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TPS61291DRVR

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by Ray

Texas Instruments DC-DC Converters, WSON-6-EP(2x2). Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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PCB Footprint

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Datasheet

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Contents

README

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TPS61291DRVR

Texas Instruments · DC-DC Converters · WSON-6-EP(2x2)

TPS61291DRVR from Texas Instruments, in a WSON-6-EP(2x2). 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 SW input Switch node of the boost converter. Connect the 3.3µH inductor between this pin and the input capacitor CIN. Absolute max voltage -0.3V to 7V.
2 VOUT power_out Boost converter output. Connect the output capacitor COUT (22µF typical) between this pin and GND close to the device. Provides regulated 3.3V/3.0V/2.5V in boost mode or VIN in bypass mode.
3 VIN power_in Input voltage supply pin for the boost converter. Operating range 0.9V to 5V (1.5V min at startup with 20mA load). Connect input capacitor CIN (10µF typical) between this pin and GND as close as possible to the device.
4 EN/BYP input Enable / bypass control pin. High level enables boost mode; low level disables the boost converter and enables bypass mode (VOUT = VIN). Must be actively terminated high or low; typically driven by the system MCU. VIH = 0.8*VIN (VIN<=1.5V) or 1.2V (VIN>1.5V).
5 VSEL input Output voltage selection pin, read once during startup and internally latched. Tie to GND for 3.3V, tie to VOUT for 3.0V, leave floating for 2.5V. Only used in boost mode.
6 GND power_in Ground pin of the device. Serves as the reference for all voltages.
7 EP passive Exposed thermal pad. Not electrically connected to the IC internally, but must be soldered to the PCB to achieve specified thermal performance (RθJA = 71.2°C/W). Connect this pad to the GND pin and use it as a central GND plane.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package WSON-6-EP(2x2)
Category PMIC
Pins 7

Ordering variants

Same part, different packaging or reel option.

  • TPS61291DRVR
  • TPS61291DRVRDRVT

CAD (KiCad official)

  • Symbol: TPS61291DRVR
  • Footprint: Package_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm
  • 3D model: WSON-6-EP(2x2) (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
tps61291drvr.step 78 KB You want the bare part, or you mark your own boards.
tps61291drvr-etched.step 2.1 MB You want the part with TPS61291DRVR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 516 faces against 50 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 (26 pp, sha256 1bf0fcb06354261b, 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