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HT7140

Public Unreviewed

by Ray

HX hengjiaxing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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HT7140

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

HT7140 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 Chip ground reference (0 V). Common return for input and output.
3 VIN power_in Regulator input supply. Absolute max 20V; recommended operating up to 18V. Decouple with a 10µF capacitor to GND close to the pin.
2 VOUT power_out Regulated 4.0V output (±3%). Typical dropout 0.1V; supports up to 100mA. Requires a 10µF output capacitor to GND for stability.

Key specifications

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

CAD (KiCad official)

  • Symbol: HT7140
  • 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 (9 pp, sha256 858fac74038c3101, 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