component
OB3399MP
Public Made by Adomby adom
OB(On-Bright Elec) AC-DC Controllers & Regulators, SOT-23-6. 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
markdownOB3399MP
OB(On-Bright Elec) · AC-DC Controllers & Regulators · SOT-23-6
OB3399MP from OB(On-Bright Elec), in a SOT-23-6. 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 | GATE | output | Gate driver output that drives the external power MOSFET, with a clamp voltage of 10 V and a gate voltage absolute maximum of -0.3 to 25 V. |
| 2 | CS | input | Current sense input with an over current threshold of 492 to 508 mV (500 mV typ.) and a 500 ns leading edge blanking time, where the external sense resistor Rs sets the LED constant current. |
| 3 | VDD | power_in | Power supply pin with a recommended supply range of 12 to 25 V, a UVLO(ON) of 7.3 to 9.3 V, and a VDD clamp of 25 V. |
| 4 | FB | input | Connected to a resistor divider from the primary or auxiliary winding to reflect output voltage, regulated at 1.2 V (typ.) with an over-voltage protection threshold of about 1.4 V (typ.). |
| 5 | RL | bidirectional | Load regulation configuration pin, where the resistor R3 connected to RL sets the CV load compensation. |
| 6 | GND | power_in | Ground reference pin for the controller. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | OB(On-Bright Elec) |
| Package | SOT-23-6 |
| Category | Power Management ICs |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
OB3399MP - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
ob3399mp-etched.step/ob3399mp-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ob3399mp.step/ob3399mp.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: OB(On-Bright Elec) datasheet (10 pp, sha256
828ddf4422375362, retrieved 2026-10-28, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).