LM66100DCKR from Texas Instruments, in a SC-70-6. 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	VIN	power_in	Device input supply. Operating range 1.5 V to 5.5 V (absolute max −6 V to 6 V). Source terminal of the internal P-channel MOSFET; input current up to 1.5 A continuous.
2	GND	power_in	Device ground reference.
3	~{CE}	input	Active-low chip enable input (comparator). Voltage range 0 V to 5.5 V. Can be tied to VOUT for automatic reverse-current protection (ORing). Do not leave floating. Turn-ON threshold VCE−VIN ≈ −150 mV, turn-OFF ≈ +35 mV.
4	NC	unconnected	Not internally connected. May be tied to GND or left floating.
5	ST	output	Active-low open-drain status output. Pulled low when the chip is disabled (MOSFET off); Hi-Z when enabled. Voltage range 0 V to 5.5 V; VOL ≈ 0.1 V at IST = 1 mA. Connect to GND if not required.
6	VOUT	power_out	Device output. Drain of the internal P-channel MOSFET. Output voltage range 1 V to 5.5 V; supports up to 1.5 A continuous output current.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SC-70-6
Category	PMIC
Pins	6

Ordering variants

Same part, different packaging or reel option.

LM66100DCKR
LM66100DCKRDCKT

CAD (KiCad official)

Symbol: LM66100DCKR
Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
3D model: SC-70-6 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`lm66100dckr.step`	99 KB	You want the bare part, or you mark your own boards.
`lm66100dckr-etched.step`	2.2 MB	You want the part with `LM66100DCKR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 540 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: Texas Instruments datasheet (23 pp, sha256 83c17370a97b85ec, 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