component
OC5820
Public Made by Adomby adom
OCX(欧创芯) DC-DC Converters, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 4d ago |
| viewers | 4d ago |
| oc5820-etched.glb | 4d ago |
| oc5820-etched.step | 4d ago |
| oc5820-hero.glb | 4d ago |
| oc5820-hero.overlay.json | 4d ago |
| oc5820.glb | 4d ago |
| oc5820.kicad_mod | 4d ago |
| oc5820.kicad_sym | 4d ago |
| oc5820.lbr | 4d ago |
| oc5820.step | 4d ago |
| package.json | 4d ago |
| page.json | 4d ago |
| README.md | 4d ago |
OC5820
OCX(欧创芯) · DC-DC Converters · ESOP-8
OC5820 from OCX(欧创芯), 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 | VIN | power_in | Chip supply input, operating range 6-40V (abs max 45V), with UVLO rising threshold 5.5V. |
| 2 | EN | input | Chip enable pin, rising threshold 1.1V and falling threshold 0.8V; tie to VIN if unused and do not leave floating. |
| 3 | FS | input | Switching frequency set pin, 140kHz when floating or set by a resistor to ground (450kHz with 470kΩ), recommended max 500kHz. |
| 4 | FB | input | Output feedback voltage pin with 0.82V typical reference (0.8-0.84V), connected to the R1/R2 divider. |
| 5 | VSS | power_in | Ground pin, internally common with pin 6. |
| 6 | VSS | power_in | Ground pin, internally common with pin 5. |
| 7 | SW | output | Switch output pin to the inductor and Schottky diode, internal 40V/3A power MOSFET, voltage -0.3V to VIN+0.3V. |
| 8 | SW | output | Switch output pin to the inductor and Schottky diode, internal 40V/3A power MOSFET, voltage -0.3V to VIN+0.3V. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | OCX(欧创芯) |
| Package | ESOP-8 |
| Category | Power Management (PMIC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Feedback voltage | VFB | 0.8 | 0.82 | 0.84 | V | 6V< VIN < 40V | 4 |
| VIN, EN pin operating voltage range | VIN | -0.3 | 45 | V | 3 | ||
| SW pin operating voltage range | VSW | -0.3 | V | Printed max is VIN+0.3 V (expression, not a number) | 3 | ||
| FB, FS pin operating voltage range | Vmax | -0.3 | 6 | V | 3 | ||
| EN pin sink current | IEN_SINK | 100 | μA | 3 | |||
| Operating temperature range | TA | -40 | 85 | oC | 3 | ||
| SOP8 package maximum power dissipation | PSOP8 | 0.8 | W | SOP8 package | 3 | ||
| Storage temperature range | TSTG | -45 | 150 | oC | 3 | ||
| Soldering temperature range | TSD | 260 | oC | Time less than 30 s | 3 | ||
| Electrostatic discharge voltage | VESD | 2000 | V | Human body model | 3 | ||
| VIN quiescent current | IQ | 0.15 | 0.2 | mA | VEN = 2V, VFB = 1V | 4 | |
| Input voltage range | 6 | 40 | V | 1 | |||
| Feedback current | IFB | 0.1 | μA | VFB = 0.85V | 4 | ||
| Switch leakage current | ISW_LKG | 1 | μA | VEN = 0V, VSW = 0V | 4 | ||
| Current limit threshold | ILIM | 4.2 | A | 4 | |||
| Oscillator frequency | fSW | 140 | kHz | FS floating | 4 | ||
| Oscillator frequency | fSW | 450 | kHz | FS connected to GND through 470kΩ | 4 | ||
| Maximum duty cycle | DMAX | 95 | % | VFB = 0.6V | 4 | ||
| Minimum on time | τON | 100 | ns | 4 | |||
| UVLO rising voltage | UUVLO_R | 5.5 | V | 4 | |||
| UVLO hysteresis voltage | UUVLO_HYS | 700 | mV | 4 | |||
| EN rising threshold | VEN_R | 1.1 | V | 4 | |||
| EN falling threshold | VEN_F | 0.8 | V | 4 | |||
| EN hysteresis threshold | VEN_HYS | 300 | mV | 4 | |||
| EN output current | IEN | 0.1 | μA | VEN = 2V | 4 | ||
| VIN shutdown current | IS | 1 | μA | VEN = 0V | 4 | ||
| Thermal shutdown temperature | TSD | 165 | oC | 4 | |||
| Thermal shutdown hysteresis | TSD_HYS | 20 | oC | 4 |
CAD (KiCad official)
- Symbol:
OC5820 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
oc5820-etched.step/oc5820-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);oc5820.step/oc5820.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: OCX(欧创芯) datasheet (9 pp, sha256
b1f4149bcc5f6175, retrieved 2026-11-02, 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+vision), consensusclaude-opus-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).