component
QN7328
Public Made by Adomby adom
QNHCHIP Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 16d ago |
| viewers | 16d ago |
| package.json | 16d ago |
| page.json | 16d ago |
| qn7328-etched.glb | 16d ago |
| qn7328-etched.step | 16d ago |
| qn7328-hero.glb | 16d ago |
| qn7328-hero.overlay.json | 16d ago |
| qn7328.glb | 16d ago |
| qn7328.kicad_mod | 16d ago |
| qn7328.kicad_sym | 16d ago |
| qn7328.lbr | 16d ago |
| qn7328.step | 16d ago |
| README.md | 16d ago |
QN7328
QNHCHIP · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
QN7328 from QNHCHIP, 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 | VSS | power_in | Ground reference pin of the regulator (standard SOT89-3 (P) pin assignment per the pin table). |
| 2 | VIN | power_in | Regulator input supply; the datasheet's absolute maximum input voltage is 18 V. |
| 3 | VOUT | power_out | Regulated output; the datasheet gives a maximum output current of 500 mA absolute maximum and 250 mA IOUT(max) at VIN=Vout+1V, with the pin voltage limited to Vss-0.3 V to VIN+0.3 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | QNHCHIP |
| 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 |
|---|---|---|---|---|---|---|---|
| Output voltage (effective) | VOUT(E) | 0.99 | 1.01 | x VOUT(T) | IOUT=10mA, VIN=Vout+1V (Note 1) | 7 | |
| Input voltage | Vin | 18 | V | 7 | |||
| Load regulation | ΔVOUT | 10 | 40 | mV | VIN=Vout+1V, 1mA≤IOUT≤60mA | 7 | |
| Quiescent current | ISS | 3 | 5 | μA | VIN=Vout+1V | 7 | |
| Line regulation | ΔVOUT/ΔVIN | 0.1 | 0.2 | %/V | IOUT=10mA, Vout+1V≤VIN≤18V | 7 | |
| Output voltage temperature coefficient | ΔVOUT/ΔTa | -0.7 | 0.7 | mV/℃ | Vin=[Vout+1]V, IOUT=10mA, -40℃<Ta<85 | 7 | |
| Power dissipation (SOT89-3) | Pd | 1.25 | W | SOT89-3 package | 5 | ||
| Input voltage (absolute maximum) | VIN | 18 | V | 5 | |||
| Output current (absolute maximum) | Iout | 500 | mA | 5 | |||
| Operating ambient temperature range | TOpr | -40 | 85 | ºC | 5 | ||
| Storage temperature range | Tstg | -55 | 150 | ºC | 5 | ||
| Junction temperature range | TJ | -40 | 150 | ºC | 5 | ||
| Maximum output current | IOUT(max) | 250 | mA | VIN=Vout+1V | 7 | ||
| Dropout voltage | Vdif1 | 90 | mV | IOUT=40mA | 7 | ||
| Nominal output voltage (A28 variant) | VOUT(T) | 2.8 | V | QN73XXA28PG selection guide, ±1% | 3 | ||
| Thermal resistance junction-to-ambient (SOT89-3) | θJA | 100 | ºC/W | SOT89-3 package | 5 |
CAD (KiCad official)
- Symbol:
QN7328 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
qn7328-etched.step/qn7328-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);qn7328.step/qn7328.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: QNHCHIP datasheet (14 pp, sha256
d73d3d2787d848ff, retrieved 2026-10-17, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).