FP6276BXR-G1 from Advanced Analog Technology, in a SOP-8-EP. 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	LX	power_out	Power switch output. Internal drain of the low-side NMOS and source of the high-side PMOS; connect to the boost inductor. Absolute max 6V.
2	LX	power_out	Power switch output. Second LX pin, tied internally to pin 1. Connect to the boost inductor switching node.
3	VIN	power_in	IC power supply input. Operating range 2.4V-4.5V (abs max 6V). Decouple locally to GND.
4	EN	input	Enable control, active high. VEN >= 0.96V enables the converter; VEN <= 0.6V shuts it down (shutdown current <1μA). Abs max 6V.
5	GND	power_in	IC signal ground. Reference for the internal analog circuitry. Must be tied to the exposed pad (PGND) at the device.
6	FB	input	Error amplifier inverting input. Connect to the mid-point of the VOUT feedback divider; regulated to VREF = 0.6V (±2%). Abs max 6V.
7	OC	input	Adjustable current-limit programming pin (floating available). A resistor to GND sets the internal switch current limit (default typ. 6A); leave floating to use the internal default. Abs max 6V.
8	VO	power_in	Output voltage sense pin. Connect to the boost output rail; used internally to power the high-side driver bulk-well switch via a VO/VIN MUX. Abs max 6V.
EP	PGND	power_in	Exposed thermal pad and IC power ground. Must be soldered to the PCB ground plane and connected to GND (pin 5) for proper operation and heat dissipation.

Key specifications

Parameter	Value
Manufacturer	Advanced Analog Technology
Package	SOP-8-EP
Category	PMIC
Pins	9

Ordering variants

Same part, different packaging or reel option.

FP6276BXR-G1

CAD (KiCad official)

Symbol: FP6276BXR-G1
Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
3D model: SOP-8-EP (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`fp6276bxr-g1.step`	193 KB	You want the bare part, or you mark your own boards.
`fp6276bxr-g1-etched.step`	2.0 MB	You want the part with `FP6276BXR-G1` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 507 faces against 63 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: Advanced Analog Technology datasheet (12 pp, sha256 f46290e35f85966e, 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