Added README

Changed inductor footprint to match actual inductor size (oops)
Changed bootstrap loop components to 0402 to reduce ESL
Removed a somewhat pointless input cap
Moved output filter caps closer to output
Adjusted schematic to have more realistic voltage ratings
Changed output ceramic capacitors to 50V 10uF 1206's (cheaper and less
ripple)
Thermal relief spokes on THT components
Rearranged some things
Reduced board size by 1mm
Made some aesthetic improvements
Added maximum current rating, board version and license to silkscreen
Board now conforms better to IPC-2221 (particularly conductor spacing)

.gitignore

@@ -30,5 +30,5 @@ fp-info-cache
 
 outputs/
 outputs/**
-leddriver-backups/
+dcdcbuck-backups/
-leddriver-backups/**
+dcdcbuck-backups/**

README.md

@@ -0,0 +1,28 @@
+# DCDCBuck
+
+A PCB I made to convert ~60V to 12-24V based on the Vishay SiC46x chip.
+
+## Specs
+
+### Electrical
+|**Parameter**|**Value**|
+|:-----------:|:-------:|
+|Input Voltage|14-60V|
+|Output Voltage|12-24V|
+|Dropout Voltage|1.1\*V<sub>in</sub>|
+|Output Current(\<10s)|15A|
+|Output Current(>10s)|10A|
+|Quiescent Current|4mA|
+|Standby Current|6uA|
+|Efficiency|94-98%|
+
+### Limits
+|**Parameter**|**Typical**|**Max**|
+|:-----------:|:---------:|:-----:|
+|Input Voltage|14-60V|0-66V|
+|Output Current|10A|15A|
+|Temperature (Ambient)|-40-85C|-40-105C|
+
+
+## License
+This repository is licensed under the [CC BY-SA 4.0 License](https://creativecommons.org/licenses/by-sa/4.0/).

VIN.kicad_sch

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+  (wire (pts (xy 113.03 101.6) (xy 116.84 101.6))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 8ede0fee-8d89-43a2-b75c-3238095d7a9d)
+  )
   (wire (pts (xy 223.52 67.31) (xy 223.52 88.9))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 9193fb9f-6b36-4bc7-8965-05679b453420)
@@ -618,6 +618,11 @@
     (uuid f57cd8e1-7632-4df5-82c6-f468aa3dd260)
   )
 
