component
EUP3482DIR1
Public Made by Adomby adom
Eutech Microelectronics 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
markdownEUP3482DIR1
Eutech Microelectronics · DC-DC Converters · SOP-8
EUP3482DIR1 from Eutech Microelectronics, 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 | BS | power_in | High-side gate drive boost input that supplies the high-side N-channel DMOS switch drive; connect a 0.01µF or greater capacitor from SW to BS. |
| 2 | IN | power_in | Input supply pin that powers the IC and the step-down converter switches; drive with a 4.5V to 30V source and bypass to GND with a suitably large capacitor. |
| 3 | SW | power_out | Power switching output that connects the output LC filter to the load and forms the boost return for the BS capacitor. |
| 4 | GND | power_in | Ground reference pin for the IC. |
| 5 | FB | input | Output feedback input that senses the output voltage through a resistive divider; the feedback threshold is 0.923V. |
| 6 | COMP | passive | Loop compensation input; connect a series RC network from COMP to GND to compensate the regulation loop. |
| 7 | EN | input | Enable logic input that turns the regulator on when driven high and off when driven low; it must not be left floating and can be connected directly to IN (or through a resistance) for automatic startup. |
| 8 | SS | input | Soft-start control input; connect an external capacitor to program the soft-start, or leave open to use the internal soft-start function. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Eutech Microelectronics |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage (VIN) | VIN | -0.3 | 35 | V | 4 | ||
| Enable Voltage (VEN) | VEN | -0.3 | 35 | V | 4 | ||
| Switch Voltages (VSW) | VSW | -1 | V | Maximum printed as VIN +0.3V | 4 | ||
| All Other Pins | -0.3 | 6 | V | 4 | |||
| Junction Temperature | TJ | 150 | °C | 4 | |||
| Lead Temperature | 260 | °C | 4 | ||||
| Storage Temperature | TSTG | -65 | 150 | °C | 4 | ||
| Output Voltage | VOUT | 0.923 | 20 | V | Listed in Absolute Maximum Ratings section | 4 | |
| Input Voltage | VIN | 4.5 | 30 | V | 4 | ||
| Ambient Operating Temperature | TA | -40 | 85 | °C | 4 | ||
| Thermal Resistance θJA (SOP-8) | θJA | 125 | °C/W | SOP-8 | 4 | ||
| Shutdown Supply Current | 1 | 5 | µA | VEN=0V | 4 | ||
| Supply Current | 0.45 | 0.9 | mA | VFB=1V | 4 | ||
| Feedback Voltage | VFB | 0.905 | 0.923 | 0.941 | V | 4.5 ≤ VIN ≤ 30V | 4 |
| Feedback Voltage (full operating temperature range) | VFB | 0.895 | 0.923 | 0.951 | V | ● full operating temperature range | 4 |
| Upper Switch Current Limit Minimum Duty Cycle | 2.5 | 3.5 | A | Minimum Duty Cycle | 4 | ||
| Oscillation Frequency | fS | 300 | 340 | 380 | KHz | 4 | |
| EN Disable Threshold | VEN | 0.36 | 1.5 | 2 | V | ● full operating temperature range | 4 |
| EN Lockout Threshold | VEN | 2.3 | 2.5 | 2.8 | V | VEN Rising | 4 |
| EN Lockout Threshold (full operating temperature range) | VEN | 2 | 2.5 | 3 | V | ● full operating temperature range | 4 |
| Input Under Voltage Lockout Threshold | VIN | 3.8 | 4.1 | 4.4 | V | VIN Rising | 4 |
CAD (KiCad official)
- Symbol:
EUP3482DIR1 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
eup3482dir1-etched.step/eup3482dir1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);eup3482dir1.step/eup3482dir1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Eutech Microelectronics datasheet (11 pp, sha256
6f7c7f00be54f142, retrieved 2026-10-09, 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).