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MIC2954-02WS-TR
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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Contents
README
markdownMIC2954-02WS-TR
Microchip Tech · Linear Voltage Regulators (LDO) · SOT-223-3
MIC2954-02WS-TR 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 | Supply input; the datasheet's operating range is +2.0V to +30V, with absolute maximum −20V to +60V (positive transients limited to <10ms and <1% duty cycle). |
| 2 | GND | power_in | Ground; the SOT-223 ground is listed as pin 2 together with the TAB, which is the same ground connection. |
| 3 | OUT | power_out | Regulator output of the fixed 5V MIC2954-02 version, guaranteed to 250mA output current. |
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 (TJ = 25°C) | VOUT | 4.975 | 5 | 5.025 | V | VIN = 6V; IL = 1mA; CL = 2.2µF; TJ = 25°C | 4 |
| Output Voltage (full temperature) | VOUT | 4.94 | 5 | 5.06 | V | VIN = 6V; IL = 1mA; CL = 2.2µF; -40°C ≤ TJ ≤ +125°C | 4 |
| Output Voltage over load range | VOUT | 4.93 | 5 | 5.07 | V | 1mA ≤ IL ≤ 250mA | 4 |
| Output Voltage Temperature Coefficient | ∆VOUT/∆T | 20 | 100 | ppm/°C | 4 | ||
| Line Regulation (TJ = 25°C) | ∆VOUT/VOUT | 0.03 | 0.1 | %/V | VIN = 6V to 26V | 4 | |
| Line Regulation (full temperature) | ∆VOUT/VOUT | 0.03 | 0.2 | %/V | VIN = 6V to 26V; -40°C ≤ TJ ≤ +125°C | 4 | |
| Load Regulation (TJ = 25°C) | ∆VOUT/VOUT | 0.04 | 0.16 | %/V | IL = 1 to 250mA | 4 | |
| Load Regulation (full temperature) | ∆VOUT/VOUT | 0.04 | 0.2 | %/V | IL = 1 to 250mA; -40°C ≤ TJ ≤ +125°C | 4 | |
| Dropout Voltage (TJ = 25°C) | VIN, VOUT | 60 | 100 | mV | IL = 1mA; TJ = 25°C | 4 | |
| Dropout Voltage (full temperature) | VIN, VOUT | 60 | 150 | mV | IL = 1mA; -40°C ≤ TJ ≤ +125°C | 4 | |
| Dropout Voltage (TJ = 25°C) | VIN, VOUT | 220 | 250 | mV | IL = 50mA; TJ = 25°C | 4 | |
| Dropout Voltage (full temperature) | VIN, VOUT | 220 | 420 | mV | IL = 50mA; -40°C ≤ TJ ≤ +125°C | 4 | |
| Dropout Voltage (TJ = 25°C) | VIN, VOUT | 250 | 300 | mV | IL = 100mA; TJ = 25°C | 4 | |
| Dropout Voltage (full temperature) | VIN, VOUT | 250 | 450 | mV | IL = 100mA; -40°C ≤ TJ ≤ +125°C | 4 | |
| Dropout Voltage (TJ = 25°C) | VIN, VOUT | 375 | 450 | mV | IL = 250mA; TJ = 25°C | 4 | |
| Dropout Voltage (full temperature) | VIN, VOUT | 375 | 600 | mV | IL = 250mA; -40°C ≤ TJ ≤ +125°C | 4 | |
| Ground Pin Current (TJ = 25°C) | IGND | 140 | 200 | µA | IL = 1mA; TJ = 25°C | 4 | |
| Ground Pin Current (full temperature) | IGND | 140 | 300 | µA | IL = 1mA; -40°C ≤ TJ ≤ +125°C | 4 | |
| Ground Pin Current (TJ = 25°C) | IGND | 0.5 | 1 | mA | IL = 50mA; TJ = 25°C | 4 | |
| Ground Pin Current (full temperature) | IGND | 0.5 | 2 | mA | IL = 50mA; -40°C ≤ TJ ≤ +125°C | 4 | |
| Ground Pin Current (TJ = 25°C) | IGND | 1.7 | 2.5 | mA | IL = 100mA; TJ = 25°C | 4 | |
| Ground Pin Current (full temperature) | IGND | 1.7 | 3.5 | mA | IL = 100mA; -40°C ≤ TJ ≤ +125°C | 4 | |
| Ground Pin Current (TJ = 25°C) | IGND | 5 | 9 | mA | IL = 250mA; TJ = 25°C | 4 | |
| Ground Pin Current (full temperature) | IGND | 5 | 12 | mA | IL = 250mA; -40°C ≤ TJ ≤ +125°C | 4 | |
| Ground Pin Current at Dropout | IGND(DO) | 180 | 300 | µA | VIN = 4.5V | 4 | |
| Current Limit | ILIMIT | 750 | 800 | mA | VOUT = 0V | 5 | |
| Thermal Regulation | ∆VOUT/∆PD | 0.05 | 0.2 | %/W | Note 12: 200mA load pulse at VIN = 20V, t = 10ms | 5 | |
