XC6802A42XMR-G from Torex Semicon, in a SOT-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	/CHG	output	Charge status output pin. Open-drain (weak/strong pull-down + high-Z states) intended to drive an external status LED. Strong pull-down current 10mA (typ) at VBAT=4.0V, weak pull-down 20µA (typ) at VBAT=4.3V. Absolute-max pin voltage -0.3 to +6.5V.
2	VSS	power_in	Device ground reference. All pin voltages are referenced to VSS.
3	BAT	power_out	Charge current output pin - connects to the positive terminal of the Li-ion / Li-Po cell. Regulated to the 4.2V ±0.7% float voltage in CV mode; supplies up to 800mA (SOT-25). Absolute-max pin voltage -0.3 to +6.5V, IBAT(max) 900mA.
4	VIN	power_in	Input supply pin. Operating range 4.25V to 6.0V; absolute-max -0.3 to +6.5V. UVLO releases at ~3.8V (typ). Decouple with 1µF ceramic to VSS as shown in the typical application.
5	ISEN	input	Charge current setup / shutdown pin. A resistor RSEN to VSS programs IBAT = (VISEN/RSEN) × 1000 with VISEN ≈ 1.0V (typ). Driving ISEN High (1.4V ≤ VSEN ≤ VIN) or leaving it Open forces Shutdown Mode. Absolute-max -0.3V to VIN+0.3V (or +6.5V, whichever is lower).

Key specifications

Parameter	Value
Manufacturer	Torex Semicon
Package	SOT-25
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

XC6802A42XMR-G
XC6802A42XMR-GPR
XC6802A42XMR-GPR-G
XC6802A42XMR-GER
XC6802A42XMR-GER-G
XC6802A42XMR-G4R-G

CAD (KiCad official)

Symbol: XC6802A42XMR-G
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-25 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`xc6802a42xmr-g.step`	85 KB	You want the bare part, or you mark your own boards.
`xc6802a42xmr-g-etched.step`	2.6 MB	You want the part with `XC6802A42XMR-G` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 627 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: Torex Semicon datasheet (21 pp, sha256 8c74af77a162dbe8, 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