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Contents

README

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HT7133

KEXIN · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

HT7133 from KEXIN, in a SOT-89-3. 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 Device ground return. Should be tied to system single-point ground per the application circuit.
2 VIN power_in Unregulated positive supply input, -0.3 V to 28 V absolute max, 4.5 V to 24 V normal operating range for the 3.3 V variant. Bypass with a 10 uF capacitor to GND as shown in the basic application circuit.
3 VOUT power_out Regulated 3.3 V ±5% output (HT7133), 30 mA typical / 20 mA min output current. Requires a 10 uF output capacitor to GND for stability.

Key specifications

Parameter Value
Manufacturer KEXIN
Package SOT-89-3
Category PMIC
Pins 3

CAD (KiCad official)

  • Symbol: HT7133
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: ht7133-etched.step / ht7133-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht7133.step / ht7133.glb are the bare package body.

Provenance

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

  • Datasheet: KEXIN datasheet (5 pp, sha256 ce94186aa5a83426, retrieved 2026-08-17, tier: lcsc)
  • 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