+  (text "C8 and C9 are apparently only 25V according to Vishay"
+    (at 83.82 86.36 0)
+    (effects (font (size 1.27 1.27)) (justify left bottom))
+    (uuid 60d8d3f5-6db5-451c-a64f-207dd2c674f1)
+  )
   (text "1/3W" (at 105.41 80.01 0)
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid 87877e42-8950-44e4-a629-a510ed902b2e)
@@ -647,10 +652,10 @@
   (symbol (lib_id "Device:C_Polarized") (at 190.5 92.71 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 0158d868-7757-4060-bccb-d9bec93eeef3)
-    (property "Reference" "C15" (id 0) (at 194.31 90.5509 0)
+    (property "Reference" "C6" (id 0) (at 194.31 90.5509 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
-    (property "Value" "47uF 75V" (id 1) (at 194.31 93.0909 0)
+    (property "Value" "47uF 50V" (id 1) (at 194.31 93.0909 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
     (property "Footprint" "Capacitor_THT:CP_Radial_D8.0mm_P3.50mm" (id 2) (at 191.4652 96.52 0)
@@ -659,6 +664,9 @@
     (property "Datasheet" "~" (id 3) (at 190.5 92.71 0)
       (effects (font (size 1.27 1.27)) hide)
     )
+    (property "LCSC" "C46895" (id 4) (at 190.5 92.71 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
     (pin "1" (uuid 1e16836b-979c-4a19-ada0-ed172e93c5ea))
     (pin "2" (uuid f915d8c6-8490-4f20-99e8-0e9fef985f70))
   )
@@ -666,10 +674,10 @@
   (symbol (lib_id "Device:C_Polarized") (at 173.99 92.71 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 23dff257-bffa-417c-b685-a3d658cb88af)
-    (property "Reference" "C14" (id 0) (at 177.8 90.5509 0)
+    (property "Reference" "C7" (id 0) (at 177.8 90.5509 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
-    (property "Value" "47uF 75V" (id 1) (at 177.8 93.0909 0)
+    (property "Value" "47uF 50V" (id 1) (at 177.8 93.0909 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
     (property "Footprint" "Capacitor_THT:CP_Radial_D8.0mm_P3.50mm" (id 2) (at 174.9552 96.52 0)
@@ -678,6 +686,9 @@
     (property "Datasheet" "~" (id 3) (at 173.99 92.71 0)
       (effects (font (size 1.27 1.27)) hide)
     )
+    (property "LCSC" "C46895" (id 4) (at 173.99 92.71 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
     (pin "1" (uuid 36c25862-6cb7-4e44-8ba7-bdb35ed53c2a))
     (pin "2" (uuid d1bd3940-1fd3-4d64-81a2-2df9a7fcce90))
   )
@@ -685,7 +696,7 @@
   (symbol (lib_id "Device:R") (at 116.84 116.84 180) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 59a6ae5f-72ab-41ff-b9ce-24e227002790)
-    (property "Reference" "R10" (id 0) (at 119.38 115.5699 0)
+    (property "Reference" "R5" (id 0) (at 119.38 115.5699 0)
       (effects (font (size 1.27 1.27)) (justify right))
     )
     (property "Value" "3.9k" (id 1) (at 119.38 118.1099 0)
@@ -697,6 +708,9 @@
     (property "Datasheet" "~" (id 3) (at 116.84 116.84 0)
       (effects (font (size 1.27 1.27)) hide)
     )
+    (property "LCSC" "C23018" (id 4) (at 116.84 116.84 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
     (pin "1" (uuid 5f3cbdd5-d0e1-4496-b7ce-26e15fcf4dea))
     (pin "2" (uuid 55cf9269-7069-42ef-b82b-55163b6e16e9))
   )
@@ -704,14 +718,17 @@
   (symbol (lib_id "Device:C") (at 95.25 82.55 90) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 5be13a70-f20f-4296-94fe-682d4ced3afd)
-    (property "Reference" "C10" (id 0) (at 95.25 76.2 90))
