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Contents

README

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HT7133H23

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

HT7133H23 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 reference (0 V). Must be tied to the system single-point ground; also the return for the internal bandgap reference and error amplifier.
2 VIN power_in Unregulated supply input, absolute maximum +30 V (recommended operating -0.3 V to +30 V). Bypass with a 10 µF polarized capacitor placed close to the pin.
3 VOUT power_out Regulated 3.3 V output (±2%), 100 mA maximum. A ceramic output capacitor >=2.2 µF (10 µF recommended) is required from VOUT to GND for phase compensation via the cap's ESR.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • HT7133H23
  • HT7133-H
  • HT7133H23HX7133-H
  • HT7133-92
  • HT7133H23HX7133

CAD (KiCad official)

  • Symbol: HT7133H23
  • 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 (8 pp, sha256 9434b35fbd744a46, 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