component
MIC2951-03YMM-TR
Public Made by Adomby adom
Microchip Tech Power Management Specialized - PMIC, MSOP-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
markdownMIC2951-03YMM-TR
Microchip Tech · Power Management Specialized - PMIC · MSOP-8
MIC2951-03YMM-TR from Microchip Tech, in a MSOP-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 | OUT | power_out | Regulated output; requires at least 1.5µF capacitor to ground for stability and is tied to SNS for fixed 5V operation. |
| 2 | SNS | input | Sense input at the output end of the internal voltage divider for fixed 5V operation; not used in adjustable configuration. |
| 3 | SHDN | input | TTL-compatible shutdown/enable input where high = shutdown and low or open = enable. |
| 4 | GND | power_in | Ground. |
| 5 | ERR | output | Active-low open-collector error flag output (low = error, floating = normal) that needs an external pull-up and is rated to sink 200µA. |
| 6 | TAP | output | 3.3V/4.85V/5V tap, the output of the internal voltage divider when configured for fixed operation; not used in adjustable configuration. |
| 7 | FB | input | Feedback input taking the 1.235V reference level from the internal divider TAP (fixed operation) or from an external resistor network (adjustable configuration). |
| 8 | IN | power_in | Unregulated supply input with operating range of +2.0 to +30V, withstanding -20V reverse battery and +60V transients of limited duration. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | MSOP-8 |
| Category | Power Supply Chip |
| 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 |
|---|---|---|---|---|---|---|---|
| Output Voltage | VOUT | 4.95 | 5 | 5.05 | V | MIC295x-03/06 (±1%), TJ = 25°C | 4 |
| Output Voltage | VOUT | 4.925 | 5.075 | V | MIC295x-03/-06 (±1%), -25°C ≤ TJ ≤ +85°C | 4 | |
| Output Voltage | VOUT | 4.9 | 5.1 | V | MIC295x-03/06 (±1%), over full temperature range -40°C to +125°C | 4 | |
| Output Voltage over Load Variation | VOUT | 4.88 | 5.12 | V | MIC295x-03/-06 (±1%), 100µA ≤ IL ≤ 150mA, TJ ≤ TJ(max) | 4 | |
| Output Voltage Temperature Coefficient | 50 | 150 | ppm/°C | MIC295x-03/-06 (±1%), Note 9 | 4 | ||
| Line Regulation (25°C) | 0.04 | 0.2 | % | MIC295x-03/-06 (±1%), Notes 10, 11 | 4 | ||
| Line Regulation (full temperature) | 0.4 | % | MIC295x-03/-06 (±1%), Notes 10, 11, -40°C ≤ TJ ≤ +125°C | 4 | |||
| Load Regulation (25°C) | 0.1 | 0.2 | % | MIC295x-03/-06 (±1%), 100µA ≤ IL ≤ 150mA, Note 10 | 5 | ||
| Load Regulation (full temperature) | 0.3 | % | MIC295x-03/-06 (±1%), 100µA ≤ IL ≤ 150mA, Note 10, -40°C ≤ TJ ≤ +125°C | 5 | |||
| Dropout Voltage (25°C) | 40 | 80 | mV | MIC295x-02/-03/-05/-06, IL = 100µA, Note 12 | 5 | ||
| Dropout Voltage (full temperature) | 140 | mV | MIC295x-02/-03/-05/-06, IL = 100µA, Note 12, -40°C ≤ TJ ≤ +125°C | 5 | |||
| Dropout Voltage | 250 | 300 | mV | MIC295x-02/-03/-05/-06, IL = 100mA, Note 12 | 5 | ||
| Dropout Voltage (25°C) | 300 | 450 | mV | MIC295x-02/-03/-05/-06, IL = 150mA, Note 12 | 5 | ||
| Dropout Voltage (full temperature) | 600 | mV | MIC295x-02/-03/-05/-06, IL = 150mA, Note 12, -40°C ≤ TJ ≤ +125°C | 5 | |||
| Ground Current (25°C) | 120 | 180 | µA | MIC295x-02/-03/-05/-06, IL = 100µA | 5 | ||
| Ground Current (full temperature) | 300 | µA | MIC295x-02/-03/-05/-06, IL = 100µA, -40°C ≤ TJ ≤ +125°C | 5 | |||
| Ground Current (25°C) | 1.7 | 2.5 | mA | MIC295x-02/-03/-05/-06, IL = 100mA | 5 | ||
| Ground Current (full temperature) | 3.5 | mA | MIC295x-02/-03/-05/-06, IL = 100mA, -40°C ≤ TJ ≤ +125°C | 5 | |||
| Ground Current (25°C) | 4 | 6 | mA | MIC295x-02/-03/-05/-06, IL = 150mA | 5 | ||
| Ground Current (full temperature) | 8 | mA | MIC295x-02/-03/-05/-06, IL = 150mA, -40°C ≤ TJ ≤ +125°C | 5 | |||
