component

tmi3112h

Public Made by Adom

by adom

TMI DC-DC Converters, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)tmi3112hfactory-2.0.0extractor-text
Overview Files Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 15d ago
viewers Publish 0.1.0 · Ray 15d ago
package.json Publish 0.1.0 · Ray 15d ago
page.json Publish 0.1.0 · Ray 15d ago
README.md Publish 0.1.0 · Ray 15d ago
tmi3112h-etched.glb Publish 0.1.0 · Ray 15d ago
tmi3112h-hero.glb Publish 0.1.0 · Ray 15d ago
tmi3112h-hero.overlay.json Publish 0.1.0 · Ray 15d ago
tmi3112h.glb Publish 0.1.0 · Ray 15d ago
tmi3112h.kicad_mod Publish 0.1.0 · Ray 15d ago
tmi3112h.kicad_sym Publish 0.1.0 · Ray 15d ago
tmi3112h.lbr Publish 0.1.0 · Ray 15d ago
tmi3112h.step Publish 0.1.0 · Ray 15d ago

TMI3112H

TMI · DC-DC Converters · SOT-23-5

TMI3112H from TMI, in a SOT-23-5. 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 EN input Chip enable pin: drive EN above 1.5V to turn the part on and below 0.4V to turn it off, and do not leave it floating.
2 GND power_in Ground pin for the device.
3 LX output Power switch output connected to the inductor; it ties to the drains of the internal P-ch and N-ch MOSFET switches.
4 IN power_in Power supply input pin; the recommended input voltage range is 2.7V to 5.5V.
5 FB input Output voltage feedback pin, used with external resistors R1 and R2 to program the output voltage (regulation as low as 0.6V).

Key specifications

Parameter Value
Manufacturer TMI
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Input Supply Voltage -0.3 6.5 V 2
LX Voltages -0.3 6.5 V 2
EN, FB Voltage -0.3 6.5 V 2
LX Voltage (<10ns transient) -2.5 7 V <10ns transient 2
LX Voltage (<5ns transient) -3.5 7.5 V <5ns transient 2
Storage Temperature Range -65 150 °C 2
Junction Temperature -40 155 °C Note 2 2
Power Dissipation 650 mW 2
Lead Temperature (Soldering) 260 °C Soldering, 10s 2
Voltage Range IN 2.7 5.5 V 3
TJ Operating Junction Temperature Range TJ -40 125 °C 3
Input Voltage Range 2.7 5.5 V 4
Input OVP Threshold 5.75 5.85 6.1 V VIN rising 4
Quiescent Current 40 100 µA VEN=2.0V, IOUT=0, VFB=VREF*105% 4
Shutdown Current 0.1 1 µA VEN =0V 4
Feedback Voltage Accuracy 0.588 0.6 0.612 V TA = 25°C, PWM Operation 4
EN Rising Threshold 0.9 1.15 1.4 V VIN=5V 4
EN Falling Threshold 0.75 1 1.25 V VIN=5V 4
Soft Start Time 0.7 1 1.3 ms 4
EN Leakage Current 0.01 1 µA 4
LX Leakage Current 0.01 1 µA VEN=0V, VIN=VLX=5V 4
Junction-to-ambient thermal resistance θJA 200 °C/W JESD51-7, 4-layer PCB 3
Junction-to-case thermal resistance θJC 60 °C/W 3

CAD (KiCad official)

  • Symbol: TMI3112H
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: tmi3112h-etched.step / tmi3112h-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tmi3112h.step / tmi3112h.glb are the bare package body.

Provenance

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

  • Datasheet: TMI datasheet (14 pp, sha256 dd1872111c9d1030, retrieved 2026-10-19, 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