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Contents

README

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HX7333

HX hengjiaxing · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3

HX7333 from HX hengjiaxing, in a SOT-23-3. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground / common return for input and output. Connect to system ground plane; the bottom of both input and output decoupling capacitors returns here.
2 VOUT power_out Regulated 3.3 V output (±3%, 3.201-3.399 V). Requires a 10 µF ceramic output capacitor to GND for stability. Rated for up to 250 mA continuous with VIN ≥ 4.3 V; typical dropout 90 mV at 40 mA.
3 VIN power_in Unregulated input supply. Recommended operating range 4.3 V to 12 V (absolute max 15 V). Bypass with a 10 µF ceramic capacitor to GND close to the pin.

Key specifications

Parameter Value
Manufacturer HX hengjiaxing
Package SOT-23-3
Category PMIC
Pins 3

CAD (KiCad official)

  • Symbol: HX7333
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: HX hengjiaxing datasheet (7 pp, sha256 03dadeebae0b9afe, retrieved 2026-08-17, 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: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF