LMR14006XDDCR from Texas Instruments, 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	CB	passive	Bootstrap capacitor pin providing gate-bias voltage for the internal high-side SW FET. Connect a Cboot capacitor (typically a small ceramic) between CB and SW. Operating range CB to SW is -0.3 V to 6 V.
2	GND	power_in	Ground connection. Device analog and power ground return.
3	FB	input	Feedback pin. Set feedback voltage divider ratio with VOUT = VFB × (1 + R1/R2). Internal reference (VFB) is typically 0.765 V (0.747 V to 0.782 V).
4	/SHDN	input	Enable/disable input pin (high-voltage tolerant, 0 V to 40 V). Has an internal pull-up current source: float to enable, pull below ~1.2 V to disable. Rising threshold ~1.25 V. Can be used with an external divider to set input UVLO.
5	VIN	power_in	Power input voltage pin. Supplies internal circuitry and is the drain node of the internal high-side MOSFET. Operating range 4 V to 40 V; absolute max 45 V.
6	SW	output	Switch node. Connect to the external inductor, catch/Schottky diode, and the bootstrap (Cboot) capacitor. Operating range -1 V to 40 V (transient -2 V to 45 V for <30 ns).

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	TSOT-23-6
Category	PMIC
Pins	6

Ordering variants

Same part, different packaging or reel option.

LMR14006XDDCR
LMR14006XDDCRDDCT

CAD (KiCad official)

Symbol: LMR14006XDDCR
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
`lmr14006xddcr.step`	97 KB	You want the bare part, or you mark your own boards.
`lmr14006xddcr-etched.step`	2.3 MB	You want the part with `LMR14006XDDCR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 581 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 (25 pp, sha256 338f9e367af06584, 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