(export (version "E")
  (design
    (source "C:\\Users\\gayli\\Documents\\Work\\SnorkelAI\\Ohm Bench\\kicad_smps3p3V_circuit\\kicad_smps3p3V_circuit.kicad_sch")
    (date "2026-02-21T12:06:27-1000")
    (tool "Eeschema 9.0.7")
    (sheet (number "1") (name "/") (tstamps "/")
      (title_block
        (title)
        (company)
        (rev)
        (date)
        (source "kicad_smps3p3V_circuit.kicad_sch")
        (comment (number "1") (value ""))
        (comment (number "2") (value ""))
        (comment (number "3") (value ""))
        (comment (number "4") (value ""))
        (comment (number "5") (value ""))
        (comment (number "6") (value ""))
        (comment (number "7") (value ""))
        (comment (number "8") (value ""))
        (comment (number "9") (value "")))))
  (components
    (comp (ref "C1")
      (value "100 uF")
      (datasheet "~")
      (description "Polarized capacitor, US symbol")
      (fields
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Polarized capacitor, US symbol"))
      (libsource (lib "Device") (part "C_Polarized_US") (description "Polarized capacitor, US symbol"))
      (property (name "Sheetname") (value "Root"))
      (property (name "Sheetfile") (value "kicad_smps3p3V_circuit.kicad_sch"))
      (property (name "ki_keywords") (value "cap capacitor"))
      (property (name "ki_fp_filters") (value "CP_*"))
      (sheetpath (names "/") (tstamps "/"))
      (tstamps "95cf1836-42cc-4b4a-a657-eb9803fc427f"))
    (comp (ref "C2")
      (value "1000 uF")
      (datasheet "~")
      (description "Polarized capacitor, US symbol")
      (fields
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Polarized capacitor, US symbol"))
      (libsource (lib "Device") (part "C_Polarized_US") (description "Polarized capacitor, US symbol"))
      (property (name "Sheetname") (value "Root"))
      (property (name "Sheetfile") (value "kicad_smps3p3V_circuit.kicad_sch"))
      (property (name "ki_keywords") (value "cap capacitor"))
      (property (name "ki_fp_filters") (value "CP_*"))
      (sheetpath (names "/") (tstamps "/"))
      (tstamps "fa5c0dad-89f9-42f6-97ef-2ecc0f62b328"))
    (comp (ref "D1")
      (value "1N5822")
      (footprint "Diode_THT:D_DO-201AD_P15.24mm_Horizontal")
      (datasheet "http://www.vishay.com/docs/88526/1n5820.pdf")
      (description "40V 3A Schottky Barrier Rectifier Diode, DO-201AD")
      (fields
        (field (name "Footprint") "Diode_THT:D_DO-201AD_P15.24mm_Horizontal")
        (field (name "Datasheet") "http://www.vishay.com/docs/88526/1n5820.pdf")
        (field (name "Description") "40V 3A Schottky Barrier Rectifier Diode, DO-201AD"))
      (libsource (lib "Diode") (part "1N5822") (description "40V 3A Schottky Barrier Rectifier Diode, DO-201AD"))
      (property (name "Sheetname") (value "Root"))
      (property (name "Sheetfile") (value "kicad_smps3p3V_circuit.kicad_sch"))
      (property (name "ki_keywords") (value "diode Schottky"))
      (property (name "ki_fp_filters") (value "D*DO?201AD*"))
      (sheetpath (names "/") (tstamps "/"))
      (tstamps "aaa3ea98-14db-4883-9a02-a08eff6f8bf6"))
    (comp (ref "L1")
      (value "100 uH")
      (datasheet "~")
      (description "Inductor, small symbol")
      (fields
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Inductor, small symbol"))
      (libsource (lib "Device") (part "L_Small") (description "Inductor, small symbol"))
      (property (name "Sheetname") (value "Root"))
      (property (name "Sheetfile") (value "kicad_smps3p3V_circuit.kicad_sch"))
      (property (name "ki_keywords") (value "inductor choke coil reactor magnetic"))
      (property (name "ki_fp_filters") (value "Choke_* *Coil* Inductor_* L_*"))
      (sheetpath (names "/") (tstamps "/"))
      (tstamps "8ff96771-ecbe-4f26-bc6e-ba732cc8ed7c"))
    (comp (ref "U1")
      (value "LM2576HVS-3.3")
      (footprint "Package_TO_SOT_SMD:TO-263-5_TabPin3")
      (datasheet "http://www.ti.com/lit/ds/symlink/lm2576.pdf")
      (description "3.3V, 3A, SIMPLE SWITCHER® Step-Down Voltage Regulator, High Voltage Input, TO-263")
      (fields
        (field (name "Footprint") "Package_TO_SOT_SMD:TO-263-5_TabPin3")
        (field (name "Datasheet") "http://www.ti.com/lit/ds/symlink/lm2576.pdf")
        (field (name "Description") "3.3V, 3A, SIMPLE SWITCHER® Step-Down Voltage Regulator, High Voltage Input, TO-263"))
      (libsource (lib "Regulator_Switching") (part "LM2576HVS-3.3") (description "3.3V, 3A, SIMPLE SWITCHER® Step-Down Voltage Regulator, High Voltage Input, TO-263"))
