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Contents

README

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TPAP2112K-3.3TRG1

TECH PUBLIC · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

TPAP2112K-3.3TRG1 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 VIN power_in Regulator power input. Operating range 1.2V to 5.5V; absolute max -0.3V to 6.5V referenced to GND. Bypass to GND with 1µF to 10µF ceramic or tantalum capacitor close to the pin.
2 GND power_in Ground reference for the regulator. Common return for VIN bypass, VOUT bypass, and EN logic.
3 EN input Enable input. Logic high (VIH ≥ 2V) turns the regulator on; logic low (VIL ≤ 0.6V) puts the device in shutdown (~10nA typical). EN input current ~10nA at VEN=5V; absolute max -0.3V to 6V. Do not leave floating.
4 NC unconnected No internal connection. Leave floating or tie to GND per layout preference.
5 VOUT power_out Regulated 3.3V output, up to 600mA. ±2% accuracy. Requires 1µF to 10µF ceramic or tantalum output capacitor for stability. Absolute max -0.3V to 6V to GND; -6V to 0.3V referenced to VIN. Internal ~100Ω discharge resistor active when EN=0V.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • TPAP2112K-3.3TRG1

CAD (KiCad official)

  • Symbol: TPAP2112K-3.3TRG1
  • 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 (9 pp, sha256 f812f394a492b5c8, 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