component
SS550
Public Made by Adomby adom
orisilicon AC-DC Controllers And Regulators, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"type": "component",
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"title": "SS550",
"brief": "orisilicon AC-DC Controllers And Regulators, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
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"manufacturer": "orisilicon",
"package": "ESOP-8",
"pin_count": 9,
"category": "Power Management (PMIC)",
"subcategory": "AC-DC Controllers And Regulators",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/5d65237f1f2e26bd1a0405ebe8d7702a.pdf",
"parts": {
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"lbr": "ss550.lbr"
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"distributor_links": {
"lcsc": "C22392481"
},
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"checked_at": "2026-10-27T06:49:27Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
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"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "HV",
"type": "power_in",
"description": "High-voltage power input; the datasheet gives an input range of 40VDC to 900VDC, with BV up to 1000V."
},
{
"number": "2",
"name": "NC",
"type": "unconnected",
"description": "No connection; left floating."
},
{
"number": "3",
"name": "NC",
"type": "unconnected",
"description": "No connection; left floating."
},
{
"number": "4",
"name": "GND",
"type": "power_in",
"description": "Chip ground."
},
{
"number": "5",
"name": "BGIN",
"type": "input",
"description": "1.3V voltage input; on SS550 a resistor between REG9 and BGIN sets the REG9 output between 1.3V and 9V."
},
{
"number": "6",
"name": "REG9",
"type": "power_out",
"description": "9V voltage output (typ. 9V); on SS550 it is adjustable from 1.3V to 9V through a resistor to BGIN, with an absolute maximum of 22V to GND."
},
{
"number": "7",
"name": "REG18",
"type": "power_out",
"description": "18V voltage output (typ. 18V), with an absolute maximum of 22V to GND."
},
{
"number": "8",
"name": "HVR",
"type": "passive",
"description": "High-voltage resistor output; an internal 48MΩ resistor between HV and HVR allows sensing of the high-voltage input, with an absolute maximum of 1000V to GND."
},
{
"number": "9",
"name": "Epad",
"type": "power_in",
"description": "Exposed pad connected to chip ground for heat dissipation."
}
],
"provenance": {
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"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 is listed as orisilicon, but the datasheet is from Sinasilicon (Rev. A, SS550/SS551). The pi; The datasheet gives two eSOP-8 pin configurations. Figure 2 (SS550) puts BGIN on pin 5 and REG9 on p; Pins 2-3 are a range in the source table (NC, floating). They are listed here as separate entries 2 "
],
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"cost_usd": 0.0129,
"at": "2026-10-27T06:49:05"
},
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"url": "https://datasheet.lcsc.com/datasheet/pdf/5d65237f1f2e26bd1a0405ebe8d7702a.pdf",
"pages": 10,
"sha256": "5e95ca8aa16d2a3f",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 9,
"described": 9,
"cites_pages": true,
"refuses_to_fabricate": true
}
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{
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"metadata": {
"specs": {
"Manufacturer": "orisilicon",
"Package": "ESOP-8",
"Category": "Power Management (PMIC)",
"Pins": "9"
},
"characteristics": {
"version": 1,
"source": "datasheet",
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"rows": [
{
"name": "Input voltage HV",
"symbol": "HV",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 900,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Supply current (power consumption)",
"symbol": "IQ",
"kind": "electrical",
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"min": null,
"typ": 15,
"max": 20,
"conditions": "HV = 50V",
"source_page": 2,
"source": "datasheet"
},
{
"name": "18V output current",
"symbol": "IOUT18",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 16,
"max": null,
"conditions": "HV=50V, REG18=5V",
"source_page": 2,
"source": "datasheet"
},
{
"name": "18V output current",
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"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 24,
"max": null,
"conditions": "HV=50V, REG18=0V",
"source_page": 2,
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},
{
"name": "9V output current",
"symbol": "IOUT9",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 20,
"max": null,
"conditions": "REG18=18V",
"source_page": 2,
"source": "datasheet"
},
{
"name": "18V line regulation",
"symbol": "ΔVOUT18",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 2.5,
"max": null,
"conditions": "HV=50V to 900V, IOUT =0.5mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "18V load regulation",
"symbol": "ΔVOUT18",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 10,
"max": null,
"conditions": "HV=50V, IOUT =1uA to 10mA",
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{
"name": "9V line regulation",
"symbol": "ΔVOUT9",
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"min": null,
"typ": 100,
"max": null,
"conditions": "IOUT =1mA , REG18=11V to 18V",
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},
{
"name": "9V load regulation",
"symbol": "ΔVOUT9",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 200,
"max": null,
"conditions": "IOUT =1uA to 20mA, REG18=18V",
"source_page": 2,
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},
{
"name": "High-voltage resistor between HV and HVR",
"symbol": "RHV",
"kind": "electrical",
"unit": "MΩ",
"min": null,
"typ": 48,
"max": null,
"conditions": "R between HV and HVR",
"source_page": 2,
"source": "datasheet"
},
{
"name": "BGIN to GND resistor",
"symbol": "Rdn",
"kind": "electrical",
"unit": "KΩ",
"min": null,
"typ": 600,
"max": null,
"conditions": "R between BGIN and GND",
"source_page": 2,
"source": "datasheet"
},
{
"name": "BGIN to REG9 resistor",
"symbol": "Rup",
"kind": "electrical",
"unit": "MΩ",
"min": null,
"typ": 3.6,
"max": null,
"conditions": "R between REG9 and BGIN",
"source_page": 2,
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},
{
"name": "HV, HVR to GND voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 1000,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "REGB to GND voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 30,
"conditions": "",
"source_page": 3,
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},
{
"name": "REG18, REG9 to GND voltage",
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"min": -0.3,
"typ": null,
"max": 22,
"conditions": "",
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{
"name": "BGIN to GND voltage",
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"kind": "absolute_maximum",
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"min": -0.3,
"typ": null,
"max": 9,
"conditions": "",
"source_page": 3,
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},
{
"name": "Storage temperature range",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Operating junction temperature range",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
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{
"name": "Operating ambient temperature range",
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"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 3,
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},
{
"name": "Junction-to-ambient thermal resistance",
"symbol": "θJA",
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"unit": "°C/W",
"min": null,
"typ": 45,
"max": null,
"conditions": "8-Lead SOP",
"source_page": 3,
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{
"name": "Junction-to-case thermal resistance",
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"unit": "°C/W",
"min": null,
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"max": null,
"conditions": "8-Lead SOP",
"source_page": 3,
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}
]
}
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