      (property (name "Sheetname") (value "Root"))
      (property (name "Sheetfile") (value "kicad_smps3p3V_circuit.kicad_sch"))
      (property (name "ki_keywords") (value "Step-Down Voltage Regulator 3.3V 3A High Voltage"))
      (property (name "ki_fp_filters") (value "TO?263*"))
      (sheetpath (names "/") (tstamps "/"))
      (tstamps "36ce7af2-e21f-4b1c-9b78-e82d1e4c2b0b")))
  (libparts
    (libpart (lib "Device") (part "C_Polarized_US")
      (description "Polarized capacitor, US symbol")
      (docs "~")
      (footprints
        (fp "CP_*"))
      (fields
        (field (name "Reference") "C")
        (field (name "Value") "C_Polarized_US")
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Polarized capacitor, US symbol"))
      (pins
        (pin (num "1") (name "") (type "passive"))
        (pin (num "2") (name "") (type "passive"))))
    (libpart (lib "Device") (part "L_Small")
      (description "Inductor, small symbol")
      (docs "~")
      (footprints
        (fp "Choke_*")
        (fp "*Coil*")
        (fp "Inductor_*")
        (fp "L_*"))
      (fields
        (field (name "Reference") "L")
        (field (name "Value") "L_Small")
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Inductor, small symbol"))
      (pins
        (pin (num "1") (name "") (type "passive"))
        (pin (num "2") (name "") (type "passive"))))
    (libpart (lib "Diode") (part "1N5822")
      (description "40V 3A Schottky Barrier Rectifier Diode, DO-201AD")
      (docs "http://www.vishay.com/docs/88526/1n5820.pdf")
      (footprints
        (fp "D*DO?201AD*"))
      (fields
        (field (name "Reference") "D")
        (field (name "Value") "1N5822")
        (field (name "Footprint") "Diode_THT:D_DO-201AD_P15.24mm_Horizontal")
        (field (name "Datasheet") "http://www.vishay.com/docs/88526/1n5820.pdf")
        (field (name "Description") "40V 3A Schottky Barrier Rectifier Diode, DO-201AD"))
      (pins
        (pin (num "1") (name "K") (type "passive"))
        (pin (num "2") (name "A") (type "passive"))))
    (libpart (lib "Regulator_Switching") (part "LM2576HVS-3.3")
      (description "3.3V, 3A, SIMPLE SWITCHER® Step-Down Voltage Regulator, High Voltage Input, TO-263")
      (docs "http://www.ti.com/lit/ds/symlink/lm2576.pdf")
      (footprints
        (fp "TO?263*"))
      (fields
        (field (name "Reference") "U")
        (field (name "Value") "LM2576HVS-3.3")
        (field (name "Footprint") "Package_TO_SOT_SMD:TO-263-5_TabPin3")
        (field (name "Datasheet") "http://www.ti.com/lit/ds/symlink/lm2576.pdf")
        (field (name "Description") "3.3V, 3A, SIMPLE SWITCHER® Step-Down Voltage Regulator, High Voltage Input, TO-263"))
      (pins
        (pin (num "1") (name "VIN") (type "power_in"))
        (pin (num "2") (name "OUT") (type "output"))
        (pin (num "3") (name "GND") (type "power_in"))
        (pin (num "4") (name "FB") (type "input"))
        (pin (num "5") (name "~{ON}/OFF") (type "input")))))
  (libraries
    (library (logical "Device")
      (uri "C:\\Program Files\\KiCad\\9.0\\share\\kicad\\symbols\\/Device.kicad_sym"))
    (library (logical "Diode")
      (uri "C:\\Program Files\\KiCad\\9.0\\share\\kicad\\symbols\\/Diode.kicad_sym"))
    (library (logical "Regulator_Switching")
      (uri "C:\\Program Files\\KiCad\\9.0\\share\\kicad\\symbols\\/Regulator_Switching.kicad_sym")))
  (nets
    (net (code "1") (name "+48V") (class "Default")
      (node (ref "C1") (pin "1") (pintype "passive"))
      (node (ref "U1") (pin "1") (pinfunction "VIN") (pintype "power_in")))
    (net (code "2") (name "GND") (class "Default")
      (node (ref "C1") (pin "2") (pintype "passive"))
      (node (ref "C2") (pin "2") (pintype "passive"))
      (node (ref "D1") (pin "2") (pinfunction "A") (pintype "passive"))
      (node (ref "U1") (pin "3") (pinfunction "GND") (pintype "power_in"))
      (node (ref "U1") (pin "5") (pinfunction "~{ON}/OFF") (pintype "input")))
    (net (code "3") (name "Net-(D1-K)") (class "Default")
      (node (ref "D1") (pin "1") (pinfunction "K") (pintype "passive"))
      (node (ref "L1") (pin "1") (pintype "passive"))
      (node (ref "U1") (pin "2") (pinfunction "OUT") (pintype "output")))
    (net (code "4") (name "Net-(U1-FB)") (class "Default")
      (node (ref "C2") (pin "1") (pintype "passive"))
      (node (ref "L1") (pin "2") (pintype "passive"))
      (node (ref "U1") (pin "4") (pinfunction "FB") (pintype "input")))))