component

TPMAX40203AUK+T

Public Unreviewed

by Ray

TECH PUBLIC Power Distribution Switches, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpower management (pmic)tpmax40203auk+t
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Contents

README

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TPMAX40203AUK+T

TECH PUBLIC · Power Distribution Switches · SOT-23-5

TPMAX40203AUK+T from TECH PUBLIC, in a SOT-23-5. 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 VDD power_in Power supply input. Operating range 1.5 V to 5.5 V; absolute max 6 V. Also serves as the switch input (VIN) feeding the P-channel MOSFET to OUT.
2 GND power_in Device ground reference for control logic and output discharge return.
3 EN input Enable input, active high. VIH ≥ 1.2 V, VIL ≤ 0.4 V (VIN = 1.5-5.5 V). Absolute max 6 V. Internal ~10 MΩ pull-down to GND holds the switch off when floating; EN low activates the ~85Ω quick output discharge.
4 NC unconnected No connect. Internally not connected; leave floating or tie to GND/VDD per board convenience.
5 OUT power_out Switched output voltage pin. Delivers up to 2 A continuous with typical RON of 32 mΩ at VIN = 5.5 V. Discharged through ~85Ω to GND when EN is low. Reverse current blocking engages when VOUT exceeds VIN by ~25 mV.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • TPMAX40203AUK+T

CAD (KiCad official)

  • Symbol: TPMAX40203AUK+T
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (6 pp, sha256 3420b88b31fec35e, 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