LM2576S-12

{
 "schema": "adom.pads/1",
 "slug": "lm2576s-12",
 "footprint": "TO-263-5_TabPin6",
 "generated_from": {
  "footprint": "TO-263-5_TabPin6@sha256:77e8ff2d643255fc",
  "pins": "page.json:component.pins",
  "overrides": null
 },
 "pin1": {
  "pad": "1",
  "at": [
   -7.65,
   -3.4
  ],
  "corner": "top-left",
  "source": "silk-marker",
  "derived_from": "TO-263-5_TabPin6@sha256:77e8ff2d643255fc"
 },
 "pad_count": 6,
 "symbol_pins": [
  "1",
  "2",
  "3",
  "4",
  "5",
  "6"
 ],
 "paste_apertures": 4,
 "issues": [],
 "pads": [
  {
   "pad": "1",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -7.65,
    -3.4
   ],
   "rot": 0.0,
   "size": [
    4.6,
    1.1
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "1",
   "name": "VIN",
   "type": "power_in",
   "description": "Unregulated DC input supply. Operating range 15V-40V for LM2576 (up to 60V for LM2576HV). Bypass with a low-ESR 100µF electrolytic close to the pin.",
   "is_pin1": true,
   "source": {
    "geometry": "TO-263-5_TabPin6.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "2",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -7.65,
    -1.7
   ],
   "rot": 0.0,
   "size": [
    4.6,
    1.1
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "2",
   "name": "Output",
   "type": "power_out",
   "description": "Switching output from the internal 3A NPN power switch. Connect to the catch Schottky diode (e.g. 1N5822) cathode and the LC output filter (typ. 100µH + 1000µF) that produces the regulated 12V rail.",
   "is_pin1": false,
   "source": {
    "geometry": "TO-263-5_TabPin6.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "3",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -7.65,
    0.0
   ],
   "rot": 0.0,
   "size": [
    4.6,
    1.1
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "3",
   "name": "Ground",
   "type": "power_in",
   "description": "Device power ground / signal return. Electrically common with the exposed TAB (tab is GND) - solder both to the ground plane for the thermal path.",
   "is_pin1": false,
   "source": {
    "geometry": "TO-263-5_TabPin6.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "4",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -7.65,
    1.7
   ],
   "rot": 0.0,
   "size": [
    4.6,
    1.1
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "4",
   "name": "Feedback",
   "type": "input",
   "description": "Regulation feedback input to the internal error amplifier. For the fixed 12V version, tie directly to the +12V output node; the internal divider sets the 1.23V bandgap reference for regulation. Bias current ~50nA (500nA max).",
   "is_pin1": false,
   "source": {
    "geometry": "TO-263-5_TabPin6.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "5",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -7.65,
    3.4
   ],
   "rot": 0.0,
   "size": [
    4.6,
    1.1
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "5",
   "name": "ON/OFF",
   "type": "input",
   "description": "Active-low TTL-compatible shutdown input. Logic LOW (VIL ≤ 1.0V) or grounded = regulator ON; logic HIGH (VIH ≥ 2.2V, up to VIN) = shutdown (~50µA standby current). Do not leave floating; tie to GND for always-on operation.",
   "is_pin1": false,
   "source": {
    "geometry": "TO-263-5_TabPin6.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "6",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    1.5,
    0.0
   ],
   "rot": 0.0,
   "size": [
    9.4,
    10.8
   ],
   "layers": [
    "F.Cu",
    "F.Mask"
   ],
   "thermal": false,
   "pin": "6",
   "name": "GND",
   "type": "passive",
   "description": "Exposed metal tab, internally connected to pin 3 (Ground). Provides the primary thermal path (RθJC(bot) ≈ 0.4°C/W); solder to a copper ground pour sized for the required θJA.",
   "is_pin1": false,
   "source": {
    "geometry": "TO-263-5_TabPin6.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  }
 ]
}