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MIC5239-3.3YS
Public Made by Adomby adom
Microchip Tech Linear Voltage Regulators (LDO), SOT-223-3. 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
markdownMIC5239-3.3YS
Microchip Tech · Linear Voltage Regulators (LDO) · SOT-223-3
MIC5239-3.3YS from Microchip Tech, in a SOT-223-3. 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 | IN | power_in | Power supply input, operating range +2.3V to +30V (absolute maximum -20V to +32V). |
| 2 | GND | power_in | Ground pin, internally connected in common with the leadframe (heatsink tab) for thermal conduction. |
| 3 | OUT | power_out | Regulated output (3.3V fixed for this variant), stable with a ceramic or tantalum output capacitor of 3.3 µF minimum, continuous 500 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOT-223-3 |
| Category | Power Management ICs |
| Pins | 3 |
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 Voltage Accuracy | VOUT | -1 | 1 | % | Variation from nominal VOUT, VIN = VOUT+1V, IOUT = 100 µA, TJ = +25°C | 3 | |
| Output Voltage Accuracy (over temperature) | VOUT | -2 | 2 | % | Variation from nominal VOUT, -40°C ≤ TJ ≤ +125°C | 3 | |
| Line Regulation | ΔVOUT/VOUT | 0.06 | 0.5 | % | VIN = VOUT + 1V to 30V | 3 | |
| Load Regulation | ΔVOUT/VOUT | 15 | 30 | mV | IOUT = 100 µA to 500 mA, Note 2 | 3 | |
| Dropout Voltage | ΔV | 260 | 350 | mV | IOUT = 150 mA (as flattened; 400 max over temperature) | 3 | |
| Dropout Voltage (over temperature) | ΔV | 400 | mV | IOUT = 150 mA, -40°C ≤ TJ ≤ +125°C | 3 | ||
| Ground Pin Current | IGND | 23 | 40 | µA | VEN ≥ 2.0V, IOUT = 100 µA | 3 | |
| Ground Pin Current (over temperature) | IGND | 45 | µA | VEN ≥ 2.0V, IOUT = 100 µA, -40°C ≤ TJ ≤ +125°C | 3 | ||
| Ground Pin Current | IGND | 1.3 | 5 | mA | VEN ≥ 2.0V, IOUT = 150 mA | 3 | |
| Ground Pin Current | IGND | 8.5 | 15 | mA | VEN ≥ 2.0V, IOUT = 500 mA | 3 | |
| Ground Pin Shutdown Current | IGND(SHDN) | 0.1 | 1 | µA | VEN ≤ 0.6V, VIN = 30V | 3 | |
| Short-Circuit Current | ISC | 850 | 1200 | mA | VOUT = 0V | 3 | |
| Enable Input Low Voltage | VIL | 0.6 | V | Regulator off | 4 | ||
| Enable Input High Voltage | VIH | 2 | V | Regulator on | 4 | ||
| Enable Input Current | IIN | -1 | 1 | µA | VEN = 0.6V, regulator off | 4 | |
| Enable Input Current (over temperature) | IIN | -2 | 0.01 | 2 | µA | VEN = 0.6V, regulator off | 4 |
| Enable Input Current | IIN | 0.15 | 1 | µA | VEN = 2.0V, regulator on | 4 | |
| Enable Input Current (over temperature) | IIN | 2 | µA | VEN = 2.0V, regulator on | 4 | ||
| Enable Input Current | IIN | 0.5 | 2.5 | µA | VEN = 30V, regulator on | 4 | |
| Enable Input Current (over temperature) | IIN | 5 | µA | VEN = 30V, regulator on | 4 | ||
| Supply Voltage (absolute maximum) | VIN | -20 | 32 | V | 3 | ||
| Enable Input Voltage (absolute maximum) | VEN | -0.3 | 32 | V | 3 | ||
| ESD Rating (SOT-223) | 2 | kV | Human body model: 1.5 kΩ in series with 100 pF | 3 | |||
| Supply Voltage (operating) | VIN | 2.3 | 30 | V | 3 | ||
| Enable Input Voltage (operating) | VEN | 0 | 30 | V | 3 | ||
| Junction Temperature Range | TJ | -40 | 125 | °C | 4 | ||
| Storage Temperature Range | TS | -65 | 150 | °C | 4 | ||
| Lead Temperature | 260 | °C | Soldering, 5 sec. | 4 | |||
| Thermal Resistance, SOT-223 3-Ld | θJA | 50 | °C/W | 4 | |||
| Output Noise | en | 160 | µVRMS | 10 Hz to 100 kHz, VOUT = 3.0V, CL = 3.3 µF | 3 | ||
| Dropout Voltage | ΔV | 50 | mV | IOUT = 100 µA | 3 | ||
| Dropout Voltage | ΔV | 350 | mV | IOUT = 500 mA | 3 | ||
| FLAG Output Low Threshold | VFLG | 94 | % | % of VOUT | 4 | ||
| FLAG Output High Threshold | VFLG | 95 | % | % of VOUT | 4 | ||
| FLAG Output Low Voltage | VOL | 150 | mV | VIN = VOUT(NOM), 0.12VOUT, IOL = 200 µA | 4 | ||
| FLAG Output Leakage Current | ILEAK | 0.1 | µA | VOH = 30V | 4 |
CAD (KiCad official)
- Symbol:
MIC5239-3.3YS - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223-3 (KiCad packages3D, STEP)
- 3D model files:
mic5239-3-3ys-etched.step/mic5239-3-3ys-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mic5239-3-3ys.step/mic5239-3-3ys.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (22 pp, sha256
0a031538de2d8984, retrieved 2026-10-26, tier: manufacturer) - 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).