component
QX2303L27E
Public Made by Adomby adom
QX Micro Devices DC-DC Converters, SOT-89. 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
markdownQX2303L27E
QX Micro Devices · DC-DC Converters · SOT-89
QX2303L27E from QX Micro Devices, 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 | GND | power_in | Power ground. |
| 2 | VOUT | power_in | Voltage input pin, which senses the boosted output (2.7V for this variant) and has a maximum voltage of 7V. |
| 3 | LX | output | Switch signal output connected to the inductor and diode, with a maximum voltage of 7V, maximum current of 1000mA and typical current limit of 800mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | QX Micro Devices |
| Package | SOT-89 |
| 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 |
|---|---|---|---|---|---|---|---|
| Current limit | ILIMIT | 600 | 800 | 1000 | mA | 6 | |
| Output voltage accuracy | △VOUT | -2.5 | 2.5 | % | 6 | ||
| Input voltage | VINMAX | 0.7 | V | max printed as VOUT | 6 | ||
| Start-up voltage | VSTART | 0.8 | V | ILOAD=1mA, VIN from 0V to 2V | 6 | ||
| Hold voltage | VHOLD | 0.6 | V | ILOAD=1mA, VIN from 2V to 0V | 6 | ||
| No-load input current | IIN0 | 15 | uA | VIN=1.8V, VOUT=3.3V | 6 | ||
| Maximum oscillation frequency | FMAX | 300 | KHz | 6 | |||
| Maximum duty cycle | DCOSC | 83 | % | 6 | |||
| Max voltage at VOUT and LX | VMAX | 7 | V | 5 | |||
| Max LX current | ILX_MAX | 1000 | mA | 5 | |||
| SOT-89-3 max power dissipation | PSOT-89-3 | 0.5 | W | 5 | |||
| Operating temperature | TA | -20 | 85 | °C | 5 | ||
| Storage temperature | TSTG | -40 | 125 | °C | 5 | ||
| Soldering temperature | TSD | 230 | 240 | °C | time less than 30 seconds | 5 | |
| ESD (HBM) | VESD | 2000 | V | human body model | 5 |
CAD (KiCad official)
- Symbol:
QX2303L27E - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
qx2303l27e-etched.step/qx2303l27e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);qx2303l27e.step/qx2303l27e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: QX Micro Devices datasheet (14 pp, sha256
aba61a03dddaa552, retrieved 2026-10-22, 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-sonnet-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).