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Contents

README

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TPSPX3819M5-L-1-8

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

TPSPX3819M5-L-1-8 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 Input supply voltage. Operating range 2.0V to 20V (absolute max 24V to GND). Bypass with a 1uF ceramic capacitor to GND close to the pin.
2 GND power_in Device ground reference. Common return for input, output, and enable signals.
3 EN input Enable control input. Drive above VIH (typ. 1.1V rising) to enable the regulator; drive below VIL (0.4V max) to shut down (ISD ~0.01uA). Input current ~10nA at VEN=27V; do not float.
4 NC unconnected No internal connection. Leave floating or tie to GND for mechanical stability.
5 VOUT power_out Regulated output of the LDO. Fixed 1.8V (+/-2%) at up to 500mA. Requires a 1uF ceramic or tantalum output capacitor to GND for stability. Current limit typ. 500mA; thermal shutdown at ~160C.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • TPSPX3819M5-L-1-8

The extractor listed these alongside TPSPX3819M5-L-1-8, but they are different parts with different electrical characteristics. Do not order them as substitutes.

  • TPSPX3819M5-L-2-5
  • TPSPX3819M5-L-3-0
  • TPSPX3819M5-L-3-3
  • TPSPX3819M5-L-5-0

CAD (KiCad official)

  • Symbol: TPSPX3819M5-L-1-8
  • 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 (8 pp, sha256 e0f5fbf08183ff1d, 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