component
ETA1039S2G
Public Made by Adomby adom
ETA(钰泰) DC-DC Converters, 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
markdownETA1039S2G
ETA(钰泰) · DC-DC Converters · SOT-23-6
ETA1039S2G from ETA(钰泰), 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 | OUT | power_out | Output pin; bypass with a 22μF or larger ceramic capacitor placed closely between this pin and GND. |
| 2 | GND | power_in | Ground pin. |
| 3 | EN | input | Enable pin: drive high to enable the part and low to disable it; the datasheet specifies EN input low max 0.6V and high min 1.5V. |
| 4 | IN | power_in | Input supply voltage; bypass with a 4.7μF ceramic capacitor to GND. |
| 5 | ISET | passive | Current limit setting pin: a resistor Rset to GND sets the input peak current, and an additional resistor R1 from VIN to ISET gives a constant output current limit. |
| 6 | SW | output | Inductor connection; connect an inductor between SW and the input. SW voltage is rated -0.3V to 5.5V absolute maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ETA(钰泰) |
| Package | SOT-23-6 |
| Category | Power Management (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 |
|---|---|---|---|---|---|---|---|
| VOUT Output Voltage | VOUT | 4.97 | 5.07 | 5.17 | V | 2 | |
| Switching Frequency | 0.7 | 1 | 1.3 | MHz | 2 | ||
| EN Input Current | -1 | 0 | 1 | μA | 2 | ||
| Quiescent Current | 40 | 80 | μA | EN=IN, No load, Not switching | 2 | ||
| Shutdown Supply Current at VIN | 0.5 | 5 | μA | VEN =GND | 2 | ||
| NMOS Switch Current Limit | 2.2 | 2.8 | A | 2 | |||
| SW Voltage | -0.3 | 5.5 | V | 2 | |||
| All Other PIN Voltages | -0.3 | 5 | V | 2 | |||
| Operating Temperature Range | -40 | 85 | °C | 2 | |||
| Storage Temperature Range | -55 | 150 | °C | 2 | |||
| ESD HBM (Human Body Model) | 2 | KV | 2 | ||||
| ESD MM (Machine Model) | 200 | V | 2 | ||||
| Thermal Resistance Junction-to-Case, SOT23-6 | JC | 90 | °C/W | 2 |
CAD (KiCad official)
- Symbol:
ETA1039S2G - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
eta1039s2g-etched.step/eta1039s2g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);eta1039s2g.step/eta1039s2g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ETA(钰泰) datasheet (6 pp, sha256
ea5c8f855c2a0284, retrieved 2026-10-17, 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).