component
TP8305B-SOT236
Public Made by Adomby adom
TOPPOWER Nanjing Extension Microelectronics DC-DC Converters, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445
{
"schema_version": 1,
"type": "component",
"slug": "tp8305b-sot236",
"title": "TP8305B-SOT236",
"brief": "TOPPOWER Nanjing Extension Microelectronics 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 (pmic)",
"tp8305b-sot236",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "TP8305B-SOT236",
"manufacturer": "TOPPOWER Nanjing Extension Microelectronics",
"package": "SOT-23-6",
"pin_count": 6,
"category": "Power Management (PMIC)",
"subcategory": "DC-DC Converters",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906270398967808",
"parts": {
"symbol": "tp8305b-sot236.kicad_sym",
"footprint": "tp8305b-sot236.kicad_mod",
"model_3d": "tp8305b-sot236-hero.glb",
"model_3d_plain": "tp8305b-sot236-etched.glb",
"model_3d_step": "tp8305b-sot236-etched.step",
"model_3d_step_plain": "tp8305b-sot236.step",
"lbr": "tp8305b-sot236.lbr"
},
"distributor_links": {
"lcsc": "C5447154"
},
"distributor_check": {
"checked_at": "2026-10-19T07:21:48Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "EXT",
"type": "output",
"description": "Drives the external NMOS switch gate, so the part can switch high-power loads; datasheet gives pull-up current 53 mA min (VDD=2V, VOH=1.6V) and pull-down current 160 mA min (VDD=2V, VOL=0.4V)."
},
{
"number": "2",
"name": "GND",
"type": "power_in",
"description": "Ground pin for the device."
},
{
"number": "3",
"name": "VDD",
"type": "power_in",
"description": "Supply input, operating range 0.8V to 5.5V, with internal overvoltage protection that stops the oscillator when VDD exceeds 5.8V (5.6V to 6.2V)."
},
{
"number": "4",
"name": "CE",
"type": "input",
"description": "Enable input: the chip runs when CE is above 0.75V and shuts down below 0.75V, and can be PWM-driven with a 500 Hz to 1 kHz, 3 V to 4 V pulse signal for LED dimming."
},
{
"number": "5",
"name": "FB",
"type": "input",
"description": "Constant-current sense input referenced to an internal 46 mV reference (43.7 mV to 48.3 mV), with constant current set as VFB/Rf between FB and GND."
},
{
"number": "6",
"name": "IS",
"type": "input",
"description": "Peak-current limit sense input referenced to an internal 50 mV reference (47 mV to 53 mV), with the input current limit set as VIS/RS between IS and GND."
}
],
"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: The MPN given is TP8305B-SOT236, but the datasheet's ordering code is TP8305B-SOT26-R and the packag; The top-view pin-number drawing on page 5 is an image and its text does not show the numbering; pin "
],
"pages_sent": 18,
"cost_usd": 0.0554,
"at": "2026-10-19T07:19:45"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906270398967808",
"pages": 18,
"sha256": "39097b0f4deb8980",
"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": "tp8305b-sot236.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": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "tp8305b-sot236-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": "48ab12a049ba669d84b756542284ee9dacf823bddfb2c855bef8c9fc9dc6e8df",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "TOPPOWER Nanjing Extension Microelectronics",
"Package": "SOT-23-6",
"Category": "Power Management (PMIC)",
"Pins": "6"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "39097b0f4deb898023fb1616d7dab3c34deb3398a435a187c0f8d35c58ab98ab",
"rows": [
{
"name": "Voltage on VDD, CE, FB, IS, EXT",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 10,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "工作结温度范围 (Operating junction temperature range)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "℃",
"min": -35,
"typ": null,
