TPS54332DDAR from Texas Instruments, 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	BOOT	passive	Bootstrap capacitor node for the high-side MOSFET gate driver. A 0.1-µF capacitor is required between BOOT and PH; if the voltage on this capacitor falls below the minimum requirement, the high-side MOSFET is forced to switch off until the capacitor is refreshed. Abs-max BOOT-PH = 8 V.
2	VIN	power_in	Input supply voltage, 3.5 V to 28 V. Connect input decoupling capacitors close to this pin.
3	EN	input	Enable pin. Pull below 1.25 V to disable; float to enable. A two-resistor divider on this pin programs the input undervoltage lockout threshold. Abs-max 6 V.
4	SS	input	Slow-start pin. An external capacitor connected from this pin to GND sets the output voltage rise time and limits inrush current at startup.
5	VSENSE	input	Inverting input of the gm error amplifier. Connect a resistor divider from VOUT to this pin to program the output voltage (internal reference 0.8 V).
6	COMP	output	Error amplifier output and input to the PWM comparator. Connect the loop frequency compensation network (typically a series R-C to GND) to this pin.
7	GND	power_in	Device ground. Must be connected to the exposed PowerPAD (pin 9) for proper operation.
8	PH	output	Switch node - source of the internal high-side power MOSFET. Connect to the output inductor and the cathode of the external catch diode. Rated for up to 9.25 A source/sink current.
9	PowerPAD	power_in	Exposed thermal pad on the underside of the package. Must be soldered to the PCB ground plane and connected to the GND pin (pin 7) for proper electrical operation and heat dissipation.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOP-8-EP
Category	PMIC
Pins	9

Ordering variants

Same part, different packaging or reel option.

TPS54332DDAR

CAD (KiCad official)

Symbol: TPS54332DDAR
Footprint: Package_SO:TI_SO-PowerPAD-8
3D model: SOP-8-EP (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tps54332ddar.step`	123 KB	You want the bare part, or you mark your own boards.
`tps54332ddar-etched.step`	2.6 MB	You want the part with `TPS54332DDAR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 631 faces against 147 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 (34 pp, sha256 b2d295562b641a08, 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