MCP1801T-5002I from TECH PUBLIC, in a SOT-23-5. 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	VIN	power_in	Unregulated supply voltage input. Operating range 2.0V to 10.0V; absolute maximum 12V. Bypass with a 1 uF capacitor to GND close to the pin.
2	GND	power_in	Ground terminal (VSS). Common return for input, output, and shutdown reference. Datasheet labels this pin as VSS in the pinout diagram and GND in the pin function table.
3	SHDN	input	Active-low shutdown input. Drive high (>= 1.6V, up to VIN) to enable the regulator; drive low (<= 0.25V) to disable output. In shutdown the device draws only ~0.01 uA (typical).
4	NC	unconnected	No internal connection. May be left floating or tied to GND for improved thermal/EMI performance.
5	VOUT	power_out	Regulated 5.0V output. Delivers up to 150 mA with typical +/-2% tolerance at 25 degC. Requires a minimum 1 uF output capacitor (ceramic, tantalum, or aluminum electrolytic) for stability.

Key specifications

Parameter	Value
Manufacturer	TECH PUBLIC
Package	SOT-23-5
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

MCP1801T-5002II/OT

CAD (KiCad official)

Symbol: MCP1801T-5002I
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`mcp1801t-5002i.step`	85 KB	You want the bare part, or you mark your own boards.
`mcp1801t-5002i-etched.step`	2.5 MB	You want the part with `MCP1801T-5002I` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 616 faces against 102 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: TECH PUBLIC datasheet (8 pp, sha256 9ca92624d6792a63, 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