component
IS32LT3178-STLA3-TR
Public Made by Adomby adom
INTEGRATED SILICON SOLUTION INC Global Sourcing Parts, SOT-23-6. 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
markdownIS32LT3178-STLA3-TR
INTEGRATED SILICON SOLUTION INC · Global Sourcing Parts · SOT-23-6
IS32LT3178-STLA3-TR from INTEGRATED SILICON SOLUTION INC, in a SOT-23-6. 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 | Enable pin (PWM input on IS32LT3178, up to 1kHz); IS32LT3178 EN absolute maximum is 6.0V and sufficient supply voltage on EN is 2.9V to 5.5V for 10mA to 150mA. |
| 2 | GND | power_in | Ground pin; all GND pins must be connected to supply ground. |
| 3 | OUT | passive | Current sink output; maximum output voltage 44V, minimum headroom 1.2V at 150mA, output current limit typically 295mA. |
| 4 | GND | power_in | Ground pin; all GND pins must be connected to supply ground. |
| 5 | GND | power_in | Ground pin; all GND pins must be connected to supply ground. |
| 6 | ISET | passive | Output current setting pin; connect a resistor (10.6kΩ to 160kΩ for SOT23-6) between this pin and GND to set the maximum output current, and do not leave it floating. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | INTEGRATED SILICON SOLUTION INC |
| Package | SOT-23-6 |
| Category | Global Sourcing Parts |
| 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 |
|---|---|---|---|---|---|---|---|
| Output current (25°C) | IOUT | 96.5 | 100 | 103.5 | mA | VOUT>1.0V, VEN=3.3V, RISET=16kΩ, SOT23-6, TA=TJ=25°C | 5 |
| Output current (full temp) | IOUT | 94 | 100 | 106 | mA | VOUT>1.0V, VEN=3.3V, RISET=16kΩ, SOT23-6, -40°C to 125°C | 5 |
| Output current (25°C) | IOUT | 145.5 | 150 | 154.5 | mA | VOUT>1.5V, VEN=3.3V, RISET=10.6kΩ, SOT23-6, TA=TJ=25°C | 6 |
| Output current (full temp) | IOUT | 142.5 | 150 | 157.5 | mA | VOUT>1.5V, VEN=3.3V, RISET=10.6kΩ, SOT23-6, -40°C to 125°C | 6 |
| Enable current | IEN | 0.5 | 1 | mA | VEN=3.3V, RISET=16kΩ | 5 | |
| OUT pin breakdown voltage | VBD_OUT | 40 | V | VEN=0V | 5 | ||
| Current setting reference voltage | VISET | 1 | V | 5 | |||
| Output current | IOUT | 10 | mA | VOUT=0.8V, VEN=3.3V, RISET=160kΩ | 5 | ||
| EN UVLO threshold, rising | VUVLO | 1.9 | 2.4 | V | VEN rising | 6 | |
| EN UVLO threshold, falling | VUVLO | 1.2 | 1.7 | V | VEN falling | 6 | |
| Sufficient supply voltage on EN pin | VEN | 2.9 | 5.5 | V | 10mA≤IOUT≤150mA, VOUT=2V, SOT23-6 | 6 | |
| Output current limit | IOUT_LIMIT | 295 | mA | RISET=GND, VEN=3.3V | 6 | ||
| Minimum required headroom voltage | VHR | 1.2 | V | IOUT=150mA, SOT23-6 | 6 | ||
| EN pin enabling time | tON | 10 | μs | VOUT>1.5V, VEN=3.3V, RISET=16kΩ | 6 | ||
| Thermal roll off threshold | TRO | 145 | °C | Current decreasing slope rate: -0.6%/°C (Note 8) | 6 | ||
| Thermal shutdown threshold | TSD | 170 | °C | Temperature rising (Note 8) | 6 | ||
| Thermal shutdown hysteresis | TSD_HY | 30 | °C | Temperature falling (Note 8) | 6 | ||
| Maximum enable voltage | VEN(MAX) | 6 | V | IS32LT3178 | 5 | ||
| Maximum output current | IOUT(MAX) | 250 | mA | 5 | |||
| Maximum output voltage | VOUT(MAX) | 44 | V | 5 | |||
| Reverse voltage between all terminals | VR | 0.5 | V | 5 | |||
| Power dissipation | PD(MAX) | 0.77 | W | SOT23-6 | 5 | ||
| Maximum junction temperature | TJMAX | 150 | °C | 5 | |||
| Storage temperature range | TSTG | -65 | 150 | °C | 5 | ||
| Operating temperature range | TA=TJ | -40 | 125 | °C | 5 | ||
| ESD HBM | ESD (HBM) | -2 | 2 | kV | 5 | ||
| ESD CDM | ESD (CDM) | -750 | 750 | V | 5 | ||
| Thermal resistance junction to ambient | θJA | 130 | °C/W | SOT23-6, 4 layer standard test PCB based on JESD 51-2A | 5 |
CAD (KiCad official)
- Symbol:
IS32LT3178-STLA3-TR - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
is32lt3178-stla3-tr-etched.step/is32lt3178-stla3-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);is32lt3178-stla3-tr.step/is32lt3178-stla3-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: INTEGRATED SILICON SOLUTION INC datasheet (22 pp, sha256
78ab75e127b35486, retrieved 2026-10-30, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).