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Contents

README

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TPS61040DDCR

Texas Instruments · LED Drivers · SOT-23-5

TPS61040DDCR from Texas Instruments, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 SW output Switch pin connected to internal N-channel power MOSFET drain; attach external inductor and Schottky diode to this pin; maximum voltage rating 30V.
2 GND power_in Ground reference.
3 FB input Feedback input pin for connecting external voltage divider to program output voltage up to 28V; input bias current 1μA typical.
4 EN input Enable control input; pull to ground to enter shutdown mode with quiescent current below 1μA; pin must not be left floating and must be terminated.
5 VIN power_in Power supply input; operating voltage range 1.8V to 6V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category LED Drivers
Pins 5

CAD (KiCad official)

  • Symbol: TPS61040DDCR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: tps61040ddcr-etched.step / tps61040ddcr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps61040ddcr.step / tps61040ddcr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (39 pp, sha256 d192004ca7a38ac4, retrieved 2026-10-01, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF