component

TMI3344

Public Made by Adom

by adom

TMI DC-DC Converters, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)tmi3344factory-2.0.0extractor-text
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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 6h ago
viewers tmi3344: viewers · Ray 6h ago
package.json Publish 0.1.0 · Ray 6h ago
page.json Set visibility: public · Ray 6h ago
README.md Publish 0.1.0 · Ray 6h ago
tmi3344-etched.glb tmi3344: factory component page (tier=lcsc) · Ray 6h ago
tmi3344-etched.step tmi3344: factory component page (tier=lcsc) · Ray 6h ago
tmi3344-hero.glb tmi3344: hero GLB from the etched model (keeps the MPN mark) · Ray 6h ago
tmi3344-hero.overlay.json Publish 0.1.0 · Ray 6h ago
tmi3344.glb Publish 0.1.0 · Ray 6h ago
tmi3344.kicad_mod Publish 0.1.0 · Ray 6h ago
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tmi3344.lbr Publish 0.1.0 · Ray 6h ago
tmi3344.step Publish 0.1.0 · Ray 6h ago

TMI3344

TMI · DC-DC Converters · ESOP-8

TMI3344 from TMI, in a ESOP-8. 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 BS passive High-side gate driver bootstrap pin that supplies the high-side LDMOS gate driver, with a 100nF capacitor connected between BS and SW.
2 IN power_in Power input pin; the recommended input voltage range is 4.5V to 30V, and the input overvoltage protection threshold is typically 32V.
3 SW output Switch pin connected to the external inductor; the integrated high-side and low-side power MOSFETs drive this node.
4 GND power_in Ground pin for the device.
5 FB input Feedback pin that regulates the output against the 0.925V internal reference (±2% accuracy) via the external feedback divider.
6 COMP passive External compensation pin for the error amplifier output that feeds the peak current mode PWM comparator.
7 EN input Enable pin: logic-high enables the device and logic-low enters micro-power shutdown; it must not be left floating, has a 5V Zener clamp, and its sink current must stay below 1mA when pulled up through a resistor.
8 SS passive Soft-start and tracking pin; an external capacitor sets the soft-start time using the 2.6µA internal charge current, and the voltage on this pin overrides the internal reference.
9 GND power_in Ground exposed pad that should be connected to the power ground copper area with copper and vias for heat dissipation and noise immunity.

Key specifications

Parameter Value
Manufacturer TMI
Package ESOP-8
Category Power Management (PMIC)
Pins 9

CAD (KiCad official)

  • Symbol: TMI3344
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
  • 3D model: ESOP-8 (KiCad packages3D, STEP)
  • 3D model files: tmi3344-etched.step / tmi3344-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tmi3344.step / tmi3344.glb are the bare package body.

Provenance

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

  • Datasheet: TMI datasheet (14 pp, sha256 129a64be06632fa5, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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