MIC5233YM5-TR from Microchip, 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	IN	power_in	Supply Input. Operating range 2.3V to 36V (absolute max -20V to +38V). Requires an input capacitor (typ. 1.0 µF ceramic) when the source is not near the device.
2	GND	power_in	Ground. Ground pin current is typically 18 µA at IOUT = 100 µA.
3	EN	input	Enable (Input). Active-high. Logic Low (VEN ≤ 0.6V) = Shutdown (~0.1 µA IQ); Logic High (VEN ≥ 2.0V) = Regulator on. Operating VEN range 0V to 36V.
4	NC/ADJ	input	In fixed-output versions this pin is No Connect (NC). In the adjustable-output version this pin is ADJ, the feedback input connected to a resistive voltage divider between OUT and GND to set VOUT.
5	OUT	power_out	Regulator Output. Delivers up to 100 mA. Requires ≥2.2 µF ceramic/tantalum output capacitor (max ESR 3Ω) for stability. Dropout typically 270 mV at 100 mA.

Key specifications

Parameter	Value
Manufacturer	Microchip
Package	SOT-23-5
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

MIC5233YM5-TR
MIC5233YM5-TRBS3
MIC5233YM5-TRBS3-TR

CAD (KiCad official)

Symbol: MIC5233YM5-TR
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
`mic5233ym5-tr.step`	85 KB	You want the bare part, or you mark your own boards.
`mic5233ym5-tr-etched.step`	2.3 MB	You want the part with `MIC5233YM5-TR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 555 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: Microchip datasheet (20 pp, sha256 1c0fe87e900fbcde, retrieved 2026-08-17, tier: manufacturer)
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