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docs tmi3252sh: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
viewers tmi3252sh: viewers · Ray 1mo ago
package.json Publish 0.2.0 · Ray 1mo ago
page.json tmi3252sh: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 18h ago
README.md tmi3252sh: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 16d ago
tmi3252sh-etched.fit.json tmi3252sh: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
tmi3252sh-etched.glb tmi3252sh: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
tmi3252sh-etched.step tmi3252sh: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
tmi3252sh.glb Publish 0.1.0 · Ray 1mo ago
tmi3252sh.kicad_mod Publish 0.1.0 · Ray 1mo ago
tmi3252sh.kicad_sym Publish 0.1.0 · Ray 1mo ago
tmi3252sh.lbr Publish 0.1.0 · Ray 1mo ago
tmi3252sh.step Publish 0.1.0 · Ray 1mo ago

TMI3252SH

TMI · DC-DC Converters · SOT-23-6

TMI3252SH 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 BS passive Bootstrap pin. A capacitor (typ. 0.1µF) is connected between LX and BS to form a floating supply for the high-side switch driver.
2 GND power_in Ground pin. Power and signal ground return for the device.
3 FB input Output voltage feedback input. Connect to the center point of the external resistor divider; internal reference VREF is 0.6V.
4 EN input Enable input. Drive logic-high (rising threshold 1.1V typ) to enable the IC; drive logic-low (falling threshold 0.94V typ) to enter micro-power shutdown. Do not float. Absolute max 20V.
5 IN power_in Power supply input pin. Operating input range 4.5V to 18V; absolute max 20V. Bypass with a low-ESR ceramic capacitor to GND.
6 LX power_out Switching node. Connects to the external inductor and to the bootstrap capacitor. Rated -0.3V to 20V DC (-4.5V to 22V <10ns transient). Delivers up to 2A output current.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • TMI3252SH

CAD (KiCad official)

  • Symbol: TMI3252SH
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: tmi3252sh-etched.step / tmi3252sh-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tmi3252sh.step / tmi3252sh.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
tmi3252sh.step 97 KB You want the bare part, or you mark your own boards.
tmi3252sh-etched.step 1.9 MB You want the part with TMI3252SH already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 456 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 6c65ded2d20b6579, 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