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Contents

README

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PJ9350L18SC

PJSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3

PJ9350L18SC from PJSEMI, in a SOT-23-3. 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 GND power_in Ground reference pin for the regulator (page 2 lists it as GND, Ground).
2 VOUT power_out Regulated output voltage; the fixed output is 1.8V for the PJ9350L18SC, and the datasheet recommends at least a 1uF capacitor from VOUT to ground for stability, with a maximum output current of 300mA.
3 VIN power_in Power input; the supply range is 2.5V to 6.5V, and VIN must stay at least the dropout voltage above VOUT for proper regulation.

Key specifications

Parameter Value
Manufacturer PJSEMI
Package SOT-23-3
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 Accuracy ΔVOUT -2 2 % VOUT ≥1.8V, IOUT=1mA 8
Line Regulation ΔVLINE 0.01 0.15 %/V VIN=2.7~5.5V, IOUT=1mA 8
Load Regulation ΔVLOAD 40 70 mV VOUT≤1.8V, IOUT=1~200mA 8
Standby Current IStandby 1 μA VEN=0 8
EN Logic High Voltage VENH 1.2 V VIN=5.5V, IOUT=1mA 8
EN Logic Low Voltage VENlL 0.4 V VIN=5.5V, VOUT=0V 8
EN Input Current IEN 1 μA VEN= 0~5.5V 8
Input Voltage VIN 2.5 6.5 V 8
Supply Voltage VIN 2.5 6.5 V 7
Maximum Output Current 300 mA 7
Operating Ambient Temperature TA -40 85 °C 7
Maximum Input Voltage VIN -0.3 8 V 7
Output Current IOUT 400 mA 7
Power Dissipation PD 450 mW SOT-23-3 7
Operating Ambient Temperature TA -40 85 °C 7
Junction Temperature TJ -40 125 °C 7
Storage Temperature Range TSTG -55 150 °C 7
ESD Voltage HBM 2 KV HBM 7
Lead Temperature 260 °C 10S 7
Thermal Resistance, Junction-to-Ambient RθJA 220 °C/W SOT-23-3 7

CAD (KiCad official)

  • Symbol: PJ9350L18SC
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: pj9350l18sc-etched.step / pj9350l18sc-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pj9350l18sc.step / pj9350l18sc.glb are the bare package body.

Provenance

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

  • Datasheet: PJSEMI datasheet (18 pp, sha256 07d6b42aa3d8f2df, retrieved 2026-10-17, 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