"max": 160,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "存储温度 (Storage temperature)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "℃",
"min": -65,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "焊接温度 (Soldering temperature)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "℃",
"min": null,
"typ": null,
"max": 260,
"conditions": "10s",
"source_page": 6,
"source": "datasheet"
},
{
"name": "输入电压 (Input voltage)",
"symbol": "VIN",
"kind": "electrical",
"unit": "V",
"min": 0.8,
"typ": null,
"max": 5.5,
"conditions": "方案 3 电路",
"source_page": 6,
"source": "datasheet"
},
{
"name": "VDD 过压保护 (VDD overvoltage protection)",
"symbol": "VOVP",
"kind": "electrical",
"unit": "V",
"min": 5.6,
"typ": 5.8,
"max": 6.2,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "反馈电压 (Feedback voltage)",
"symbol": "VFB",
"kind": "electrical",
"unit": "mV",
"min": 43.7,
"typ": 46,
"max": 48.3,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "峰值电流采样电压 (Peak current sense voltage)",
"symbol": "VIS",
"kind": "electrical",
"unit": "mV",
"min": 47,
"typ": 50,
"max": 53,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "CE 开关电压 (CE switching voltage)",
"symbol": "VCE",
"kind": "electrical",
"unit": "V",
"min": 0.55,
"typ": 0.75,
"max": 0.95,
"conditions": "图 6 电路，VIN=2.5V，FB 接地",
"source_page": 7,
"source": "datasheet"
},
{
"name": "保持电压 (Hold voltage)",
"symbol": "VHOLD",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.35,
"max": null,
"conditions": "方案 3 电路，对应负载电流 10mA",
"source_page": 6,
"source": "datasheet"
},
{
"name": "启动电压 (Start-up voltage)",
"symbol": "VSTART",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 1,
"max": null,
"conditions": "方案 3 电路",
"source_page": 6,
"source": "datasheet"
},
{
"name": "温度保护 (Thermal protection threshold)",
"symbol": "TOV",
"kind": "electrical",
"unit": "℃",
"min": null,
"typ": 130,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "工作频率 (Operating frequency)",
"symbol": "FOSC",
"kind": "electrical",
"unit": "KHz",
"min": null,
"typ": 700,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "限流模式 关断时间 (Current-limit mode off time)",
"symbol": "toff",
"kind": "electrical",
"unit": "nS",
"min": null,
"typ": 450,
"max": null,
"conditions": "限流模式",
"source_page": 6,
"source": "datasheet"
},
{
"name": "EXT 上拉电流 (EXT pull-up current)",
"symbol": "IEXTP",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 53,
"max": null,
"conditions": "VDD=2V，VOH=1.6V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "EXT 下拉电流 (EXT pull-down current)",
"symbol": "IEXTN",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 160,
"max": null,
"conditions": "VDD=2V，VOL=0.4V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "静态电流 (Quiescent current)",
"symbol": "IQ",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": 76,
"max": null,
"conditions": "图 6 电路，Vin=CE=5.2V，VFB=0.5V",
"source_page": 7,
"source": "datasheet"
},
{
"name": "关断电流 (Shutdown current)",
"symbol": "IQ",
"kind": "electrical",
"unit": "uA",
"min": null,
"typ": 1,
"max": null,
"conditions": "关断模式（CE 输入低电平）",
"source_page": 7,
"source": "datasheet"
},
{
"name": "效率 (Efficiency)",
"symbol": "η",
"kind": "electrical",
"unit": "%",
"min": null,
"typ": 90,
"max": null,
"conditions": "方案 3 电路",
"source_page": 7,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"tp8305b-sot236"
],
"discovery_pitch": "TP8305B-SOT236 (TOPPOWER Nanjing Extension Microelectronics) 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",
"tp8305b-sot236.kicad_sym",
"tp8305b-sot236.kicad_mod",
"tp8305b-sot236.glb",
"tp8305b-sot236.step",
"tp8305b-sot236.lbr",
"docs/hero.png",
"docs/tp8305b-sot236-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"tp8305b-sot236-hero.glb",
"tp8305b-sot236-hero.overlay.json",
"tp8305b-sot236-etched.glb"
],
"visibility": {
"public": true
}
}