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QX2304L33F

Public Made by Adom

by adom

QX Micro Devices DC-DC Converters, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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QX2304L33F

QX Micro Devices · DC-DC Converters · SOT-23-5

QX2304L33F from QX Micro Devices, in a SOT-23-5. 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 EN input Active-high enable input; input high level is 0.4*VOUT minimum and low level is 0.2 V maximum, with standby input current of 1 uA max when low.
2 VOUT input Output voltage feedback pin (3.3 V trimmed output for this variant); absolute maximum voltage is 7 V.
3 NC unconnected No connection, left floating.
4 GND power_in Ground.
5 LX output Drain of the internal power switch connecting to the inductor; absolute maximum voltage is 7 V and maximum current is 1000 mA.

Key specifications

Parameter Value
Manufacturer QX Micro Devices
Package SOT-23-5
Category Power Management ICs
Pins 5

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 -2.5 2.5 % VIN=2V, ILOAD=10mA 6
Current limit ILIMIT 600 800 1000 mA 6
Efficiency η 90 95 % 6
Start-up voltage VSTART 0.8 V ILOAD=1mA, VIN rising from 0V to 2V 6
Standby input current IINQ 1 uA No load, EN low 6
EN input low level 0.2 V 6
Hold voltage VHOLD 0.6 V ILOAD=1mA, VIN falling from 2V to 0V 6
No-load input current IIN0 15 uA VIN=1.8V, VOUT=3.3V 6
VOUT input current IOUT0 6 uA VOUT pin driven to normal VOUT voltage +0.5V 6
Maximum oscillation frequency FMAX 300 KHz 6
Oscillator duty cycle DCOSC 83 % 6
Max voltage on VOUT and LX VMAX 7 V 5
Max LX current ILX_MAX 1000 mA 5
Max power dissipation SOT23-5 PSOT23-5 0.3 W 5
Operating temperature range TA -20 85 °C 5
Storage temperature range TSTG -40 120 °C 5
Soldering temperature SOT23-5 TSD1 230 240 °C Time less than 30 s 5
ESD HBM VHBM 2000 V HBM 5

CAD (KiCad official)

  • Symbol: QX2304L33F
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: qx2304l33f-etched.step / qx2304l33f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); qx2304l33f.step / qx2304l33f.glb are the bare package body.

Provenance

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

  • Datasheet: QX Micro Devices datasheet (14 pp, sha256 d147751aef814a16, 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, primary claude-sonnet-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