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KIA78L05F-RTF

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

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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KIA78L05F-RTF

KEC Semicon · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

KIA78L05F-RTF from KEC Semicon, in a SOT-89-3. 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 5V output (4.8V min, 5.0V typ, 5.2V max at Tj=25°C) with up to 150mA maximum output current; use a 0.1µF output capacitor and do not apply more than 10V above the output voltage to this pin.
2 GND power_in Ground and case connection (SOT-89 tab) for the regulator, with the package rated at 500mW power dissipation.
3 INPUT power_in Unregulated input voltage, absolute maximum 35V for KIA78L05, with a 0.33µF input capacitor used in the test circuit.

Key specifications

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

CAD (KiCad official)

  • Symbol: KIA78L05F-RTF
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: kia78l05f-rtf-etched.step / kia78l05f-rtf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kia78l05f-rtf.step / kia78l05f-rtf.glb are the bare package body.

Provenance

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

  • Datasheet: KEC Semicon datasheet (15 pp, sha256 b3817aa781ca7c1e, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+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