OB5269CPA
Public Made by Adomby adom
OB On Bright Elec AC-DC Controllers and Regulators, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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README
markdownOB5269CPA
OB On Bright Elec · AC-DC Controllers and Regulators · SOIC-8
OB5269CPA from OB On Bright Elec, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | RT | input | Dual function pin. Either connected through an NTC resistor to ground for over-temperature shutdown/latch control, or connected through a Zener to VDD for adjustable over-voltage protection. Input rating -0.3 to 7V. |
| 2 | FB | input | Feedback input pin. The PWM duty cycle is determined by the voltage level into this pin and the current-sense signal at the CS pin. Input impedance ~17 kOhm; open-loop voltage ~5V; input rating -0.3 to 7V. |
| 3 | CS | input | Current sense input from the MOSFET source-side sense resistor. Internal current-limit threshold ~0.75V (zero duty cycle); input impedance ~40 kOhm; leading-edge blanking ~320 ns. Input rating -0.3 to 7V. |
| 4 | GND | power_in | Device ground reference for all internal circuitry and the gate driver return. |
| 5 | GATE | output | Totem-pole gate driver output for the external power MOSFET. |
| 6 | VDD | power_in | Power supply pin. Operating range 12 to 23.5 V; UVLO-on ~9.3V, UVLO-off (recovery) ~15.3V; absolute max 30V; internal Zener clamp ~32V (10 mA max). |
| 7 | NC | unconnected | No connection. Leave floating or tie to a non-conductive pad. |
| 8 | HV | power_in | High-voltage startup pin. Connected to the line input or bulk capacitor via resistors for startup. Absolute max -0.3 to 500V; startup supply current ~2.8 mA; post-startup leakage <10 uA at HV=500V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | OB On Bright Elec |
| Package | SOIC-8 |
| Category | PMIC |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
OB5269CPA
CAD (KiCad official)
- Symbol:
OB5269CPA - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
ob5269cpa.step |
122 KB | You want the bare part, or you mark your own boards. |
ob5269cpa-etched.step |
2.2 MB | You want the part with OB5269CPA already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 523 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: OB On Bright Elec datasheet (11 pp, sha256
3f0a5934ebb7bd31, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).