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TMI3255SF

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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Datasheet

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Contents

README

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TMI3255SF

TMI · DC-DC Converters · SOT-23-6

TMI3255SF 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 FB input Output voltage feedback input. Connect FB to the center point of the external resistor divider. Regulated feedback voltage is 0.6V (±1.5%). FB input leakage is ±0.5µA max.
2 EN input Enable input. Drive high (>1.05V typ, 1.20V max) to enable the IC; drive low (<0.90V) to disable and enter micro-power shutdown mode. Do not float EN. Max input rating 20V; 120mV hysteresis; 300µs enable delay.
3 GND power_in Ground pin. Return for the low-side MOSFET and all internal circuitry. Connect to a large copper area for thermal performance.
4 IN power_in Power supply input pin. Accepts 4.5V to 18V (20V absolute max). Bypass with a ceramic capacitor placed close to the pin. OVP threshold ~19V typ.
5 LX power_out Switching node. Connect to the external inductor. Internal high-side and low-side MOSFETs switch this node between IN and GND. Absolute max -0.3V to 20V (-4.5V to 22V for <10ns transients).
6 BS passive Bootstrap pin. A capacitor (typ 0.1µF) connected between BS and LX forms a floating supply for the high-side MOSFET gate driver. Absolute max 23V referenced to GND.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • TMI3255SF

CAD (KiCad official)

  • Symbol: TMI3255SF
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: tmi3255sf-etched.step / tmi3255sf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tmi3255sf.step / tmi3255sf.glb are the bare package body.

Provenance

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

  • Datasheet: TMI datasheet (14 pp, sha256 6f4c0c6a566eb888, 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