component
PJ73AL50SQ
Public Made by Adomby adom
PJSEMI Linear Voltage Regulators (LDO), SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownPJ73AL50SQ
PJSEMI · Linear Voltage Regulators (LDO) · SOT-89-3
PJ73AL50SQ 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 reference for the regulator. |
| 2 | VIN | power_in | Supply input; rated up to 20V operating (absolute maximum -0.3 to +22V). |
| 3 | VOUT | power_out | Regulated 5.0V output (4.90 to 5.10V) delivering at least 300mA, with 400mA typical short-circuit current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PJSEMI |
| Package | SOT-89-3 |
| Category | Power Management ICs |
| 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 | VOUT | 4.9 | 5 | 5.1 | V | VIN=VOUT+2.0V, IOUT=10mA | 7 |
| Output current | IOUT | 300 | mA | VIN=VOUT+2.0V | 7 | ||
| Load regulation | ΔVOUT | 37 | 100 | mV | VIN=VOUT+2.0V, 1mA≤IOUT≤300mA | 7 | |
| Voltage drop | VDIF | 150 | 300 | mV | IOUT=100mA, ΔVOUT=2% | 7 | |
| Quiescent current | IQ | 1.5 | 3 | μA | No Load | 7 | |
| Line regulation | ΔVOUT / VOUT×ΔVIN | 0.2 | %/V | VOUT+1.0V≤VIN≤20V, IOUT=1mA | 7 | ||
| Input voltage | VIN | 20 | V | 7 | |||
| Output voltage tolerance | -2 | 2 | % | 1 | |||
| Temperature coefficient | ΔVOUT /VOUT×ΔTA | 100 | ppm/℃ | VIN=VOUT+2.0V, IOUT=10mA, -40℃≤TA≤85℃ | 7 | ||
| Short current | IShort | 400 | mA | VOUT=0V | 7 | ||
| Supply voltage | VIN | -0.3 | 22 | V | Absolute maximum rating at 25℃ ambient | 2 | |
| Operating temperature range | TA | -40 | 85 | ℃ | 2 | ||
| Storage temperature range | TSTG | -50 | 125 | ℃ | 2 | ||
| Junction-to-ambient thermal resistance | RθJA | 200 | ℃/W | 2 | |||
| Power consumption | PD | 500 | mW | 2 |
CAD (KiCad official)
- Symbol:
PJ73AL50SQ - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
pj73al50sq-etched.step/pj73al50sq-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pj73al50sq.step/pj73al50sq.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PJSEMI datasheet (11 pp, sha256
ebc13be52d46a9e4, retrieved 2026-11-05, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).