OB2273MP

{
  "schema_version": 1,
  "type": "component",
  "slug": "ob2273mp",
  "title": "OB2273MP",
  "brief": "OB On Bright Elec AC-DC Controllers and Regulators, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "ob2273mp"
  ],
  "component": {
    "mpn": "OB2273MP",
    "manufacturer": "OB On Bright Elec",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "PMIC",
    "subcategory": "AC-DC Controllers and Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/cf5df20d68c94f378ca620296b253b47.pdf",
    "parts": {
      "symbol": "ob2273mp.kicad_sym",
      "footprint": "ob2273mp.kicad_mod",
      "model_3d": "ob2273mp-etched.glb",
      "model_3d_plain": "ob2273mp.glb",
      "model_3d_step": "ob2273mp-etched.step",
      "model_3d_step_plain": "ob2273mp.step",
      "lbr": "ob2273mp.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return for the IC. All signal and power references are measured with respect to this pin."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Feedback input pin. The PWM duty cycle is determined by the voltage level into this pin and the current-sense signal at Pin 4 (CS). Input impedance ~16 kOhm; open-loop VFB ≈ 4.2 V. Burst-mode thresholds ~1.175 V (enter) / 1.275 V (exit); power-limiting threshold ~3.7 V."
      },
      {
        "number": "3",
        "name": "RT",
        "type": "bidirectional",
        "description": "Dual-function pin. Either connected through an NTC resistor to ground for over-temperature shutdown/latch control, or connected through a Zener to VDD for adjustable over-voltage protection. Sources ~100 uA (IRT); OTP threshold ~1 V; external OVP threshold ~4 V."
      },
      {
        "number": "4",
        "name": "CS",
        "type": "input",
        "description": "Current-sense input for cycle-by-cycle peak-current control. Internal current-limit threshold ~0.75 V at zero duty cycle; CS clamp ~0.9 V; leading-edge blanking ~220 ns; input impedance ~40 kOhm."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin. Recommended operating range 12-25 V; absolute max 30 V DC. UVLO(ON) ~9 V, UVLO(OFF) ~15.3 V. Startup current ~5 uA; operating current ~1.8 mA. Internal Zener clamp ~32 V (Vdd_clamp) and OVP ~28 V."
      },
      {
        "number": "6",
        "name": "GATE",
        "type": "output",
        "description": "Totem-pole gate driver output for the external power MOSFET. Output clamp ~12 V; VOH ≥ 6 V @ 20 mA; VOL ≤ 1 V @ 5 mA. Rise/fall times ~175 ns / 85 ns into 1000 pF."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/cf5df20d68c94f378ca620296b253b47.pdf",
        "pages": 12,
        "sha256": "1b0c18884f0cf7d9",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ob2273mp.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": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ob2273mp-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": "65a373610fa14686d513f17cea326c58b696cad9decea6d7c963f8ffc0018812",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "OB On Bright Elec",
      "Package": "SOT-23-6",
      "Category": "PMIC",
      "Pins": "6"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ob2273mp"
  ],
  "discovery_pitch": "OB2273MP (OB On Bright Elec) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ob2273mp.kicad_sym",
    "ob2273mp.kicad_mod",
    "ob2273mp.glb",
    "ob2273mp.step",
    "ob2273mp.lbr",
    "docs/hero.png",
    "docs/ob2273mp-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ob2273mp-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "OB2273MP",
      "kind": "packaging"
    },
    {
      "mpn": "OB2273MPAP",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T03:25:25.883Z"
}