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EUP3453WIR1

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Eutech Microelectronics DC-DC Converters, SOIC-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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EUP3453WIR1

Eutech Microelectronics · DC-DC Converters · SOIC-8-EP

EUP3453WIR1 from Eutech Microelectronics, in a SOIC-8-EP. 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 BST passive Bootstrap pin, connected to the SW node through a 10nF capacitor (CBST) in the typical application circuit.
2 VIN power_in Input supply pin, operating range 4.75V to 40V, decoupled with input capacitors (2x10µF in the typical circuit).
3 SW output Switching node of the internal 0.1Ω DMOS output switch, connected to the inductor and catch diode.
4 GND power_in Ground pin.
5 FB input Feedback input from the output resistor divider that sets the output voltage from 0.92V to 15V.
6 COMP passive Compensation pin, connected to an RC network (1.5nF and 10k in the typical circuit).
7 OCSET input Output current threshold programming pin, set by an external resistor to ground (200k in the typical circuit).
8 OVEN input Over voltage threshold programming input, set by an external resistor divider from the output.
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Eutech Microelectronics
Package SOIC-8-EP
Category Power Management ICs
Pins 9

CAD (KiCad official)

  • Symbol: EUP3453WIR1
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm
  • 3D model: SOIC-8-EP (KiCad packages3D, STEP)
  • 3D model files: eup3453wir1-etched.step / eup3453wir1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); eup3453wir1.step / eup3453wir1.glb are the bare package body.

Provenance

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

  • Datasheet: Eutech Microelectronics datasheet (1 pp, sha256 cd23076180bc3210, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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