+    (property "Reference" "C8" (id 0) (at 95.25 76.2 90))
-    (property "Value" "2.2nF 75V" (id 1) (at 95.25 78.74 90))
+    (property "Value" "2.2nF 50V" (id 1) (at 95.25 78.74 90))
-    (property "Footprint" "Capacitor_SMD:C_0402_1005Metric" (id 2) (at 99.06 81.5848 0)
+    (property "Footprint" "Capacitor_SMD:C_0603_1608Metric" (id 2) (at 99.06 81.5848 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Datasheet" "~" (id 3) (at 95.25 82.55 0)
       (effects (font (size 1.27 1.27)) hide)
     )
+    (property "LCSC" "C107082" (id 4) (at 95.25 82.55 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
     (pin "1" (uuid 955f1103-cb89-4c2b-b3b2-e7149d0857f7))
     (pin "2" (uuid 3efb66bb-c056-4bfd-9d12-ed0885411aad))
   )
@@ -719,7 +736,7 @@
   (symbol (lib_id "Device:R") (at 128.27 96.52 90) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 64f9cea2-0b75-43ad-8730-70762b6d5f29)
-    (property "Reference" "R11" (id 0) (at 128.27 90.17 90))
+    (property "Reference" "R6" (id 0) (at 128.27 90.17 90))
     (property "Value" "120k" (id 1) (at 128.27 92.71 90))
     (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (id 2) (at 128.27 98.298 90)
       (effects (font (size 1.27 1.27)) hide)
@@ -727,6 +744,9 @@
     (property "Datasheet" "~" (id 3) (at 128.27 96.52 0)
       (effects (font (size 1.27 1.27)) hide)
     )
+    (property "LCSC" "C25808" (id 4) (at 128.27 96.52 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
     (pin "1" (uuid 9ed7ef67-ff56-43f9-900d-20f51d15aa5a))
     (pin "2" (uuid 58340aaa-2c4b-4fb6-bb29-72dfb4eaab49))
   )
@@ -734,7 +754,7 @@
   (symbol (lib_id "power:GNDA") (at 116.84 123.19 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 6fd0e05b-11c8-480b-a5dc-0b56b44dd890)
-    (property "Reference" "#PWR024" (id 0) (at 116.84 129.54 0)
+    (property "Reference" "#PWR014" (id 0) (at 116.84 129.54 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Value" "GNDA" (id 1) (at 116.84 128.27 0))
@@ -750,7 +770,7 @@
   (symbol (lib_id "power:GND") (at 167.64 123.19 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 821a3b88-7209-492b-ab11-404abcabf677)
-    (property "Reference" "#PWR025" (id 0) (at 167.64 129.54 0)
+    (property "Reference" "#PWR015" (id 0) (at 167.64 129.54 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Value" "GND" (id 1) (at 167.64 128.27 0))
@@ -766,10 +786,10 @@
   (symbol (lib_id "Device:C") (at 139.7 105.41 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 8fb27da0-b02e-4401-8635-9c61650fff6a)
-    (property "Reference" "C12" (id 0) (at 143.51 104.1399 0)
+    (property "Reference" "C13" (id 0) (at 143.51 104.1399 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
-    (property "Value" "100nF 63V" (id 1) (at 143.51 106.6799 0)
+    (property "Value" "100nF 50V" (id 1) (at 143.51 106.6799 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
     (property "Footprint" "Capacitor_SMD:C_0603_1608Metric" (id 2) (at 140.6652 109.22 0)
@@ -778,17 +798,20 @@
     (property "Datasheet" "~" (id 3) (at 139.7 105.41 0)
       (effects (font (size 1.27 1.27)) hide)
     )
+    (property "LCSC" "C282519" (id 4) (at 139.7 105.41 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
     (pin "1" (uuid bf6b2260-3d95-4413-9b4d-ba90c6fb693e))
     (pin "2" (uuid da89cc2f-5774-40ef-9c2a-58d1044d3d70))
   )
 
