add buck converter

Signed-off-by: Peter Siegmund <mars3142@users.noreply.github.com>

aliexpress.kicad_sym

@@ -0,0 +1,141 @@
+(kicad_symbol_lib
+	(version 20241209)
+	(generator "kicad_symbol_editor")
+	(generator_version "9.0")
+	(symbol "Buck_Converter"
+		(exclude_from_sim no)
+		(in_bom yes)
+		(on_board yes)
+		(property "Reference" "J"
+			(at 0 0 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+			)
+		)
+		(property "Value" ""
+			(at 0 0 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+			)
+		)
+		(property "Footprint" "aliexpress:Buck Converter (30V to 5V)"
+			(at 0 0 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
+			)
+		)
+		(property "Datasheet" ""
+			(at 0 0 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
+			)
+		)
+		(property "Description" ""
+			(at 0 0 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
+			)
+		)
+		(symbol "Buck_Converter_0_1"
+			(rectangle
+				(start -7.62 6.35)
+				(end 8.89 -6.35)
+				(stroke
+					(width 0)
+					(type default)
+				)
+				(fill
+					(type none)
+				)
+			)
+		)
+		(symbol "Buck_Converter_1_1"
+			(pin passive line
+				(at -7.62 3.81 0)
+				(length 2.54)
+				(name "IN+"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "1"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+			(pin passive line
+				(at -7.62 -3.81 0)
+				(length 2.54)
+				(name "IN-"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "2"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+			(pin passive line
+				(at 8.89 3.81 180)
+				(length 2.54)
+				(name "OUT+"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "3"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+			(pin passive line
+				(at 8.89 -3.81 180)
+				(length 2.54)
+				(name "OUT-"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "4"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+		)
+		(embedded_fonts no)
+	)
+)

aliexpress.pretty/Buck Converter (30V to 5V).kicad_mod

@@ -0,0 +1,161 @@
+(footprint "Buck Converter (30V to 5V)"
+	(version 20241229)
+	(generator "pcbnew")
+	(generator_version "9.0")
+	(layer "F.Cu")
+	(property "Reference" "REF**"
+		(at 0 -0.5 0)
+		(unlocked yes)
+		(layer "F.SilkS")
+		(uuid "df0a74e0-83b5-4ed4-8688-beaebe709865")
+		(effects
+			(font
+				(size 1 1)
+				(thickness 0.1)
+			)
+		)
+	)
+	(property "Value" "Buck Converter (30V to 5V)"
+		(at 0 1 0)
+		(unlocked yes)
+		(layer "F.Fab")
+		(uuid "939c1b54-a1d3-44da-bd2c-401db53b764a")
+		(effects
+			(font
+				(size 1 1)
+				(thickness 0.15)
+			)
+		)
+	)
+	(property "Datasheet" ""
+		(at 0 0 0)
+		(unlocked yes)
+		(layer "F.Fab")
+		(hide yes)
+		(uuid "03527347-9b8f-47f6-b73c-76850aa11221")
+		(effects
+			(font
+				(size 1 1)
+				(thickness 0.15)
+			)
+		)
+	)
+	(property "Description" ""
+		(at 0 0 0)
+		(unlocked yes)
+		(layer "F.Fab")
+		(hide yes)
+		(uuid "92916d73-b8ea-4837-98f4-f32351d4a1ed")
+		(effects
+			(font
+				(size 1 1)
+				(thickness 0.15)
+			)
+		)
+	)
+	(attr smd)
+	(fp_line
+		(start -1.27 1.27)
+		(end 1.016 1.27)
+		(stroke
+			(width 0.1)
+			(type default)
+		)
+		(layer "F.SilkS")
+		(uuid "ec275ff8-1a6b-4d63-831f-65b089d5a3c9")
+	)
+	(fp_line
+		(start 1.016 1.27)
+		(end 0 0.762)
+		(stroke
+			(width 0.1)
+			(type default)
+		)
+		(layer "F.SilkS")
+		(uuid "9a885353-52a3-4502-a4be-619aea50f64c")
+	)
+	(fp_line
+		(start 1.016 1.27)
+		(end 0 1.778)
+		(stroke
+			(width 0.1)
+			(type default)
+		)
+		(layer "F.SilkS")
+		(uuid "fff8f222-bd74-4cd6-a012-91fa32709f39")
+	)
+	(fp_rect
+		(start -8.5 -6)
+		(end 8.5 6)
+		(stroke
+			(width 0.1)
+			(type solid)
+		)
+		(fill no)
+		(layer "F.SilkS")
+		(uuid "2db8e2ad-bbd7-467d-a7c5-b8b2ef765d79")
+	)
+	(fp_rect
+		(start -9.906 -6.35)
+		(end 9.906 6.35)
+		(stroke
+			(width 0.05)
+			(type default)
+		)
+		(fill no)
+		(layer "F.CrtYd")
+		(uuid "e964a0ad-6e83-4eb1-a043-8b8c50d8755c")
+	)
+	(fp_text user "${REFERENCE}"
+		(at 0 2.5 0)
+		(unlocked yes)
+		(layer "F.Fab")
+		(uuid "cacf9721-cd24-41d5-9cf0-3343a4391a94")
+		(effects
+			(font
+				(size 1 1)
+				(thickness 0.15)
+			)
+		)
+	)
+	(pad "1" smd roundrect
+		(at -7.62 -3.81)
+		(size 3.5 2.5)
+		(layers "F.Cu" "F.Mask" "F.Paste")
+		(roundrect_rratio 0.15)
+		(uuid "fab893e5-6545-4bec-bf39-22a79d69e1c2")
+	)
+	(pad "2" smd roundrect
+		(at -7.62 3.81)
+		(size 3.5 2.5)
+		(layers "F.Cu" "F.Mask" "F.Paste")
+		(roundrect_rratio 0.15)
+		(uuid "036ece11-89aa-44eb-a72b-02bc881af875")
+	)
+	(pad "3" smd roundrect
+		(at 7.62 -3.81)
+		(size 3.5 2.5)
+		(layers "F.Cu" "F.Mask" "F.Paste")
+		(roundrect_rratio 0.15)
+		(uuid "546dddfe-2b71-4164-93b4-15a400965898")
+	)
+	(pad "4" smd roundrect
+		(at 7.62 3.81)
+		(size 3.5 2.5)
+		(layers "F.Cu" "F.Mask" "F.Paste")
+		(roundrect_rratio 0.15)
+		(uuid "89e4a7aa-fa53-494b-ac01-6f5b41dec141")
+	)
+	(embedded_fonts no)
+	(model "${KIPRJMOD}/library/3d_models/buck_converter.step"
+		(offset
+			(xyz 0 0 0)
+		)
+		(scale
+			(xyz 1 1 1)
+		)
+		(rotate
+			(xyz 0 0 0)
+		)
+	)
+)