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Contents

README

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TP78L33T3

TECH PUBLIC · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89

TP78L33T3 from TECH PUBLIC, in a SOT-89. 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 VO power_out Regulated 3.3 V output (3.168 V min, 3.432 V max at Tj=25°C), with a 0.1 µF output capacitor shown in the application circuit; maximum output current is 100 mA.
2 GND power_in Ground reference for the regulator, common to input and output capacitors in the application circuit.
3 VI power_in Unregulated input voltage, absolute maximum 30 V, with a 0.33 µF input capacitor shown in the application circuit.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-89
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: TP78L33T3
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: tp78l33t3-etched.step / tp78l33t3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tp78l33t3.step / tp78l33t3.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (3 pp, sha256 7477485653f5c1ea, retrieved 2026-10-20, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (vision), consensus claude-opus-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