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Contents

README

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TPS2105DBVR

Texas Instruments · Power Distribution Switches · SOT-23-5

TPS2105DBVR 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 EN input Active-low enable input for IN1-OUT switch; pull low to enable main supply path, pull high to enable auxiliary supply path; TTL and CMOS compatible, voltage 0 to 5.5 V.
2 GND power_in Ground connection.
3 IN2 input Auxiliary input voltage for p-channel MOSFET drain with 1.3 Ω on-resistance; operating range 0 to 5.5 V; require 0.22 µF bypass capacitor.
4 OUT output Power switch output, single output connected to both IN1 (250 mΩ NMOS) and IN2 (1.3 Ω PMOS) switches.
5 IN1 input Main input voltage for n-channel MOSFET drain with 250 mΩ on-resistance; operating range 0 to 5.5 V; require 0.22 µF bypass capacitor.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: TPS2105DBVR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: tps2105dbvr-etched.step / tps2105dbvr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps2105dbvr.step / tps2105dbvr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (21 pp, sha256 c4b824bed3429c17, retrieved 2026-09-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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