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78L12-150

Public Made by Adom

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UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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78L12-150

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

78L12-150 from UMW, 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 Vout power_out Regulated 12V output (11.88V to 12.12V at TJ=25°C, IO=40mA) with a maximum steady-state output current of 150mA.
2 GND power_in Common ground reference for the regulator; the datasheet gives no separate limit for this pin.
3 Vin power_in Unregulated input supply; the absolute maximum input voltage is 35V for VO=3.3 to 18V, which includes the 12V output, and the 78L12 is tested with VI=19V.

Key specifications

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

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Output voltage VO 11.88 12 12.12 V TJ=25°C 8
Input voltage (for VO=3.3~18V; applies to 12V variant) VI 35 V for VO=3.3~18V 2
High power dissipation PD 800 mW 2
Junction temperature range TOPR -40 105 °C 2
Storage temperature range TSTG -55 150 °C 2

CAD (KiCad official)

  • Symbol: 78L12-150
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: 78l12-150-etched.step / 78l12-150-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 78l12-150.step / 78l12-150.glb are the bare package body.

Provenance

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

  • Datasheet: UMW datasheet (17 pp, sha256 fe2f4e8f0d975d52, retrieved 2026-10-19, 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