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Contents

README

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OB2365AMP

OB On Bright Elec · AC-DC Controllers and Regulators · SOT-23-6

OB2365AMP from OB On Bright Elec, in a SOT-23-6. 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 GND power_in Device ground reference. All internal analog and control circuits are referenced to this pin.
2 FB input Feedback input from the secondary-side optocoupler. The internal current loop compares CS against FB to regulate the peak primary current. Absolute max -0.3 to 7 V.
3 DEM input Demagnetization / auxiliary-winding sense input used for QR valley detection, external NTC-based OTP, and output OVP sensing (OVP trip level set by the resistor between the aux winding and this pin). Absolute max -0.3 to 7 V.
4 CS input Current-sense input from the primary MOSFET source resistor. Provides cycle-by-cycle peak current limiting and inner-loop control. Absolute max -0.3 to 7 V; negative spikes down to -1 V permitted under limited duty/current.
5 VCC power_in Chip supply voltage, typically from the auxiliary winding after startup. Recommended operating range 12 to 26 V; absolute max 29.5 V. Includes UVLO with hysteresis and VCC OVP protection.
6 GATE output Gate driver output for the external primary-side power MOSFET. Totem-pole driver providing the PWM switching waveform.

Key specifications

Parameter Value
Manufacturer OB On Bright Elec
Package SOT-23-6
Category PMIC
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • OB2365AMP

CAD (KiCad official)

  • Symbol: OB2365AMP
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: ob2365amp-etched.step / ob2365amp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ob2365amp.step / ob2365amp.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: OB On Bright Elec datasheet (2 pp, sha256 69ce314eda809d77, 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).

Datasheet PDF