TX4138

@@ -1,13 +1,132 @@ {+  "schema_version": 1,+  "type": "component",   "slug": "tx4138",+  "title": "TX4138",+  "brief": "XDS DC-DC Converters, SOIC-8-EP. Datasheet-verified pinout, KiCad symbol/footprint/3D.",   "version": "0.1.0",-  "type": "component",-  "description": "XDS DC-DC Converters, SOIC-8-EP. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "license": "CC-BY-SA-4.0",   "tags": [     "component",     "pmic",     "tx4138"   ],+  "component": {+    "mpn": "TX4138",+    "manufacturer": "XDS",+    "package": "SOIC-8-EP",+    "pin_count": 9,+    "category": "PMIC",+    "subcategory": "DC-DC Converters",+    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/d024c4d04581d564b9ef26614fc64acf.pdf",+    "parts": {+      "symbol": "tx4138.kicad_sym",+      "footprint": "tx4138.kicad_mod",+      "model_3d": "tx4138.glb",+      "model_3d_step": "tx4138.step",+      "lbr": "tx4138.lbr"+    },+    "distributor_links": {},+    "pins": [+      {+        "number": "1",+        "name": "SW",+        "type": "output",+        "description": "Switch node output. Source of the internal high-side power MOSFET; connect this pin to the switching end of the inductor and to the cathode of the external freewheeling Schottky diode. Absolute maximum: -0.3V to VIN + 0.3V."+      },+      {+        "number": "2",+        "name": "ILIM",+        "type": "power_in",+        "description": "Programmable maximum peak current pin. Power current flows into the chip through an external accurate sense resistor connected between ILIM and VIN; the sense resistor value (~15-30m\u03a9) sets the peak current limit (30m\u03a9 for 2A, 20m\u03a9 for 3A, 15m\u03a9 for 4A). Internally tied to the power MOSFET, so heat dissipation on this pin matters. Absolute maximum: 62V."+      },+      {+        "number": "3",+        "name": "VIN",+        "type": "power_in",+        "description": "Supply voltage input, 4.5V to 60V unregulated. Also the drain of the internal high-side power MOSFET and power supply for the whole chip. A local input capacitor (CIN) placed as close to the IC as possible is required to prevent large voltage spikes. Absolute maximum: 62V."+      },+      {+        "number": "4",+        "name": "GND",+        "type": "power_in",+        "description": "Ground return and voltage reference for the regulated output. Should be routed carefully outside the D1-to-CIN high-current ground path to prevent switching current spikes from injecting noise into the part."+      },+      {+        "number": "5",+        "name": "FB",+        "type": "input",+        "description": "Feedback input to the error amplifier. An external resistor divider from VOUT to GND, tapped to FB, sets the output voltage; reference is 0.805V (typ, 0.785-0.825V). When FB falls below 250mV a frequency-fold-back comparator reduces oscillator frequency to prevent short-circuit current-limit runaway. Bias current ~10nA. Absolute maximum: -0.3V to +6.5V."+      },+      {+        "number": "6",+        "name": "EN",+        "type": "input",+        "description": "Enable input. Drive low to disable (turn off) the chip; leave floating (or drive high) to enable. Absolute maximum: -0.3V to +6.5V."+      },+      {+        "number": "7",+        "name": "POK",+        "type": "output",+        "description": "Power-good open-drain output. Pulled low while FB is less than 90% of the 0.8V reference; goes high-Z when output is in regulation. Requires an external pull-up (e.g. 10k\u03a9) to a system rail up to 45V; can also drive the enable pin of a downstream converter. Tie to GND or leave floating if unused. Absolute maximum: 0V to 45V."+      },+      {+        "number": "8",+        "name": "BS",+        "type": "passive",+        "description": "Bootstrap capacitor pin. Provides the positive supply rail for the high-side MOSFET gate driver (VBST - VSW = 6V typ). Connect a 100nF ceramic capacitor and a series ~5-10\u03a9 resistor between BS and SW. Absolute maximum: VSW + 6.0V."+      },+      {+        "number": "9",+        "name": "ILIM (EP)",+        "type": "power_in",+        "description": "Exposed thermal pad, internally connected to the ILIM node (same net as pin 2). Provides the primary heat-dissipation path for the internal power MOSFET and must be soldered to a copper pour that also carries the ILIM/sense-resistor current back to VIN."+      }+    ],+    "provenance": {+      "extractor": "ds2sf",+      "datasheet": {+        "url": "https://datasheet.lcsc.com/datasheet/pdf/d024c4d04581d564b9ef26614fc64acf.pdf",+        "pages": 7,+        "sha256": "cd9a50cd55184667",+        "source_tier": "lcsc"+      },+      "cad": "KiCad official (CC-BY-SA 4.0)",+      "pins": {+        "total": 9,+        "described": 9,+        "cites_pages": true,+        "refuses_to_fabricate": true+      }+    },+    "viewers": {+      "symbol": "viewers/symbol.html",+      "footprint": "viewers/footprint.html"+    }+  },+  "metadata": {+    "specs": {+      "Manufacturer": "XDS",+      "Package": "SOIC-8-EP",+      "Category": "PMIC",+      "Pins": "9"+    }+  },+  "sections": [+    "hero",+    "viewers",+    "readme",+    "breadcrumbs",+    "info"+  ],+  "discovery_triggers": [+    "tx4138"+  ],+  "discovery_pitch": "TX4138 (XDS) component page with datasheet-verified CAD.",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  },   "dependencies": {},   "hero": {     "type": "image",@@ -25,10 +144,5 @@     "docs/tx4138-datasheet.pdf",     "viewers/symbol.html",     "viewers/footprint.html"-  ],-  "visibility": "public",-  "author": {-    "name": "Ray",-    "email": "[email protected]"-  }+  ] }\ No newline at end of file