component

PJ75AL36SQ

Public Made by Adom

by adom

PJSEMI 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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PJ75AL36SQ

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

PJ75AL36SQ from PJSEMI, 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 GND power_in Ground pin; input and output capacitor ground connections must return to this pin using as wide and as short a copper trace as is practical.
2 VIN power_in Power input rated up to 36 V (absolute maximum supply voltage -0.3 V to +36 V), with a 10 µF ceramic input capacitor placed as close to the device as possible.
3 VOUT power_out Regulated fixed output from 2.8 V to 5.0 V with output current tap L (100 mA), requiring a minimum 10 µF ceramic output capacitor (X7R or X5R) placed close to VOUT and GND.

Key specifications

Parameter Value
Manufacturer PJSEMI
Package SOT-89-3
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
Input Voltage VIN 36 V 4
Output Voltage Accuracy ΔVOUT -2 2 % IOUT=10mA 4
Output Current IOUT 70 100 mA VIN=VOUT+2V 4
Quiescent Current IQ 2.5 3 μA IOUT=0mA 4
Dropout Voltage (3.0V<VOUT≤5.0V row, applies to 3.6V) VDROP 25 55 mV 3.0V<VOUT≤5.0V, IOUT=1mA 4
Line Regulation ΔVLINE 0.2 %/V VIN=VOUT+2 to 30V, IOUT=1mA 4
Load Regulation ΔVLOAD 25 60 mV VIN=VOUT+2V, 1mA<IOUT<50mA 4
Thermal Shutdown Temperature ∆VOUT/VOUT ×∆TA 100 °C VIN=VOUT+2V, IOUT=10mA, -40°C≤TA≤85°C 4
Supply Voltage VIN -0.3 36 V 3
Power Dissipation (SOT-89) PD 600 mW SOT-89 package 3
Thermal Resistance, Junction-to-Ambient (SOT-89) RθJA 180 °C/W SOT-89 3
Operating Ambient Temperature TA -40 85 °C 3
Storage Temperature Range TSTG -50 125 °C 3
Maximum Operating Junction Temperature TJ(MAX) 125 ℃ Thermal Considerations section, operation 5

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper must be back to the PJ75A Series ground pin using as wide and as short of a copper trace as is 5

CAD (KiCad official)

  • Symbol: PJ75AL36SQ
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: pj75al36sq-etched.step / pj75al36sq-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pj75al36sq.step / pj75al36sq.glb are the bare package body.

Provenance

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

  • Datasheet: PJSEMI datasheet (9 pp, sha256 ec9ac50694a28a8f, retrieved 2026-10-18, 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