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rt9166-33gvl

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Richtek Tech RT9166 33GVL Z00 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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README

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RT9166-33GVL

Richtek Tech RT9166 33GVL Z00 · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3L

RT9166-33GVL from Richtek Tech RT9166 33GVL Z00, in a SOT-23-3L. 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 Common ground. Reference return for the internal 1.2V bandgap and error amplifier; connect to a single-point ground with a short trace to the CIN and COUT return.
2 VOUT power_out Regulator output. Fixed 3.3V (-1%/+3% accuracy at IOUT = 1mA), sourcing up to 300mA (RT9166 current limit). Requires a 1µF minimum X7R/X5R ceramic capacitor (or 3.3µF Y5V) to GND for loop stability; ESR range 10mΩ-50mΩ recommended.
3 VIN power_in Supply input. Recommended operating range 2.8V to 5.5V (absolute maximum 6.5V). Requires a ≥1µF ceramic decoupling capacitor to GND located within 1cm of the pin to guarantee stability.

Key specifications

Parameter Value
Manufacturer Richtek Tech RT9166 33GVL Z00
Package SOT-23-3L
Category PMIC
Pins 3

Ordering variants

  • RT9166-33GVL
  • RT9166-33GVLX
  • RT9166-33GVLXL
  • RT9166-33GVLG
  • RT9166-33GVLGL
  • RT9166-33GVLZ
  • RT9166-33GVLL

CAD (KiCad official)

  • Symbol: RT9166-33GVL
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: rt9166-33gvl-etched.step / rt9166-33gvl-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rt9166-33gvl.step / rt9166-33gvl.glb are the bare package body.

Provenance

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

  • Datasheet: Richtek Tech RT9166 33GVL Z00 datasheet (None pp, sha256 1d9800fc32250eea, retrieved 2026-08-17, tier: manufacturer)
  • 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

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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