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UA78L09ACDR

Public Made by Adom

by adom

Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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UA78L09ACDR

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8

UA78L09ACDR from Texas Instruments, in a SOIC-8. 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 output Regulated output pin; place the recommended 0.1 µF output capacitor as close to the OUT and GND pins as possible.
2 COMMON power_in Ground pin (common/GND reference for the regulator).
3 COMMON power_in Ground pin (common/GND reference for the regulator).
4 NC unconnected No connect pin, not connected internally; connect to ground for best thermal performance or leave floating.
5 NC unconnected No connect pin, not connected internally; connect to ground for best thermal performance or leave floating.
6 COMMON power_in Ground pin (common/GND reference for the regulator).
7 COMMON power_in Ground pin (common/GND reference for the regulator).
8 INPUT input Unregulated input pin; use the recommended 0.33 µF input capacitor from the Recommended Operating Conditions table, placed as close to the IN and GND pins as possible.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
Category Power Management (PMIC)
Pins 8

CAD (KiCad official)

  • Symbol: UA78L09ACDR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ua78l09acdr-etched.step / ua78l09acdr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ua78l09acdr.step / ua78l09acdr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (47 pp, sha256 223d628010f1d8e3, retrieved 2026-10-10, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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