component
TMI3341
Public Made by Adomby adom
TMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownTMI3341
TMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-6
TMI3341 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) connected between LX and BS forms a floating supply for the high-side MOSFET gate driver. |
| 2 | GND | power_in | Ground pin. Device ground return for all internal circuitry and the low-side MOSFET. |
| 3 | FB | input | Output voltage feedback input. Connect to the center tap of the external resistor divider from VOUT. Internal reference VFB = 0.8V ±2%. |
| 4 | EN | input | Enable input. Drive logic-high to enable the IC, logic-low to disable and enter micro-power shutdown. EN rising threshold ~1.1V; do not leave floating. Max VEN = VIN. |
| 5 | IN | power_in | Power supply input, 4.5V to 30V (abs max 32V). Bypass with a low-ESR ceramic capacitor (e.g. 22µF + 100nF) close to the pin. |
| 6 | LX | power_out | Switching node. Common drain of the internal high-side and low-side power MOSFETs; connects to the external inductor and the bootstrap capacitor. Rated 1.2A continuous output current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TMI |
| Package | SOT-23-6 |
| Category | PMIC |
| Pins | 6 |
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 | 32 | V | 2 | |||
| Enable pin, EN | -0.3 | V | 2 | ||||
| LX Voltages | -0.3 | 32 | V | 2 | |||
| LX Voltages (<10ns transient) | -2 | 35 | V | 2 | |||
| FB Voltage | -0.3 | 6 | V | 2 | |||
| BS to LX Voltage | -0.3 | 6 | V | 2 | |||
| Storage Temperature Range | -65 | 150 | °C | 2 | |||
| Junction Temperature | 150 | °C | 2 | ||||
| Power Dissipation | 1000 | mW | 2 | ||||
| Lead Temperature (Soldering, 10s) | 260 | °C | Soldering, 10s | 2 | |||
| Voltage Range IN | 4.5 | 30 | V | 3 | |||
| TJ Operating Junction Temperature | TJ | -40 | 125 | °C | 3 | ||
| Input Voltage Range | 4.5 | 30 | V | 4 | |||
| FB Input Leakage Current | -0.5 | 0.5 | μA | 4 | |||
| EN Input Leakage Current | -1 | 1 | μA | VEN=2V | 4 | ||
| EN Rising Threshold | 0.85 | 1.1 | 1.3 | V | 4 | ||
| Oscillation Frequency | 1.2 | 1.5 | 1.8 | MHz | 4 | ||
| Regulated Feedback Voltage | 0.784 | 0.8 | 0.816 | V | TA=25°C | 4 | |
| Soft Start Time | 0.5 | 0.7 | 1 | ms | 4 | ||
| Quiescent Current | 350 | 500 | μA | VEN=2V, VFB=VREF x 105% | 4 | ||
| Shutdown Current | 5 | 10 | μA | VIN=12V, EN=0V | 4 | ||
| LX Leakage Current | 1 | 10 | μA | VEN=0V, VLX=0V | 4 | ||
| UVLO Rising Threshold | 4.3 | 4.5 | V | 4 | |||
| Maximum Duty Cycle | 78 | % | 4 | ||||
| Switch Current Limit Minimum Duty Cycle | 2.7 | A | 4 | ||||
| UVLO Hysteresis | 0.3 | V | 4 | ||||
| OVP Threshold | 31.5 | V | 4 | ||||
| High-Side Switch On-Resistance | 250 | mΩ | 4 | ||||
| Low-Side Switch On-Resistance | 120 | mΩ | 4 | ||||
| Minimum On-Time | 100 | ns | 4 | ||||
| Minimum Off-Time | 125 | ns | 4 | ||||
| Hiccup on Time | 1 | ms | 4 | ||||
| Hiccup Time Before Restart | 4.5 | ms | 4 | ||||
| EN Hysteresis | 150 | mV | 4 | ||||
| EN Enable Delay Time | 180 | μs | 4 | ||||
| Thermal Shutdown Threshold | 165 | °C | 4 | ||||
| Thermal Shutdown Hysteresis | 15 | °C | 4 | ||||
| Junction-to-ambient thermal resistance (θJA) | θJA | 120 | °C/W | 3 | |||
| Junction-to-case(top) thermal resistance (θJC) | θJC | 45 | °C/W | 3 |
CAD (KiCad official)
- Symbol:
TMI3341 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
tmi3341-etched.step/tmi3341-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tmi3341.step/tmi3341.glbare the bare package body.
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
tmi3341.step |
97 KB | You want the bare part, or you mark your own boards. |
tmi3341-etched.step |
1.4 MB | You want the part with TMI3341 already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 355 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 (12 pp, sha256
f6bbdb378fc7ebf0, 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).