component
TMI2284Q
Public Made by Adomby adom
TMI DC-DC Converters, SOP-8. Pinout cross-checked by two models against 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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README
markdownTMI2284Q
TMI · DC-DC Converters · SOP-8
TMI2284Q from TMI, in a SOP-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 | FB | input | Feedback pin that senses the output voltage through the RFB1/RFB2 divider (1.22V typical feedback reference) and sets line drop compensation via RFB1. |
| 2 | FSW | passive | Switching frequency set pin; connect a resistor to ground (120kHz if floating), and do not connect this pin directly to GND. |
| 3 | ISET | passive | Output current limit set pin; connect a resistor to ground, with a default limit of 3.5A at 5V output when floating. |
| 4 | IN | power_in | Power input pin with 4.5V to 40V operating range (absolute maximum 42V). |
| 5 | SW | power_out | Switch pin connected to the external inductor (absolute maximum -0.3 to 42V). |
| 6 | SW | power_out | Switch pin connected to the external inductor (absolute maximum -0.3 to 42V). |
| 7 | GND | power_in | Ground pin. |
| 8 | GND | power_in | Ground pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TMI |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
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 Voltage Range | 4.5 | 40 | V | 4 | |||
| Feedback Voltage Accuracy | 1.19 | 1.22 | 1.25 | V | 4 | ||
| FB Pin input current | -50 | 50 | nA | 4 | |||
| Quiescent Current | 1 | 4 | mA | VOUT=5V,No load | 4 | ||
| Input Over Voltage Protection Threshold | 40.2 | V | 4 | ||||
| Under Voltage Lockout Threshold | 4 | V | VIN rising | 4 | |||
| UVLO Hysteresis | 0.16 | V | 4 | ||||
| Soft Start Time | 4 | ms | 4 | ||||
| Switching Current limit | 5 | A | Duty=50% | 4 | |||
| SW leakage | 10 | μA | 4 | ||||
| Maximum Duty Cycle | 100 | % | Fs=130kHz | 4 | |||
| Switching Frequency (RFSW=22kΩ) | 270 | kHz | RFSW=22kΩ | 4 | |||
| Switching Frequency (FSW pin floating) | 120 | kHz | FSW pin floating | 4 | |||
| Switch On-Resistance (high side) | 45 | mΩ | 4 | ||||
| Switch On-Resistance (low side) | 25 | mΩ | 4 | ||||
| Short circuit Frequency | 40 | kHz | VFB=0V, FSW pin floating | 4 | |||
| Minimum On Time | 150 | ns | 4 | ||||
| Thermal Shutdown Threshold | 160 | °C | Guaranteed by design | 4 | |||
| Thermal Shutdown Hysteresis | 20 | °C | Guaranteed by design | 4 | |||
| VIN IN Voltage Range (recommended operating) | VIN | 4.5 | 40 | V | 3 | ||
| TJ Operating Junction Temperature Range | TJ | -40 | 125 | °C | 3 | ||
| Input Supply Voltage IN and SW (absolute maximum) | -0.3 | 42 | V | 2 | |||
| All Other Pins Voltage Range (absolute maximum) | -0.3 | 6 | V | 2 | |||
| Storage Temperature Range | -65 | 150 | °C | 2 | |||
| Junction Temperature Range (absolute maximum) | -40 | 150 | °C | 2 | |||
| Power Dissipation | 2 | W | 2 | ||||
| Lead Temperature (Soldering) | 260 | °C | Soldering, 10s | 2 | |||
| ESD Human Body Model for all pins | VESD | -2000 | 2000 | V | JEDEC specification JS-001 | 3 | |
| Junction-to-ambient Thermal Resistance | 60 | °C/W | 2 | ||||
| Junction-to-case Thermal Resistance | 46 | °C/W | 2 |
CAD (KiCad official)
- Symbol:
TMI2284Q - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
tmi2284q-etched.step/tmi2284q-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tmi2284q.step/tmi2284q.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TMI datasheet (11 pp, sha256
98401d3243020e3b, retrieved 2026-10-20, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).