component
TMI3410
Public Made by Adomby adom
TMI DC-DC Converters, SOT-23-5. 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
markdownTMI3410
TMI · DC-DC Converters · SOT-23-5
TMI3410 from TMI, in a SOT-23-5. 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 | EN | input | Chip Enable. Drive above 1.5V (typ EN rising threshold ~1.15V) to turn the part on; drive below 0.4V (typ EN falling ~1.0V) to shut down. Do not leave floating. EN leakage <= 1.0 uA; absolute max -0.3V to 6.0V. |
| 2 | GND | power_in | Device ground reference. Return for the internal low-side NMOS switch and control circuitry. |
| 3 | LX | power_out | Power switch (SW) node connecting to the external inductor. Common drain of the internal P-channel high-side (RDS(on) ~120 mOhm) and N-channel low-side (RDS(on) ~70 mOhm) MOSFETs. Peak current limit ~3.2A typ. Abs max -0.3V to 6.0V (transient -3.5V to 7.5V). |
| 4 | IN | power_in | Power supply input pin (VIN). Operating range 2.5V to 5.5V; UVLO ~2.35V, input OVP ~5.9V. Bypass locally with a ceramic capacitor (typ 22 uF). |
| 5 | FB | input | Output voltage feedback pin. Connect to an external resistor divider from VOUT; internally regulated to VREF = 0.600V (typ, 0.588-0.612V). Abs max -0.3V to 6.0V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TMI |
| Package | SOT-23-5 |
| Category | PMIC |
| Pins | 5 |
Ordering variants
Same part, different packaging or reel option.
TMI3410
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 | V | 2 | |||
| LX Voltages | -0.3 | 6 | V | 2 | |||
| LX Voltage (<10ns transient) | -2.5 | 7 | V | 2 | |||
| LX Voltage (<5ns transient) | -3.5 | 7.5 | V | 2 | |||
| EN, FB Voltage | -0.3 | 6 | V | 2 | |||
| Storage Temperature Range | -65 | 150 | °C | 2 | |||
| Junction Temperature (Note2) | -40 | 155 | °C | 2 | |||
| Power Dissipation | 650 | mW | 2 | ||||
| Lead Temperature (Soldering,10s) | 260 | °C | Soldering,10s | 2 | |||
| Voltage Range IN | 2.5 | 5.5 | V | 3 | |||
| TJ Operating Junction Temperature Range | TJ | -40 | 125 | °C | 3 | ||
| Input Voltage Range | 2.5 | 5.5 | V | 4 | |||
| Input OVP Threshold | 5.9 | 6 | V | VIN rising | 4 | ||
| Quiescent Current | 40 | 100 | µA | VEN=2.0V, IOUT=0A, VFB=VREF x 105% | 4 | ||
| Shutdown Current | 0.2 | 1 | µA | VEN=0V | 4 | ||
| Feedback Voltage Accuracy | VREF | 0.588 | 0.6 | 0.612 | V | TA = 25°C, PWM Operation | 4 |
| Peak Current Limit in normal operation | 2.7 | 3.2 | 3.7 | A | in normal operation | 4 | |
| Peak Current Limit in Hiccup mode | 2.15 | 2.5 | 2.9 | A | Hiccup mode | 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 | |
| UVLO Threshold | 2.35 | V | VIN rising | 4 | |||
| UVLO Hysteresis | 0.4 | V | 4 | ||||
| Oscillation Frequency (VOUT=100%) | 1 | MHz | VOUT=100% | 4 | |||
| Oscillation Frequency (VOUT=0V, During Hiccup Mode) | 350 | kHz | VOUT=0V, During Hiccup Mode | 4 | |||
| On Resistance of PMOS | 120 | mΩ | ILX=100mA | 4 | |||
| On Resistance of NMOS | 70 | mΩ | ILX=-100mA | 4 | |||
| EN Leakage Current | 1 | µA | 4 | ||||
| LX Leakage Current | 1 | µA | VEN=0V, VIN=VLX=5V | 4 | |||
| Thermal Shutdown Threshold | 150 | °C | 4 | ||||
| Thermal Shutdown Hysteresis | 20 | °C | 4 | ||||
| θJA Junction-to-ambient thermal resistance | θJA | 200 | °C/W | 3 | |||
| θJC Junction-to-case thermal resistance | θJC | 62 | °C/W | 3 |
CAD (KiCad official)
- Symbol:
TMI3410 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
tmi3410-etched.step/tmi3410-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tmi3410.step/tmi3410.glbare the bare package body.
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
tmi3410.step |
85 KB | You want the bare part, or you mark your own boards. |
tmi3410-etched.step |
1.3 MB | You want the part with TMI3410 already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 335 faces against 102 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 (15 pp, sha256
f73e6bdaf6e6d5f2, 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).