| Reference Voltage (TJ = 25°C) | 1.22 | 1.235 | 1.25 | V | VIN = 6V; IL = 1mA; CL = 2.2µF; TJ = 25°C | 5 | |
| Reference Voltage (full temperature) | 1.2 | 1.235 | 1.26 | V | VIN = 6V; IL = 1mA; CL = 2.2µF; -40°C ≤ TJ ≤ +125°C | 5 | |
| Reference Voltage (operating range) | 1.19 | 1.27 | V | Note 13: VREF ≤ VOUT ≤ (VIN, 1V), 2.3V ≤ VIN ≤ 30V, 100µA < IL ≤ 250mA, TJ ≤ TJ(max) | 5 | ||
| Feedback Pin Bias Current (TJ = 25°C) | 20 | 40 | nA | VIN = 6V; IL = 1mA; TJ = 25°C | 5 | ||
| Feedback Pin Bias Current (full temperature) | 20 | 60 | nA | VIN = 6V; IL = 1mA; -40°C ≤ TJ ≤ +125°C | 5 | ||
| Feedback Pin Bias Current Temperature Coefficient | 0.1 | 40 | nA/°C | 5 | |||
| Output Leakage Current (TJ = 25°C) | 0.01 | 1 | µA | VOH = 30V; TJ = 25°C | 5 | ||
| Output Leakage Current (full temperature) | 0.01 | 2 | µA | VOH = 30V; -40°C ≤ TJ ≤ +125°C | 5 | ||
| Output Low Voltage (TJ = 25°C) | 150 | 250 | mV | VIN = 4.5V; IOL = 400µA; TJ = 25°C | 5 | ||
| Output Low Voltage (full temperature) | 150 | 400 | mV | VIN = 4.5V; IOL = 400µA; -40°C ≤ TJ ≤ +125°C | 5 | ||
| Lower Threshold Voltage | 75 | 95 | 140 | mV | Note 14 | 5 | |
| Input Logic Voltage low (on) | 1.3 | V | 5 | ||||
| Input Logic Voltage low (on) | 0.7 | V | 5 | ||||
| Input Logic Voltage high (off) | 2 | V | 5 | ||||
| Shutdown Pin Input Current (TJ = 25°C) | 30 | 50 | µA | VSHDN = 2.4V; TJ = 25°C | 5 | ||
| Shutdown Pin Input Current (full temperature) | 30 | 100 | µA | VSHDN = 2.4V; -40°C ≤ TJ ≤ +125°C | 5 | ||
| Shutdown Pin Input Current (TJ = 25°C) | 450 | 600 | µA | VSHDN = 30V; TJ = 25°C | 5 | ||
| Shutdown Pin Input Current (full temperature) | 450 | 750 | µA | VSHDN = 30V; -40°C ≤ TJ ≤ +125°C | 5 | ||
| Regulator Output Current in Shutdown (TJ = 25°C) | 3 | 10 | µA | Note 15: VSHDN ≥ 2V, VIN ≤ 30V, VOUT = 0, FB connected to TAP; TJ = 25°C | 5 | ||
| Regulator Output Current in Shutdown (full temperature) | 3 | 20 | µA | Note 15: VSHDN ≥ 2V, VIN ≤ 30V, VOUT = 0, FB connected to TAP; -40°C ≤ TJ ≤ +125°C | 5 | ||
| Supply Voltage (continuous/transient, absolute maximum) | VIN | -20 | 60 | V | 4 | ||
| Feedback Voltage (absolute maximum) | VFB | -1.5 | 26 | V | 4 | ||
| Shutdown Input Voltage (absolute maximum) | VSHDN | -0.3 | 30 | V | 4 | ||
| Error Output Voltage (absolute maximum) | VERR | -0.3 | 30 | V | 4 | ||
| Lead Temperature (absolute maximum) | 260 | °C | Soldering, 5 sec. | 4 | |||
| Storage Temperature (absolute maximum) | Ts | -65 | 150 | °C | 4 | ||
| Supply Voltage (operating range) | VIN | 2 | 30 | V | 4 | ||
| Junction Temperature (operating range) | TJ | -40 | 125 | °C | 4 | ||
| Thermal Resistance, junction-to-case, SOT-223 | θJC | 15 | °C/W | Note 5 | 6 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | The MIC2954-07BM/-08BM (8-pin surface-mount package) has the following thermal characteristics when mounted on a single layer copper-clad printed circuit | 11 |
CAD (KiCad official)
- Symbol:
MIC2954-02WS-TR - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223-3 (KiCad packages3D, STEP)
- 3D model files:
mic2954-02ws-tr-etched.step/mic2954-02ws-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mic2954-02ws-tr.step/mic2954-02ws-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (15 pp, sha256
2625bfe2bb4285f6, retrieved 2026-11-05, 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).