RT9069-33GB from Richtek Tech, 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	VCC	power_in	Supply voltage input. Operating range 3.5V to 36V (absolute max −0.3V to 40V). Bypass with a low-ESR ceramic capacitor close to the pin.
2	GND	power_in	Device ground return. Provides the reference for VCC, EN, and VOUT.
3	NC	unconnected	No internal connection. Leave floating or tie to GND per PCB preference.
4	EN	input	Enable control input. Logic-high (VIH ≥ 1.6V typ threshold, min for high state) enables regulation; logic-low (VIL ≤ 0.6V) disables output with zero quiescent current. Absolute max −0.3V to 40V, typical EN input current 0.1µA at 36V.
5	VOUT	power_out	Regulated output of the LDO. Fixed 3.3V for the -33 option, up to 200mA. Requires ≥1µF effective ceramic (or tantalum) output capacitor for stability. Absolute max −0.3V to 6V for -25/-30/-33/-50 options.

Key specifications

Parameter	Value
Manufacturer	Richtek Tech
Package	SOT-23-5
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

RT9069-33GBB
RT9069-33GBSP
RT9069-33GBX5
RT9069-33GBQU

CAD (KiCad official)

Symbol: RT9069-33GB
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
`rt9069-33gb.step`	85 KB	You want the bare part, or you mark your own boards.
`rt9069-33gb-etched.step`	2.5 MB	You want the part with `RT9069-33GB` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 589 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: Richtek Tech datasheet (15 pp, sha256 d34d047a46b2071f, 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