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PJ1117SQ-3.3
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
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownPJ1117SQ-3.3
PJSEMI · Linear Voltage Regulators (LDO) · SOT-89-3
PJ1117SQ-3.3 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/FB | power_in | Ground pin for the fixed-voltage versions and FB (ADJ) feedback pin for the adjustable version, where a bypass capacitor from FB to ground improves ripple rejection. |
| 2 | VOUT | power_out | Regulated output pin, rated at a maximum output current of 1A, with fixed outputs of 1.2V, 1.8V, 2.5V, 3.3V and 5V or adjustable output from 1.25V to 12V set by two external resistors. |
| 3 | VIN | power_in | Power input pin with a recommended maximum input voltage of 15V. |
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 Accuracy | ΔVOUT | -2 | 2 | % | 0≤IOUT≤1A, VIN=VOUT+2V | 7 | |
| Quiescent Current | IQ | 2 | 5 | mA | IOUT=0mA, VIN=12V | 7 | |
| Dropout Voltage | VDROP | 1.15 | 1.3 | V | IOUT=100mA | 7 | |
| Dropout Voltage | VDROP | 1.3 | 1.5 | V | IOUT=1A | 7 | |
| Line Regulation | ΔVLINE | 0.03 | 0.2 | %/V | IOUT=10mA, VOUT+1.5V≤VIN≤12V | 7 | |
| Load Regulation | ΔVLOAD | 36 | mV | 10mA≤IOUT≤1A, VIN=VOUT+1.5V | 7 | ||
| Recommended Maximum Input Voltage | VIN | 15 | V | 6 | |||
| Recommended Operating Junction Temperature | Topr | -40 | 85 | °C | 6 | ||
| Supply Voltage | VIN | 18 | V | 6 | |||
| Maximum Output Current | IOUT | 1 | A | 6 | |||
| Junction Temperature | TJ | 150 | °C | 6 | |||
| Storage Temperature | TSTG | -40 | 150 | °C | 6 | ||
| Thermal Resistance Junction-to-Case SOT-89 | RθJC | 45 | °C/W | 6 | |||
| Temperature coefficient | ΔV/ΔT | 100 | ppm | 7 |
CAD (KiCad official)
- Symbol:
PJ1117SQ-3.3 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
pj1117sq-3-3-etched.step/pj1117sq-3-3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pj1117sq-3-3.step/pj1117sq-3-3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PJSEMI datasheet (11 pp, sha256
d025f5768cbbd884, retrieved 2026-10-28, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).