component

PJ54M33SC

Public Made by Adom

by adom

PJSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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PJ54M33SC

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

PJ54M33SC 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; the datasheet requires a wide copper trace for both VIN and GND and places the output capacitor as close as possible to VOUT and GND.
2 VOUT power_out Regulated output voltage pin; the datasheet recommends a minimum 10µF ceramic output capacitor (X7R or X5R), and the VOUT to GND absolute maximum is -0.3 to +6 V.
3 VIN power_in Power input pin with a recommended supply range of 3 to 45 V; the VIN to GND absolute maximum is -0.3 to +55 V.

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
Input Voltage VIN 3 45 V 8
Output Voltage Accuracy ∆VOUT -2 2 % VIN=12V, IOUT=10mA 8
Maximum Output Current IOUT_Max 300 350 mA 8
EN Input Threshold Logic Low VIL 0.4 V 8
EN Input Threshold Logic High VIH 1 V 8
Supply Voltage 3 45 V 7
Maximum Output Current 350 mA 7
Operating Ambient Temperature -40 85 °C 7
VIN to GND Voltage -0.3 55 V 7
VOUT to GND Voltage -0.3 6 V 7
VOUT to VIN Voltage -55 0.3 V 7
EN to GND Voltage -0.3 55 V 7
Power Dissipation 500 mW SOT-23-3 package 7
Junction Temperature 150 °C 7
Storage Temperature Range -40 150 °C 7
Thermal Resistance, Junction-to-Ambient 250 °C/W SOT-23-3 package 7

CAD (KiCad official)

  • Symbol: PJ54M33SC
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: pj54m33sc-etched.step / pj54m33sc-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pj54m33sc.step / pj54m33sc.glb are the bare package body.

Provenance

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

  • Datasheet: PJSEMI datasheet (25 pp, sha256 494f5a1224bd9a3b, 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