MIC29302WU from UMW, in a TO-263-5. 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	EN	input	Enable (active-high CMOS-compatible). VIH ≥ 2.4 V turns the regulator on; VIL ≤ 0.8 V shuts it down. Do not float. Absolute max V_EN = −0.3 V to VIN.
2	IN	power_in	Unregulated input supply. Operating range +2.8 V to +16 V (absolute max 26 V). Bypass with C_IN at the pin.
3	GND	power_in	Device ground. The TO-263/TO-220 exposed tab is also internally connected to GND and serves as the primary thermal path.
4	OUT	power_out	Regulated output. Sources up to 3 A. Requires an output capacitor (e.g. 10 µF) for stability and transient response.
5	ADJ	input	Adjust/feedback pin. Regulates the divider node to V_REF ≈ 1.242 V (1.215-1.267 V). V_OUT = 1.242 × (R1/R2 + 1). Adjust-pin bias current typ 40 nA / max 120 nA.

Key specifications

Parameter	Value
Manufacturer	UMW
Package	TO-263-5
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

MIC29302WUU
MIC29302WUT

CAD (KiCad official)

Symbol: MIC29302WU
Footprint: Package_TO_SOT_SMD:TO-263-5_TabPin6
3D model: TO-263-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`mic29302wu.step`	180 KB	You want the bare part, or you mark your own boards.
`mic29302wu-etched.step`	2.2 MB	You want the part with `MIC29302WU` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 561 faces against 135 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: UMW datasheet (20 pp, sha256 8a0b6b1072cde916, 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