# OB2225MCP

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

OB2225MCP 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 input and output voltage feedback pin. Regulated to an average of 12.6 V during normal operation; UVLO(ON) ~5 V falling, UVLO(OFF) ~14 V rising, OVP threshold ~15.5 V. Recommended operating range 5.5 to 12 V, absolute max 20 V. |
| 2 | GND | power_in | Device ground / power return reference for all internal circuits. |
| 3 | NC | unconnected | No internal connection. Should be left floating or tied to GND during normal operation. |
| 4 | CS | input | Current-sense input for cycle-by-cycle current limiting. Over-current threshold Vth_oc ~575 mV, short-circuit protection threshold Vth_scp ~0.7 V, CS-floating protection threshold ~1.0 V. Includes internal 300 ns leading-edge blanking; absolute max -0.3 to 7 V. |
| 5 | C | output | Internal power BJT collector pin (paralleled with pins 6, 7, 8). Vceo 450 V, Vcbo 700 V, peak collector current 1.0 A. |
| 6 | C | output | Internal power BJT collector pin (paralleled with pins 5, 7, 8). Vceo 450 V, Vcbo 700 V, peak collector current 1.0 A. |
| 7 | C | output | Internal power BJT collector pin (paralleled with pins 5, 6, 8). Vceo 450 V, Vcbo 700 V, peak collector current 1.0 A. |
| 8 | C | output | Internal power BJT collector pin (paralleled with pins 5, 6, 7). Vceo 450 V, Vcbo 700 V, peak collector current 1.0 A. |

## 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.

- `OB2225MCP`
- `OB2225MCPA`

## CAD (KiCad official)

- Symbol: `OB2225MCP`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `ob2225mcp-etched.step` / `ob2225mcp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ob2225mcp.step` / `ob2225mcp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [OB On Bright Elec datasheet](docs/ob2225mcp-datasheet.pdf) (9 pp, sha256 `d3d021559d94cc26`, 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](docs/ob2225mcp-datasheet.pdf)