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Contents

README

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78L08MG-AB3-R

UTC Unisonic Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89

78L08MG-AB3-R from UTC Unisonic Tech, 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 OUTPUT power_out Regulated fixed output voltage (8V for the 78L08 variant), supplying up to 200mA output current.
2 GND power_in Ground reference pin for the regulator; the datasheet gives no further electrical limit for this pin.
3 INPUT power_in Unregulated supply input, rated at 30V maximum for 5V to 9V output variants (the 8V part) and 35V maximum for 12V to 24V variants.

Key specifications

Parameter Value
Manufacturer UTC Unisonic Tech
Package SOT-89
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: 78L08MG-AB3-R
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: 78l08mg-ab3-r-etched.step / 78l08mg-ab3-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 78l08mg-ab3-r.step / 78l08mg-ab3-r.glb are the bare package body.

Provenance

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

  • Datasheet: UTC Unisonic Tech datasheet (9 pp, sha256 1ad0cbe1ecc1289c, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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