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MIC37100-3.3WS
Public Made by Adomby adom
Microchip Tech Linear Voltage Regulators (LDO), SOT-223. 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
markdownMIC37100-3.3WS
Microchip Tech · Linear Voltage Regulators (LDO) · SOT-223
MIC37100-3.3WS from Microchip Tech, in a SOT-223. 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 | Supply input; operating range is +2.25V to +6V (absolute maximum 0V to +6.5V). |
| 2 | GND | power_in | Ground; the TAB is also connected to GND. |
| 3 | OUT | power_out | Regulator output, fixed 3.3V for the -3.3 variant, requiring an output capacitor of 10µF or greater for stability with ceramics. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOT-223 |
| 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 | % | 10mA | 4 | |
| Output Voltage accuracy over line/load | VOUT | -2 | 2 | % | 10mA ≤ IOUT ≤ 1A, VOUT + 1V ≤ VIN ≤ 6V | 4 | |
| Line Regulation | 0.06 | 0.5 | % | IOUT = 10mA, VOUT + 1V ≤ VIN ≤ 6V | 4 | ||
| Load Regulation | 0.2 | 1 | % | VIN = VOUT + 1V, 10mA ≤ IOUT ≤ 1A | 4 | ||
| Dropout Voltage | VDO | 125 | 200 | mV | IOUT = 100mA, ∆VOUT = -1% | 4 | |
| Dropout Voltage | VDO | 210 | 350 | mV | IOUT = 500mA, ∆VOUT = -1% | 4 | |
| Dropout Voltage | VDO | 250 | 400 | mV | IOUT = 750mA, ∆VOUT = -1% | 4 | |
| Dropout Voltage | VDO | 280 | 500 | mV | IOUT = 1A, ∆VOUT = -1% | 4 | |
| Ground Current | IGND | 650 | µA | IOUT = 100mA, VIN = VOUT + 1V | 4 | ||
| Ground Current | IGND | 3.5 | mA | IOUT = 500mA, VIN = VOUT + 1V | 4 | ||
| Ground Current | IGND | 6.7 | mA | IOUT = 750mA, VIN = VOUT + 1V | 4 | ||
| Ground Current | IGND | 11 | 25 | mA | IOUT = 1A, VIN = VOUT + 1V | 4 | |
| Current Limit | IOUT(lim) | 1.6 | 2.5 | A | VOUT = 0V, VIN = VOUT + 1V | 4 | |
| Output Voltage Temp. Coefficient | ∆VOUT/∆T | 40 | ppm/°C | 4 | |||
| Enable Input Voltage logic low (off) | VEN | 0.8 | V | logic low (off) | 4 | ||
| Enable Input Voltage logic high (on) | VEN | 2.25 | V | logic high (on) | 4 | ||
| Supply Voltage (absolute maximum) | VIN | 0 | 6.5 | V | 4 | ||
| Enable Voltage (absolute maximum) | VEN | 6.5 | V | 4 | |||
| Lead Temperature | 260 | °C | soldering, 5 sec. | 4 | |||
| Storage Temperature | Ts | -65 | 150 | °C | 4 | ||
| Supply Voltage (operating) | VIN | 2.25 | 6 | V | 4 | ||
| Enable Voltage (operating) | VEN | 0 | 6 | V | 4 | ||
| Junction Temperature | TJ | -40 | 125 | °C | 4 |
CAD (KiCad official)
- Symbol:
MIC37100-3.3WS - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223 (KiCad packages3D, STEP)
- 3D model files:
mic37100-3-3ws-etched.step/mic37100-3-3ws-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mic37100-3-3ws.step/mic37100-3-3ws.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (15 pp, sha256
fbead12005bfe8d9, retrieved 2026-10-24, 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).