TPS54202DDCR from Texas Instruments, in a SOT-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	GND	power_in	Ground pin. Source terminal of the low-side power NFET as well as the ground terminal for controller circuit. Connect sensitive VFB return to this GND at a single point.
2	SW	output	Switch node connection between the high-side NFET and low-side NFET. Connect the external inductor here. Rated -0.3 V to 30 V (abs max).
3	VIN	power_in	Input voltage supply pin (4.5 V to 28 V operating; 30 V abs max). Drain terminal of the high-side power NFET. Bypass with a local ceramic capacitor to GND.
4	FB	input	Converter feedback input to the error amplifier. Connect to the output voltage through a resistor divider; internal reference VFB = 0.596 V (typ).
5	EN	input	Enable input. Float (leave open) to enable the converter; pull to GND to disable. Rising threshold 1.21 V (typ), falling 1.19 V (typ); abs max 7 V.
6	BOOT	power_out	Bootstrap supply for the high-side NFET gate drive circuit. Connect a 0.1-µF ceramic capacitor between BOOT and SW. Abs max BOOT-SW = 7 V.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

TPS54202DDCR

CAD (KiCad official)

Symbol: TPS54202DDCR
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
`tps54202ddcr.step`	97 KB	You want the bare part, or you mark your own boards.
`tps54202ddcr-etched.step`	2.4 MB	You want the part with `TPS54202DDCR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 576 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 (28 pp, sha256 a7f9b762dcd5e18e, 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