MT2492 from Aerosemi, in a SOT-23-6. Pinout and pin descriptions extracted from the datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	BS	passive	Bootstrap pin for the high-side gate driver. A capacitor (typ. 22nF) connected between SW and BS forms a floating supply across the high-side switch driver.
2	GND	power_in	Ground return for the device. Should be connected to a large copper area for thermal dissipation and to keep the switching current loop tight.
3	FB	input	Feedback input for the adjustable output voltage. Connect to the center point of an external resistor divider from VOUT; the internal reference is 0.6V (typical). R1 ≈ 100kΩ is recommended for optimal transient response.
4	EN	input	Enable input. Drive logic-high to enable the IC; drive logic-low (or tie to GND) to disable the IC and enter micro-power shutdown mode (~1µA). Absolute max 6V.
5	VIN	power_in	Power supply input, 4.5V to 16V operating range (17V abs max). Bypass with a low-ESR ceramic capacitor (e.g. 22µF) placed close to the pin.
6	SW	power_out	Switching node, connected to the drains of the internal high-side and low-side MOSFETs. Connect the external inductor between SW and VOUT, and the bootstrap capacitor between SW and BS. Rated -0.3V to (VIN+0.5V).

Key specifications

Parameter	Value
Manufacturer	Aerosemi
Package	SOT-23-6
Category	PMIC
Pins	6

CAD (KiCad official)

Symbol: MT2492
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`mt2492.step`	97 KB	You want the bare part, or you mark your own boards.
`mt2492-etched.step`	1.3 MB	You want the part with `MT2492` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 323 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: Aerosemi datasheet (9 pp, sha256 e0911b977bb50a63, 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