component

OB2372CPA

Public Made by Adom

by adom

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

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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OB2372CPA

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

OB2372CPA 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 FB input Voltage feedback from auxiliary winding. Connect to a resistor divider from the auxiliary winding reflecting output voltage. Reference threshold Vref_fb = 2.500 V (typ).
2 RT input External over-temperature protection (OTP) input. Connect through an NTC resistor to ground; internal 50 uA source current, OTP trigger at ~1.05 V.
3 NC unconnected No connection. Leave floating.
4 COMP bidirectional CC loop compensation pin. Connect a capacitor from this pin to ground for CC loop compensation.
5 CS input Current sense input. Connect a sense resistor Rs from this pin to ground to program primary peak current. Max OCP threshold 750 mV; LEB time 300 ns.
6 GATE output Gate driver output for the external power MOSFET. Output clamp ~11.5 V; rise/fall time 150 ns / 50 ns at 1 nF load. Absolute max 24 V.
7 GND power_in Ground reference for the IC.
8 VDD power_in Power supply. Recommended operating range 9 V to 22 V (absolute max 30 V). UVLO(ON)/OFF thresholds ~7.9 V / 15.6 V; VDD_OVP ~25 V.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • OB2372CPA

CAD (KiCad official)

  • Symbol: OB2372CPA
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ob2372cpa-etched.step / ob2372cpa-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ob2372cpa.step / ob2372cpa.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ob2372cpa.step 122 KB You want the bare part, or you mark your own boards.
ob2372cpa-etched.step 2.0 MB You want the part with OB2372CPA already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 491 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 d463c94a6a0a3cf1, 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