component
SS540S
Public Made by Adomby adom
orisilicon AC-DC Controllers & Regulators, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSS540S
orisilicon · AC-DC Controllers & Regulators · ESOP-8
SS540S from orisilicon, in a ESOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Chip ground. |
| 2 | VOUT | power_out | Regulated output pin; output is about 22V (typ) for input above 22V and follows the input below 22V. |
| 3 | NC | unconnected | No connect, left floating. |
| 4 | NC | unconnected | No connect, left floating. |
| 5 | NC | unconnected | No connect, left floating. |
| 6 | NC | unconnected | No connect, left floating. |
| 7 | NC | unconnected | No connect, left floating. |
| 8 | VAC | power_in | High-voltage power supply input, 22 VDC to 700 VDC. |
| 9 | Epad | power_in | Exposed pad connected to chip ground, used for heat dissipation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | orisilicon |
| Package | ESOP-8 |
| Category | Power Management ICs |
| Pins | 9 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Power supply input voltage | VAC | 700 | V | VAC = 80VDC; COUT = 10µF; TA = 25°C | 2 | ||
| Supply current (quiescent) | IQ | 20 | 50 | µA | VAC = 80VDC | 2 | |
| Output voltage | VOUT | 24 | V | IOUT=1uA@VAC=80VDC | 2 | ||
| Output voltage | VOUT | 6 | V | IOUT =11mA@VAC=80VDC | 2 | ||
| Line regulation | ΔVOUT | 200 | mV | IOUT =1mA , VAC=25VDC to 700VDC | 2 | ||
| Load regulation | ΔVOUT | 15 | V | IOUT =1uA to 11mA | 2 | ||
| Short-circuit current | ISC | 22 | mA | VAC=80VDC | 2 | ||
| Output overvoltage | VOVP | 30 | V | VAC= VO | 2 | ||
| Input voltage range | 22 | 700 | VDC | 1 | |||
| Operating temperature range | Ta | -40 | 125 | °C | 1 |
CAD (KiCad official)
- Symbol:
SS540S - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
ss540s-etched.step/ss540s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ss540s.step/ss540s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: orisilicon datasheet (7 pp, sha256
ce28954bcda86996, retrieved 2026-10-22, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).