RT6252BHGJ6F from Richtek Tech, in a TSOT-23-6. 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	GND	power_in	Power ground return for the IC and the low-side MOSFET source.
2	SW	power_out	Switch node between the internal high-side and low-side (synchronous rectifier) MOSFETs. Connect to the external inductor and to the bootstrap capacitor's low side.
3	VIN	power_in	Power input, 4.5V to 17V. Bypass directly to GND with an MLCC ≥ 20µF placed close to the pin.
4	FB	input	Feedback voltage input. Connect to the midpoint of the external resistor divider from VOUT to GND. Regulated to VFB ≈ 0.765V (±1%).
5	EN	input	Enable control input. Logic high enables the converter; tie to GND to disable. An internal REN_DN pulldown allows the pin to float to a shutdown state.
6	BOOT	power_in	Bootstrap capacitor node for the high-side gate driver. Connect a 0.1µF ceramic capacitor from BOOT to SW.

Key specifications

Parameter	Value
Manufacturer	Richtek Tech
Package	TSOT-23-6
Category	PMIC
Pins	6

Ordering variants

Same part, different packaging or reel option.

RT6252BHGJ6F
RT6252BHGJ6FH6F
RT6252BHGJ6FHGH6F

CAD (KiCad official)

Symbol: RT6252BHGJ6F
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: TSOT-23-6 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`rt6252bhgj6f.step`	97 KB	You want the bare part, or you mark your own boards.
`rt6252bhgj6f-etched.step`	2.5 MB	You want the part with `RT6252BHGJ6F` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 590 faces against 117 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 (31 pp, sha256 b3073e6d0c76ec40, 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