AP2900TB-A1

{
  "slug": "ap2900tb-a1",
  "version": "0.2.1",
  "type": "component",
  "description": "Wuxi Chipown Micro electronics DC-DC Converters, SOT-23-5L. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "pmic",
    "ap2900tb-a1"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ap2900tb-a1.kicad_sym",
    "ap2900tb-a1.kicad_mod",
    "ap2900tb-a1.glb",
    "ap2900tb-a1.step",
    "ap2900tb-a1-etched.step",
    "ap2900tb-a1.lbr",
    "docs/hero.png",
    "docs/ap2900tb-a1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "pads.json",
    "ap2900tb-a1-etched.glb",
    "ap2900tb-a1-hero.glb",
    "ap2900tb-a1-hero.overlay.json"
  ],
  "component": {
    "mpn": "AP2900TB-A1",
    "manufacturer": "Wuxi Chipown Micro electronics",
    "package": "SOT-23-5L",
    "pin_count": 5,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2210111430_Wuxi-Chipown-Micro-electronics-AP2900TB-A1_C2930954.pdf",
    "parts": {
      "symbol": "ap2900tb-a1.kicad_sym",
      "footprint": "ap2900tb-a1.kicad_mod",
      "model_3d": "ap2900tb-a1-hero.glb",
      "model_3d_plain": "ap2900tb-a1.glb",
      "model_3d_step": "ap2900tb-a1-etched.step",
      "model_3d_step_plain": "ap2900tb-a1.step",
      "lbr": "ap2900tb-a1.lbr"
    },
    "distributor_links": {
      "lcsc": "C2930954"
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply voltage, 6 V to 40 V operating (42 V absolute max). Requires a low-ESR decoupling capacitor (1 uF X5R/X7R MLCC in parallel with a 100 uF electrolytic recommended) placed as close as possible between VIN and GND to supply AC current to the internal power MOSFETs."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin. Common return for internal control circuitry and the low-side synchronous MOSFET source. Recommended to connect to the ground copper plane via vias for good thermal dissipation and noise suppression."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable input. High level enables the IC, low level disables the IC (shutdown mode). Must not be tied directly to VIN, and must not be connected to VIN through a series resistor. Drive voltage must be kept below 5 V. Internally pulled up by an approximate 50 uA current source to ~4.5 V, so the IC auto-starts if EN is left floating. If an external pull-down resistor is used to disable, it must be < 4.7 kΩ to guarantee a valid low."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Feedback input. Connect to the midpoint of the external output feedback divider to program the output voltage (VFB reference 1.2 V typ). Route away from the SW switching node to minimize noise pickup."
      },
      {
        "number": "5",
        "name": "SW",
        "type": "output",
        "description": "Switch node. Drain of the internal high-side P-MOSFET and source of the low-side N-MOSFET; connect to the external inductor with a short, wide, thick trace to minimize EMI and switching loss."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2210111430_Wuxi-Chipown-Micro-electronics-AP2900TB-A1_C2930954.pdf",
        "pages": 14,
        "sha256": "c213c0743d731535",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -1.1375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23-5@sha256:455a3f7c3e5eb5b8",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "ap2900tb-a1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ap2900tb-a1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "e91a7f45b50ed4f6905f37e3c5a9b517eb6014afa867fa06d1903dce9e4c0910",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "title": "AP2900TB-A1",
  "brief": "Wuxi Chipown Micro electronics DC-DC Converters, SOT-23-5L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "metadata": {
    "specs": {
      "Manufacturer": "Wuxi Chipown Micro electronics",
      "Package": "SOT-23-5L",
      "Category": "PMIC",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c213c0743d731535",
      "rows": [
        {
          "name": "Input voltage (VIN)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 6,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input UVLO threshold (rising)",
          "symbol": "VUVLO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 5.5,
          "max": 5.7,
          "conditions": "VIN rising",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback voltage threshold",
          "symbol": "VFB-TH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.176,
          "typ": 1.2,
          "max": 1.224,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switching frequency",
          "symbol": "FSW-TYP",
          "kind": "electrical",
          "unit": "kHz",
          "min": 80,
          "typ": 100,
          "max": 120,
          "conditions": "ILOAD = 0.5 A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN internal pull-up current",
          "symbol": "IEN",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 50,
          "max": 70,
          "conditions": "EN = GND",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current (open loop, not switching)",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 200,
          "max": 420,
          "conditions": "Open loop, switching inactive",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Absolute max VIN",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 42,
          "conditions": "Voltage relative to GND pin",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Absolute max SW",
          "symbol": "SW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 42,
          "conditions": "Voltage relative to GND pin; printed as (VIN + 0.2 V) ≤ 42 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Absolute max FB",
          "symbol": "FB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "Voltage relative to GND pin",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD rating (human body model)",
          "symbol": "ESD HBM",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "Class 3A per ANSI/ESDA/JEDEC JS-001-2017",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum operating junction temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input UVLO threshold hysteresis",
          "symbol": "VUVLO-HYS",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.2,
          "max": null,
          "conditions": "VIN falling",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback OVP threshold",
          "symbol": "VFB-OVP",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 113,
          "max": null,
          "conditions": "VFB rising",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback OVP threshold hysteresis",
          "symbol": "VFB-HYS",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "VFB falling",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback short-circuit protection threshold",
          "symbol": "VSCP",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "VFB falling",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum duty cycle",
          "symbol": "DMAX",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum on-time",
          "symbol": "TON-MIN",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN turn-on threshold",
          "symbol": "VEN-H",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "VEN rising",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN turn-off threshold",
          "symbol": "VEN-L",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.4,
          "max": null,
          "conditions": "VEN falling",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High-side MOSFET on-resistance",
          "symbol": "RDS(ON)H",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 450,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low-side MOSFET on-resistance",
          "symbol": "RDS(ON)L",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 270,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High-side MOSFET leakage current",
          "symbol": "ILEAK_H",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "VSW = 0 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low-side MOSFET leakage current",
          "symbol": "ILEAK_L",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "VSW = VIN",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input current, shutdown",
          "symbol": "ISHD",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 80,
          "max": null,
          "conditions": "EN = GND",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "No-load input current, closed loop",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 450,
          "max": null,
          "conditions": "Closed loop, no load",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback pin current",
          "symbol": "IFB",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Internal cycle-by-cycle current limit",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Soft-start time",
          "symbol": "TSS",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 3,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown threshold",
          "symbol": "TSD",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 175,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown hysteresis",
          "symbol": "TSD_HYS",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction-to-case",
          "symbol": "ӨJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
  "discovery_triggers": [
    "ap2900tb-a1"
  ],
  "discovery_pitch": "AP2900TB-A1 (Wuxi Chipown Micro electronics) component page with datasheet-verified CAD.",
  "visibility": "public"
}