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Contents

README

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ETA3499S2G

etasolution · DC-DC Converters · SOT-23-6L

ETA3499S2G from etasolution, in a SOT-23-6L. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 EN input Enable pin for the IC: drive high to enable the part and low to disable it, with EN input low maximum 0.4V and input high minimum 1.5V per the electrical characteristics.
2 GND power_in Ground reference pin for the device.
3 SW output Inductor connection: connect an inductor between SW and the regulator output; SW voltage is rated -0.3V (-2V for under 10ns) to 9V.
4 IN power_in Supply voltage input operating from 2.4V to 7.3V; bypass with a 10μF ceramic capacitor to GND.
5 PG output Power good pin: high impedance when the output is within regulation and pulled low when the output is below its nominal value; the pull-up resistor must not be connected to any voltage higher than the device input voltage.
6 FB input Feedback input: connect an external resistor divider from the output to FB and GND to set the output between 0.6V and VIN.

Key specifications

Parameter Value
Manufacturer etasolution
Package SOT-23-6L
Category Power Management (PMIC)
Pins 6

CAD (KiCad official)

  • Symbol: ETA3499S2G
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6L (KiCad packages3D, STEP)
  • 3D model files: eta3499s2g-etched.step / eta3499s2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); eta3499s2g.step / eta3499s2g.glb are the bare package body.

Provenance

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

  • Datasheet: etasolution datasheet (7 pp, sha256 e4dd8ab90b0caedf, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF