TCR2EF33 from TOSHIBA LM CT, in a TSOT-25. 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 input supply. Operating range 1.5 V to 5.5 V (absolute max 6.0 V). Bypass to GND with CIN >= 0.1 µF (ceramic acceptable).
2	GND	power_in	Device ground reference and return for VIN, VOUT, and CONTROL. Connect to system ground plane.
3	CONTROL	input	Enable input. HIGH (VCT >= 1.0 V, up to 5.5 V) turns the regulator ON; LOW (VCT <= 0.4 V) or OPEN turns it OFF (internal pull-down between CONTROL and GND). Standby current IB(OFF) ~0.1 µA typ. at VCT = 0 V.
4	NC	unconnected	No internal connection. May be left floating; recommended to leave unconnected or tie to GND per PCB layout preference.
5	VOUT	power_out	Regulated 3.3 V output (TCR2EF33). Sources up to 200 mA. Requires COUT >= 1.0 µF ceramic to GND for stability. Includes auto-discharge when regulator is turned off via CONTROL.

Key specifications

Parameter	Value
Manufacturer	TOSHIBA LM CT
Package	TSOT-25
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

TCR2EF33
TCR2EE33

CAD (KiCad official)

Symbol: TCR2EF33
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: TSOT-25 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tcr2ef33.step`	85 KB	You want the bare part, or you mark your own boards.
`tcr2ef33-etched.step`	1.7 MB	You want the part with `TCR2EF33` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 406 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: TOSHIBA LM CT datasheet (17 pp, sha256 7ba2a7e4e81e13f9, 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