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Ray Publish 0.1.0 8518135 9d ago

NJM78L09UA-TE1

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

NJM78L09UA-TE1 from JRC, 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 OUT power_out Regulated 9 V output with 9.0 V typical and 8.55 V to 9.45 V limits at VIN=15 V and IO=40 mA, guaranteed for 100 mA output current when adequate heat sinking is provided.
2 GND power_in Common ground return for the regulator, to which the CIN and CO capacitors should be connected by the shortest path.
3 IN power_in Unregulated input with an absolute maximum of 30 V for the 78L09A, and an input capacitor of at least 0.33 µF should be connected between IN and GND as close as possible.

Key specifications

Parameter Value
Manufacturer JRC
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 8.55 9 9.45 V VIN=15V, IO=40mA 4
Line Regulation 1 ΔVO-VIN1 250 mV VIN=11.5V to 23V, IO=40mA 4
Line Regulation 2 ΔVO-VIN2 200 mV VIN=12V to 23V, IO=40mA 4
Load Regulation 1 ΔVO-IO1 50 mV VIN=15V, IO=1 to 40mA 4
Load Regulation 2 ΔVO-IO2 100 mV VIN=15V, IO=1 to 100mA 4
Quiescent Current IQ 2.1 6 mA VIN=15V, IO=0mA 4
Ripple Rejection RR 38 65 dB 12V< VIN <21V, IO=40mA, ein=1VP-P, f=120Hz 4
Input Voltage (78L02A to 78L09A) VIN 30 V 78L02A to 78L09A 2
Power Dissipation PD 350 mW SOT-89 package 2
Operating Temperature Range Topr -40 85 °C 2
Storage Temperature Range Tstg -40 150 °C 2

CAD (KiCad official)

  • Symbol: NJM78L09UA-TE1
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: njm78l09ua-te1-etched.step / njm78l09ua-te1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); njm78l09ua-te1.step / njm78l09ua-te1.glb are the bare package body.

Provenance

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

  • Datasheet: JRC datasheet (9 pp, sha256 1886f25e0129aa8d, retrieved 2026-10-29, 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