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ETA3414S2F

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by Ray

etasolution DC-DC Converters, SOT23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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ETA3414S2F

etasolution · DC-DC Converters · SOT23-5

ETA3414S2F from etasolution, in a SOT23-5. 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 EN input Enable pin for the IC. Drive high (>1.2V rising) to enable the converter, low (<0.4V) to disable. Defaults low when floating. EN input current is 1-2 uA at VEN=5V. Absolute maximum -0.3V to 9V.
2 GND power_in Device ground return. Connect to a large copper pour for thermal dissipation and to close the switching current loop with the input capacitor.
3 SW output Inductor switch node. Connect an inductor (~1 uH typical) between SW and the regulator output. Internal high-side PMOS (200 mOhm) and low-side NMOS (180 mOhm) drive this node at 3 MHz. Cycle-by-cycle high-side current limit is 1.6A. Absolute maximum -0.3V to 9V.
4 IN power_in Supply voltage input, 2.6V to 7V operating range. Bypass with a 10 uF ceramic capacitor to GND placed close to the pin. UVLO rising threshold 2.35V (300 mV hysteresis); OVP rising 7V (400 mV hysteresis). Absolute maximum -0.3V to 9V.
5 FB input Feedback input to the error amplifier. Connect an external resistor divider from VOUT to FB and GND to program output between 0.6V and VIN. Internal reference is 0.6V (0.588V-0.612V). FB input current is ~0.01 uA typ (1 uA max). Absolute maximum -0.3V to 6V. RTOP = RBOTTOM x [(VOUT/0.6) - 1].

Key specifications

Parameter Value
Manufacturer etasolution
Package SOT23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • ETA3414S2F

CAD (KiCad official)

  • Symbol: ETA3414S2F
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT23-5 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: etasolution datasheet (9 pp, sha256 d88c45cf0e3f3f93, 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