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ob2223cpa

Public Made by Adom

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OB On Bright Elec AC-DC Controllers and Regulators, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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OB2223CPA

OB On Bright Elec · AC-DC Controllers and Regulators · SOP-8

OB2223CPA from OB On Bright Elec, in a SOP-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 VDD power_in Power supply pin and output voltage feedback input. Regulated to 12.5V in normal operation; UVLO on/off at ~7.0V/12.5V; OVP at 25V; absolute max -0.3 to 40V.
2 COMP input Loop compensation pin. Connect a capacitor from this pin to GND to set the error-amplifier / control-network response. Absolute max -0.3 to 7V.
3 ENB input Enable / mode select input. Connect to GND for 12V output operation. Absolute max -0.3 to 7V.
4 CS input Current-sense input from the MOSFET source-side sense resistor for cycle-by-cycle current limiting. Over-current threshold ~925mV (890/960mV min/max), 200ns leading-edge blanking, 50kΩ input impedance. Absolute max -0.3 to 7V.
5 DRAIN output High-voltage MOSFET drain pin (600V BVdss, ~25Ω Rdson typ. in SOP8). Connected to the primary side of the inductor/transformer. Pins 5 and 6 are internally shorted.
6 DRAIN output High-voltage MOSFET drain pin (600V BVdss, ~25Ω Rdson typ. in SOP8). Connected to the primary side of the inductor/transformer. Pins 5 and 6 are internally shorted.
7 GND power_in Device ground / MOSFET source reference. Pins 7 and 8 are internally connected.
8 GND power_in Device ground / MOSFET source reference. Pins 7 and 8 are internally connected.

Key specifications

Parameter Value
Manufacturer OB On Bright Elec
Package SOP-8
Category PMIC
Pins 8

Ordering variants

  • OB2223CPA
  • OB2223CPAAP

CAD (KiCad official)

  • Symbol: OB2223CPA
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ob2223cpa-etched.step / ob2223cpa-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ob2223cpa.step / ob2223cpa.glb are the bare package body.

Provenance

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

  • Datasheet: OB On Bright Elec datasheet (None pp, sha256 8d5e10cdfec3e607, 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

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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