-  (symbol (lib_id "Device:R_Potentiometer") (at 116.84 105.41 0) (mirror y) (unit 1)
+  (symbol (lib_id "Device:R_Potentiometer") (at 116.84 105.41 180) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 9aa6f732-c9db-487a-807a-a50145527239)
-    (property "Reference" "RV1" (id 0) (at 119.38 106.68 0)
+    (property "Reference" "RV1" (id 0) (at 119.38 104.14 0)
       (effects (font (size 1.27 1.27)) (justify right))
     )
-    (property "Value" "5k" (id 1) (at 119.38 104.14 0)
+    (property "Value" "5k" (id 1) (at 119.38 106.68 0)
       (effects (font (size 1.27 1.27)) (justify right))
     )
     (property "Footprint" "Potentiometer_SMD:Potentiometer_Bourns_TC33X_Vertical" (id 2) (at 116.84 105.41 0)
@@ -797,6 +820,9 @@
     (property "Datasheet" "~" (id 3) (at 116.84 105.41 0)
       (effects (font (size 1.27 1.27)) hide)
     )
+    (property "LCSC" "C719177" (id 4) (at 116.84 105.41 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
     (pin "1" (uuid 569d93a0-c390-4517-bee3-fe78809d425a))
     (pin "2" (uuid 2683e8be-200d-4f64-9f07-b0eb57203495))
     (pin "3" (uuid 4ae213fb-27b4-488b-aa7d-45b60cbceb70))
@@ -805,7 +831,7 @@
   (symbol (lib_id "Device:R") (at 107.95 76.2 90) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid a61ac5b0-6d1f-46dc-a974-03e370dcfcf2)
-    (property "Reference" "R9" (id 0) (at 107.95 71.12 90))
+    (property "Reference" "R8" (id 0) (at 107.95 71.12 90))
     (property "Value" "33k" (id 1) (at 107.95 73.66 90))
     (property "Footprint" "Resistor_SMD:R_1210_3225Metric" (id 2) (at 107.95 77.978 90)
       (effects (font (size 1.27 1.27)) hide)
@@ -813,6 +839,9 @@
     (property "Datasheet" "~" (id 3) (at 107.95 76.2 0)
       (effects (font (size 1.27 1.27)) hide)
     )
+    (property "LCSC" "C2933818" (id 4) (at 107.95 76.2 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
     (pin "1" (uuid cea39c0f-8103-4b07-a2c5-a090b51ed615))
     (pin "2" (uuid 6809b7c1-04fb-403c-a271-ecfb01637d9d))
   )
@@ -820,10 +849,10 @@
   (symbol (lib_id "Device:C_Polarized") (at 157.48 92.71 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid b2d72a83-38cf-4741-9880-cdf30e520653)
-    (property "Reference" "C13" (id 0) (at 161.29 90.5509 0)
+    (property "Reference" "C11" (id 0) (at 161.29 90.5509 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
-    (property "Value" "47uF 75V" (id 1) (at 161.29 93.0909 0)
+    (property "Value" "47uF 50V" (id 1) (at 161.29 93.0909 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
     (property "Footprint" "Capacitor_THT:CP_Radial_D8.0mm_P3.50mm" (id 2) (at 158.4452 96.52 0)
@@ -832,6 +861,9 @@
     (property "Datasheet" "~" (id 3) (at 157.48 92.71 0)
       (effects (font (size 1.27 1.27)) hide)
     )
+    (property "LCSC" "C46895" (id 4) (at 157.48 92.71 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
     (pin "1" (uuid 907cfbc1-3c4e-4ff5-9cc5-80150eb2495c))
     (pin "2" (uuid 81d15c4f-0cbc-400e-aab7-0f5d55665fe2))
   )
@@ -839,18 +871,21 @@
   (symbol (lib_id "Device:C") (at 223.52 92.71 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid ba12f070-1003-4315-b248-a7936185901e)
-    (property "Reference" "C17" (id 0) (at 227.33 91.4399 0)
+    (property "Reference" "C15" (id 0) (at 227.33 91.4399 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
-    (property "Value" "4.7uF 75V" (id 1) (at 227.33 93.9799 0)
+    (property "Value" "10uF 50V" (id 1) (at 227.33 93.9799 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
-    (property "Footprint" "Capacitor_SMD:C_1210_3225Metric" (id 2) (at 224.4852 96.52 0)
+    (property "Footprint" "Capacitor_SMD:C_1206_3216Metric" (id 2) (at 224.4852 96.52 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Datasheet" "~" (id 3) (at 223.52 92.71 0)
       (effects (font (size 1.27 1.27)) hide)
     )
+    (property "LCSC" "C89632" (id 4) (at 223.52 92.71 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
     (pin "1" (uuid 5be86454-d421-4662-8353-a6d21cecb315))
     (pin "2" (uuid 29b984b8-9011-492d-b9c4-aee5d9d35f39))
   )
@@ -858,18 +893,21 @@
   (symbol (lib_id "Device:C") (at 240.03 92.71 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid bc075801-7058-4c9f-b36b-5bb717d6dccc)
-    (property "Reference" "C18" (id 0) (at 243.84 91.4399 0)
+    (property "Reference" "C17" (id 0) (at 243.84 91.4399 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
