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PJ78S05SQ

Public Made by Adom

by adom

PJSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)pj78s05sqfactory-2.0.0extractor-text
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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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PJ78S05SQ

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

PJ78S05SQ from PJSEMI, 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 VOUT power_out Regulated 5 V output that delivers up to 200 mA, with internal thermal overload protection and short-circuit current limiting.
2 GND power_in Common ground reference pin for the regulator.
3 VIN power_in Unregulated input supply pin, rated up to 35 V (absolute maximum input voltage 35 V).

Key specifications

Parameter Value
Manufacturer PJSEMI
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
Input Voltage VI 35 V 1
Output Current IO 200 mA 1
Maximum Power Dissipation PD 500 mW 1
Junction Temperature TJ 150 °C 1
Operating Temperature Range TOPR -40 125 °C 1
Storage Temperature Range TSTG -55 150 °C 1
Output Voltage VO 4.8 5 5.2 V TJ=25°C 2
Output Voltage VO 4.75 5 5.25 V IO=1mA to 40mA, VI=7V to 20V 2
Line Regulation ΔVO 8 150 mV VI=7V to 20V, TJ=25°C 2
Line Regulation ΔVO 6 100 mV VI=8V to 20V, TJ=25°C 2
Load Regulation ΔVO 11 60 mV IO=1mA to 100mA, TJ=25°C 2
Load Regulation ΔVO 5 30 mV IO=1mA to 40 mA, TJ=25°C 2
Ripple Rejection RR 40 49 dB VI=8V to 20V, f=120Hz, TJ=25°C 2
Quiescent Current IQ 2 5.5 mA 2
Quiescent Current Change ΔIQ 1.5 mA VI=8V to 20V 2
Quiescent Current Change ΔIQ 0.1 mA IO=1mA to 40mA 2
Thermal Resistance Junction-Air RθJA 250 °C/W 1

CAD (KiCad official)

  • Symbol: PJ78S05SQ
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: pj78s05sq-etched.step / pj78s05sq-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pj78s05sq.step / pj78s05sq.glb are the bare package body.

Provenance

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

  • Datasheet: PJSEMI datasheet (4 pp, sha256 54f9f9ae0dc20080, 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