component

TMI3252

Public Made by Adom

by adom

TMI DC-DC Converters, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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TMI3252

TMI · DC-DC Converters · SOT-23-6

TMI3252 from TMI, in a SOT-23-6. 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 Ground pin. Device analog and power return.
2 LX power_out Switching node. Connects to the source of the internal high-side MOSFET and drain of the low-side MOSFET; drives the external inductor. Absolute max −0.3V to 20V.
3 IN power_in Input supply pin. 4.5V to 18V recommended; connects to the drain of the internal high-side MOSFET. Bypass with local input capacitors close to the pin.
4 FB input Output voltage feedback input. Connect to the center point of an external resistor divider from VOUT to GND. Regulated to VREF=0.8V (TMI3252) with absolute max −0.3V to 6V.
5 EN input Enable input. Drive to logic-high (VIH ≥ 1.5V) to enable the IC; drive to logic-low (VIL ≤ 0.3V) to enter micro-power shutdown. Do not leave floating.
6 BS passive Bootstrap capacitor pin. A capacitor (typ. 0.1µF) between LX and BS forms the floating supply for the high-side gate driver. Absolute max −0.3V to 23V.

Key specifications

Parameter Value
Manufacturer TMI
Package SOT-23-6
Category PMIC
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • TMI3252
  • TMI3252T
  • TMI3252S

CAD (KiCad official)

  • Symbol: TMI3252
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: tmi3252-etched.step / tmi3252-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tmi3252.step / tmi3252.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
tmi3252.step 97 KB You want the bare part, or you mark your own boards.
tmi3252-etched.step 1.5 MB You want the part with TMI3252 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 374 faces against 117 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: TMI datasheet (15 pp, sha256 30927acc2ca98daa, 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