-    (property "Value" "4.7uF 75V" (id 1) (at 243.84 93.9799 0)
+    (property "Value" "10uF 50V" (id 1) (at 243.84 93.9799 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
-    (property "Footprint" "Capacitor_SMD:C_1210_3225Metric" (id 2) (at 240.9952 96.52 0)
+    (property "Footprint" "Capacitor_SMD:C_1206_3216Metric" (id 2) (at 240.9952 96.52 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Datasheet" "~" (id 3) (at 240.03 92.71 0)
       (effects (font (size 1.27 1.27)) hide)
     )
+    (property "LCSC" "C89632" (id 4) (at 240.03 92.71 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
     (pin "1" (uuid e3ba6206-28a5-4530-89b6-c9a38272a466))
     (pin "2" (uuid 3d2106a7-05bb-48f0-80fb-002f1ff51e7a))
   )
@@ -877,10 +915,10 @@
   (symbol (lib_id "Device:C_Polarized") (at 207.01 92.71 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid c21e6d56-f7f8-416f-95ba-7ffb4ba818da)
-    (property "Reference" "C16" (id 0) (at 210.82 90.5509 0)
+    (property "Reference" "C12" (id 0) (at 210.82 90.5509 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
-    (property "Value" "47uF 75V" (id 1) (at 210.82 93.0909 0)
+    (property "Value" "47uF 50V" (id 1) (at 210.82 93.0909 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
     (property "Footprint" "Capacitor_THT:CP_Radial_D8.0mm_P3.50mm" (id 2) (at 207.9752 96.52 0)
@@ -889,6 +927,9 @@
     (property "Datasheet" "~" (id 3) (at 207.01 92.71 0)
       (effects (font (size 1.27 1.27)) hide)
     )
+    (property "LCSC" "C46895" (id 4) (at 207.01 92.71 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
     (pin "1" (uuid 60c17b81-467b-4df4-97af-cebfb731de7e))
     (pin "2" (uuid d9ac58e0-bc72-44ff-89e5-0cfd48138828))
   )
@@ -898,12 +939,15 @@
     (uuid d4ef21cd-06d7-4b4b-89fd-9ba1fdcb1db3)
     (property "Reference" "L1" (id 0) (at 114.3 62.23 90))
     (property "Value" "10uH" (id 1) (at 114.3 64.77 90))
-    (property "Footprint" "Inductor_THT:L_Radial_D12.0mm_P5.00mm_Neosid_SD12_style2" (id 2) (at 114.3 67.31 0)
+    (property "Footprint" "Inductor_THT:L_Toroid_Vertical_L22.4mm_W10.2mm_P7.90mm_Vishay_TJ4" (id 2) (at 114.3 67.31 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Datasheet" "~" (id 3) (at 114.3 67.31 0)
       (effects (font (size 1.27 1.27)) hide)
     )
+    (property "LCSC" "C3011538" (id 4) (at 114.3 67.31 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
     (pin "1" (uuid a4c37fea-e3ba-45e2-992b-396eef86e01c))
     (pin "2" (uuid 70561d6b-a4b2-4a91-97cb-a6e6042ef28c))
   )
@@ -911,14 +955,17 @@
   (symbol (lib_id "Device:C") (at 120.65 76.2 270) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid ff871c5f-6d86-48df-93bf-be4bbd90146a)
-    (property "Reference" "C11" (id 0) (at 120.65 69.85 90))
+    (property "Reference" "C4" (id 0) (at 120.65 69.85 90))
-    (property "Value" "2.2nF 75V" (id 1) (at 120.65 72.39 90))
+    (property "Value" "2.2nF 50V" (id 1) (at 120.65 72.39 90))
     (property "Footprint" "Capacitor_SMD:C_0603_1608Metric" (id 2) (at 116.84 77.1652 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Datasheet" "~" (id 3) (at 120.65 76.2 0)
       (effects (font (size 1.27 1.27)) hide)
     )
+    (property "LCSC" "C107082" (id 4) (at 120.65 76.2 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
     (pin "1" (uuid 67a75f41-aaba-46bf-811b-aec6f47b05c7))
     (pin "2" (uuid 5d18e205-9589-44d1-87a7-1d5b2244486e))
   )

dcdcbuck.kicad_pro

@@ -24,24 +24,24 @@
         "fab_text_italic": false,
         "fab_text_size_h": 1.0,
         "fab_text_size_v": 1.0,
-        "fab_text_thickness": 0.15,
+        "fab_text_thickness": 0.153,
         "fab_text_upright": false,
         "other_line_width": 0.15,
         "other_text_italic": false,
         "other_text_size_h": 1.0,
         "other_text_size_v": 1.0,
-        "other_text_thickness": 0.15,
+        "other_text_thickness": 0.153,
         "other_text_upright": false,
         "pads": {
-          "drill": 3.2,
+          "drill": 0.762,
-          "height": 6.4,
+          "height": 1.524,
-          "width": 6.4
+          "width": 1.524
         },
         "silk_line_width": 0.153,
         "silk_text_italic": false,
         "silk_text_size_h": 1.0,
         "silk_text_size_v": 1.0,
-        "silk_text_thickness": 0.15,
+        "silk_text_thickness": 0.153,
         "silk_text_upright": false,
         "zones": {
           "45_degree_only": false,