component
TD1836
Public Made by Adomby adom
Techcode Semicon DC-DC Converters, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421
{
"schema_version": 1,
"type": "component",
"slug": "td1836",
"title": "TD1836",
"brief": "Techcode Semicon DC-DC Converters, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"power management ics",
"td1836",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "TD1836",
"manufacturer": "Techcode Semicon",
"package": "SOT-23-6",
"pin_count": 6,
"category": "Power Management ICs",
"subcategory": "DC-DC Converters",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/53f293d415dd880cd1c1716bf6d07c93.pdf",
"parts": {
"symbol": "td1836.kicad_sym",
"footprint": "td1836.kicad_mod",
"model_3d": "td1836-hero.glb",
"model_3d_plain": "td1836-etched.glb",
"model_3d_step": "td1836-etched.step",
"model_3d_step_plain": "td1836.step",
"lbr": "td1836.lbr"
},
"distributor_links": {
"lcsc": "C2935198"
},
"distributor_check": {
"checked_at": "2026-11-04T23:19:11Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "BST",
"type": "power_out",
"description": "Bootstrap pin: a capacitor connected between SW and BS forms a floating supply that drives the power switch gate above the supply voltage, with BS to GND rated VSW - 0.3 V to VSW + 6 V."
},
{
"number": "2",
"name": "GND",
"type": "power_in",
"description": "Ground and voltage reference for the regulated output, which requires special layout so this node is isolated from the D1 to C1 ground path to prevent switching current spikes from inducing noise."
},
{
"number": "3",
"name": "FB",
"type": "input",
"description": "Feedback input that sets the output voltage through an external resistor divider to GND, and the frequency foldback comparator lowers the oscillator frequency when FB is below 300mV to prevent current-limit runaway during a short circuit."
},
{
"number": "4",
"name": "EN",
"type": "input",
"description": "On/off input that must be pulled above 1.35V (EN rising threshold) to turn the device on, and can be connected to VIN through a 1MΩ resistor for automatic enable."
},
{
"number": "5",
"name": "VIN",
"type": "power_in",
"description": "Supply input that operates from an 11V to 75V unregulated input per the pin description, requires C1 to prevent large input voltage spikes, and is rated -0.3 V to 80 V absolute maximum."
},
{
"number": "6",
"name": "SW",
"type": "output",
"description": "Power switching output that is the drain of the internal N-channel power MOSFET supplying the output LC filter, with SW to GND rated -0.3 V to VIN + 0.3 V."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Input voltage range is inconsistent in the datasheet: the Features list and the title say 11V to 80V; The datasheet does not assign KiCad ERC electrical types. The types for BST (power_out) and SW (outp"
],
"pages_sent": 8,
"cost_usd": 0.0306,
"at": "2026-11-04T23:19:04"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/53f293d415dd880cd1c1716bf6d07c93.pdf",
"pages": 8,
"sha256": "4947823a5dadb5ea",
"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": "td1836.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": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
"checked": "2026-11-04",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "td1836-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,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "2199af1785278c4c6925cf5a4503629bf71df3c6e0e80bdfb879bc8ca4fa9093",
"checked": "2026-11-04",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Techcode Semicon",
"Package": "SOT-23-6",
"Category": "Power Management ICs",
"Pins": "6"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "4947823a5dadb5eaad15d803a3b2bf8aa82e1df74c748609f92b79dbd2c5a37e",
"rows": [
{
"name": "Feedback Voltage",
"symbol": "VFB",
"kind": "electrical",
"unit": "V",
"min": 0.792,
"typ": 0.812,
"max": 0.832,
"conditions": "10V ≤ VIN ≤ 75V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Feedback Current",
"symbol": "IFB",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 0.1,
"conditions": "VFB = 0.85V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Switch Leakage",
"symbol": "ISW_LKG",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 1,
"conditions": "VEN=0V,VSW=0V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Oscillator Frequency",
"symbol": "fSW",
"kind": "electrical",
"unit": "kHZ",
"min": 380,
"typ": 480,
"max": 580,
"conditions": "VFB=0.6V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Under-Voltage Lockout Threshold, Rising",
"symbol": "VUVLO_R",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 7.5,
"max": 8.5,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Supply Current (Shutdown)",
"symbol": "IS",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.1,
"max": 1,
"conditions": "VEN=0V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Supply Current (Quiescent)",
"symbol": "IQ",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.73,
"max": 0.85,
"conditions": "VEN=2V,VFB=1V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VIN Supply Voltage (VIN to Gnd)",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 80,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "SW to GND Voltage",
"symbol": "VSW",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "BS to GND Voltage (printed as VSW - 0.3 to VSW + 6)",
"symbol": "VBS",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "All Other Pins",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Junction Temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "ºC",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Storage Temperature",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "ºC",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Maximum Lead Soldering Temperature",
"symbol": "TSDR",
"kind": "absolute_maximum",
"unit": "ºC",
"min": null,
"typ": null,
"max": 260,
"conditions": "10 seconds",
"source_page": 3,
"source": "datasheet"
},
{
"name": "VIN Supply Voltage",
"symbol": "VIN",
"kind": "recommended_operating",
"unit": "V",
"min": 11,
"typ": null,
"max": 75,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Operating Junction Temperature",
"symbol": "",
"kind": "recommended_operating",
"unit": "oC",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Junction-to-Ambient Resistance",
"symbol": "θJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 250,
"max": null,
"conditions": "Resistance in free air (Note 2), SOT-23-6",
"source_page": 4,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"td1836"
],
"discovery_pitch": "TD1836 (Techcode Semicon) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"td1836.kicad_sym",
"td1836.kicad_mod",
"td1836.glb",
"td1836.step",
"td1836.lbr",
"docs/hero.png",
"docs/td1836-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"td1836-hero.glb",
"td1836-hero.overlay.json",
"td1836-etched.glb"
],
"visibility": {
"public": true
}
}