "F.Mask" "F.Paste")
+		(uuid "7ce0cbeb-9212-4d55-a89a-c54d82414dee")
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+	(pad "2" smd rect
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sim/pi_filter.asc

@@ -1,28 +1,38 @@
 Version 4.1
-SHEET 1 1012 804
+SHEET 1 1124 804
+WIRE -384 -720 -544 -720
+WIRE -16 -720 -304 -720
 WIRE -1248 -560 -1600 -560
 WIRE -992 -560 -1168 -560
-WIRE -944 -560 -992 -560
+WIRE -880 -560 -992 -560
-WIRE -832 -560 -944 -560
+WIRE -800 -560 -880 -560
-WIRE -736 -560 -832 -560
+WIRE -544 -560 -544 -720
-WIRE -624 -560 -736 -560
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-WIRE -528 -560 -624 -560
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-WIRE -416 -560 -528 -560
+WIRE -144 -560 -320 -560
-WIRE -320 -560 -416 -560
+WIRE -16 -560 -16 -720
-WIRE -208 -560 -320 -560
+WIRE -16 -560 -64 -560
-WIRE 752 -560 -208 -560
+WIRE 80 -560 -16 -560
+WIRE 192 -560 80 -560
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+WIRE 400 -560 288 -560
+WIRE 752 -560 400 -560
 WIRE -1600 -496 -1600 -560
 WIRE -1600 -496 -1680 -496
 WIRE -1680 -480 -1680 -496
-WIRE -944 -448 -944 -560
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-WIRE -624 -448 -624 -560
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-WIRE -528 -448 -528 -560
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-WIRE -208 -448 -208 -560
+WIRE -384 -432 -544 -432
+WIRE -16 -432 -16 -560
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 WIRE -1600 -400 -1600 -496
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 WIRE -1600 -288 -1600 -320
 WIRE 752 -208 752 -560
 WIRE 240 -144 208 -144
@@ -50,8 +60,10 @@ WIRE 656 48 656 0
 WIRE 656 48 480 48
 WIRE 752 48 752 -112
 WIRE 752 48 656 48
+WIRE 976 48 752 48
 WIRE 752 96 752 48
 WIRE -1728 128 -1728 48
+WIRE 976 128 976 48
 WIRE 96 144 96 48
 WIRE 752 208 752 176
 WIRE 848 208 752 208
@@ -59,6 +71,7 @@ WIRE 752 240 752 208
 WIRE 848 256 848 208
 WIRE 752 384 752 320
 WIRE 848 384 848 320
+WIRE 976 384 976 192
 FLAG 752 384 0
 FLAG -1600 128 0
 FLAG 96 224 0
@@ -71,17 +84,16 @@ FLAG -1728 128 0
 FLAG 320 0 0
 FLAG 96 -80 cp
 FLAG 96 0 0
-FLAG -944 -320 0
+FLAG 80 -320 0
-FLAG -832 -320 0
+FLAG 192 -320 0
-FLAG -736 -320 0
+FLAG 288 -320 0
-FLAG -624 -320 0
+FLAG 976 384 0
-FLAG -528 -320 0
+FLAG -800 -320 0
-FLAG -416 -320 0
+FLAG 400 -320 0
-FLAG -320 -320 0
+FLAG -880 -320 0
-FLAG -208 -320 0
 SYMBOL nmos 704 -208 R0
 SYMATTR InstName M1
-SYMATTR Value AON7262E
+SYMATTR Value AON7140
 SYMBOL res 736 224 R0
 SYMATTR InstName R1
 SYMATTR Value {rtip}
@@ -137,32 +149,50 @@ SYMBOL ind 736 80 R0
 SYMATTR InstName L3
 SYMATTR Value 10n
 SYMATTR SpiceLine Rser=1m
-SYMBOL MCASU32MAB7106_PNA01 -944 -384 R90
+SYMBOL MCASU32MAB7106_PNA01 80 -384 R90
-SYMATTR Value Temperature=40
-SYMATTR InstName U1
-SYMBOL MCASU32MAB7106_PNA01 -832 -384 R90
-SYMATTR Value Temperature=40
-SYMATTR InstName U3
-SYMBOL MCASU32MAB7106_PNA01 -736 -384 R90
 SYMATTR Value Temperature=40
 SYMATTR InstName U4
-SYMBOL MCASU32MAB7106_PNA01 -624 -384 R90
+SYMBOL MCASU32MAB7106_PNA01 192 -384 R90
 SYMATTR Value Temperature=40
 SYMATTR InstName U5
-SYMBOL MCASU32MAB7106_PNA01 -528 -384 R90
+SYMBOL MCASU32MAB7106_PNA01 288 -384 R90
 SYMATTR Value Temperature=40
 SYMATTR InstName U6
-SYMBOL MCASU32MAB7106_PNA01 -416 -384 R90
+SYMBOL ind -416 -544 R270
+WINDOW 0 32 56 VTop 2
+WINDOW 3 5 56 VBottom 2
+SYMATTR InstName L1
+SYMATTR Value flux={L*Is}*tanh(x/{Is})
+SYMBOL cap -320 -448 R90
+WINDOW 0 0 32 VBottom 2
+WINDOW 3 32 32 VTop 2
+SYMATTR InstName C1
+SYMATTR Value 5p
+SYMBOL res -48 -576 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R3
+SYMATTR Value 12m
+SYMBOL res -288 -736 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R4
+SYMATTR Value 10Meg
+SYMBOL diode 960 192 M180
+WINDOW 0 24 64 Left 2
+WINDOW 3 24 0 Left 2
+SYMATTR InstName D1
+SYMATTR Value RB068M-60
+SYMBOL Contrib\\CHEMI-CON\\Capacitors\\Alcap-PolymerHybrid-SMD\\HHXC350ARA220ME61G -816 -432 R0
+SYMATTR InstName C2
+SYMBOL MCASU32MAB7106_PNA01 400 -384 R90
 SYMATTR Value Temperature=40
-SYMATTR InstName U7
+SYMATTR InstName U1
-SYMBOL MCASU32MAB7106_PNA01 -320 -384 R90
+SYMBOL MCASU32MAB7106_PNA01 -880 -400 R90
 SYMATTR Value Temperature=40
 SYMATTR InstName U8
-SYMBOL MCASU32MAB7106_PNA01 -208 -384 R90
-SYMATTR Value Temperature=40
-SYMATTR InstName U9
 TEXT -1656 -1016 Left 2 !.tran 12m
-TEXT -1648 -808 Left 2 !.param fsw=3k
+TEXT -1648 -808 Left 2 !.param fsw=100k
 TEXT -1648 -776 Left 2 !.param d={pout/(vbus*vbus/rtip)}
 TEXT -1648 -904 Left 2 !.param vbus=28
 TEXT -1648 -840 Left 2 !.param pout=130
@@ -170,3 +200,4 @@ TEXT -1648 -872 Left 2 !.param rtip=2.5
 TEXT 352 112 Left 2 !.lib IRS10752L.lib
 TEXT -1648 -936 Left 2 !.param vcc=3.3
 TEXT -1656 -992 Left 2 !.options abstol=10n vntol=10n reltol=0.005 gmin=10p method=gear
+TEXT -480 -632 Left 2 !.param L=2.2u Is=7