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STI3470

Public Made by Adom

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TMI DC-DC Converters, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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STI3470

TMI · DC-DC Converters · SOT-23-6

STI3470 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 0.1uF capacitor is connected between LX and BS to form a floating supply for the high-side switch driver. Absolute max 25V.
2 GND power_in Device ground reference. Connect to the ground plane with a low-impedance path.
3 FB input Adjustable version feedback input. Connect to the center of an external resistor divider from VOUT. Regulated to the internal 0.6V reference (0.588V/0.600V/0.612V).
4 EN input Enable input. Drive to logic-high (>=1.5V) to enable the IC; drive to logic-low (<=0.3V) to disable and enter micro-power shutdown. Absolute max 23V.
5 IN power_in Power supply input pin. Operating range 3.5V-18V; absolute max 23V. Bypass with a low-ESR ceramic capacitor (typically 22uF) close to the pin.
6 LX output Switching node. Internal high-side (120mOhm) and low-side (80mOhm) MOSFET common node. Connect to the external inductor; also references the BS bootstrap capacitor. Absolute max 23V.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • STI3470

CAD (KiCad official)

  • Symbol: STI3470
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: TMI datasheet (13 pp, sha256 2fb3b7dd78ed2071, 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