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TP181C33S5-A

Public Made by Adom

by adom

TECH PUBLIC Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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TP181C33S5-A

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

TP181C33S5-A 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 Power input. Accepts up to 18V absolute maximum. Bypass with a 1µF ceramic capacitor to GND close to the pin.
2 GND power_in Ground reference (0V) for the regulator.
3 CE input Chip Enable input. Drive above VCEH (min 1.3V) to enable the regulator; drive below VCEL (max 0.7V) to disable. When CE=0 an auto-discharge resistor (~500Ω) pulls VOUT to GND.
4 NC unconnected No internal connection. Leave floating or tie to GND.
5 VOUT power_out Regulated 3.3V output (3.234V min / 3.366V max at IOUT=30mA). Rated to 300mA continuous. Requires a 1µF ceramic output capacitor to GND for stability.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • TP181C33S5-A
  • TP181C33S5-AT3
  • TP181C33S5-AS3L
  • TP181C33S5-AD6

CAD (KiCad official)

  • Symbol: TP181C33S5-A
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: tp181c33s5-a-etched.step / tp181c33s5-a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tp181c33s5-a.step / tp181c33s5-a.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (7 pp, sha256 98010023ceca7a18, 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