| Dropout Ground Current (25°C) | 280 | 350 | µA | MIC295x-02/-03/-05/-06, VIN = 4.5V, IL = 100µA | 5 | ||
| Dropout Ground Current (full temperature) | 400 | µA | MIC295x-02/-03/-05/-06, VIN = 4.5V, IL = 100µA, -40°C ≤ TJ ≤ +125°C | 5 | |||
| Current Limit (25°C) | 300 | 400 | mA | VOUT = 0V | 6 | ||
| Current Limit (full temperature) | 450 | mA | VOUT = 0V, -40°C ≤ TJ ≤ +125°C | 6 | |||
| Thermal Regulation | 0.05 | 0.2 | %/W | Note 13 | 6 | ||
| Output Noise | 430 | µVRMS | 10Hz to 100kHz, CL = 1.5µF | 6 | |||
| Output Noise | 160 | µVRMS | 10Hz to 100kHz, CL = 200µF | 6 | |||
| Output Noise | 100 | µVRMS | 10Hz to 100kHz, CL = 3.3µF, 0.01µF bypass Feedback to Output | 6 | |||
| Reference Voltage (25°C) | 1.21 | 1.235 | 1.26 | V | MIC295x-03/06 (±1%) | 6 | |
| Reference Voltage (full temperature) | 1.2 | 1.27 | V | MIC295x-03/06 (±1%), -40°C ≤ TJ ≤ +125°C | 6 | ||
| Reference Voltage | 1.185 | 1.285 | V | MIC295x-03/-06 (±1%), Note 14 | 6 | ||
| Feedback Bias Current (25°C) | 20 | 40 | nA | 6 | |||
| Feedback Bias Current (full temperature) | 60 | nA | -40°C ≤ TJ ≤ +125°C | 6 | |||
| Reference Voltage Temperature Coefficient | 50 | ppm/°C | MIC295x-03/06 (±1%), Note 9 | 6 | |||
| Feedback Bias Current Temperature Coefficient | 0.1 | nA/°C | 6 | ||||
| Error Comparator (Flag) Output Leakage Current (25°C) | 0.01 | 1 | µA | VOH = 30V | 6 | ||
| Error Comparator (Flag) Output Leakage Current (full temperature) | 2 | µA | VOH = 30V, -40°C ≤ TJ ≤ +125°C | 6 | |||
| Error Comparator (Flag) Output Low Voltage (25°C) | 150 | 250 | mV | VIN = 4.5V, IOL = 200µA | 6 | ||
| Error Comparator (Flag) Output Low Voltage (full temperature) | 400 | mV | VIN = 4.5V, IOL = 200µA, -40°C ≤ TJ ≤ +125°C | 6 | |||
| Error Comparator (Flag) Upper Threshold Voltage | 25 | 40 | 60 | mV | Note 15 (25 mV minimum over full temperature) | 6 | |
| Error Comparator Lower Threshold Voltage (25°C) | 75 | 95 | mV | Note 15 | 6 | ||
| Error Comparator Lower Threshold Voltage (full temperature) | 140 | mV | Note 15, -40°C ≤ TJ ≤ +125°C | 6 | |||
| Error Comparator Hysteresis | 15 | mV | Note 15 | 6 | |||
| Shutdown Input Logic Voltage, High | 2 | 1.3 | V | MIC295x-03/-06 (±1%), High (regulator off) | 7 | ||
| Shutdown Input Logic Voltage, Low | 0.7 | V | MIC295x-03/-06 (±1%), Low (regulator on) | 7 | |||
| Shutdown Input Current (25°C) | 30 | 50 | µA | VSHUTDOWN = 2.4V | 7 | ||
| Shutdown Input Current (full temperature) | 100 | µA | VSHUTDOWN = 2.4V, -40°C ≤ TJ ≤ +125°C | 7 | |||
| Shutdown Input Current (25°C) | 450 | 600 | µA | VSHUTDOWN = 30V | 7 | ||
| Shutdown Input Current (full temperature) | 750 | µA | VSHUTDOWN = 30V, -40°C ≤ TJ ≤ +125°C | 7 | |||
| Regulator Output Current in Shutdown (25°C) | 3 | 10 | µA | Note 7 | 7 | ||
| Regulator Output Current in Shutdown (full temperature) | 20 | µA | Note 7, -40°C ≤ TJ ≤ +125°C | 7 | |||
| Input Supply Voltage (absolute maximum) | VIN | -20 | 60 | V | 60V limited to ≤100ms and ≤1% duty cycle; max continuous 30V | 4 | |
| Feedback Input Voltage | VFB | -1.5 | 26 | V | 4 | ||
| Shutdown Input Voltage | VSHDN | -0.3 | 30 | V | 4 | ||
| Lead Temperature | 260 | °C | soldering, 5 sec. | 4 | |||
| Storage Temperature | -65 | 150 | °C | 4 | |||
| Input Supply Voltage (operating) | VIN | 2 | 30 | V | 4 | ||
| Junction Temperature (operating) | TJ | -40 | 125 | °C | MIC2951-03 | 4 | |
| Junction-to-Ambient Thermal Resistance, MM8 (MSOP) | 250 | °C/W | MM8 (MM) package | 7 |
CAD (KiCad official)
- Symbol:
MIC2951-03YMM-TR - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
mic2951-03ymm-tr-etched.step/mic2951-03ymm-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mic2951-03ymm-tr.step/mic2951-03ymm-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (20 pp, sha256
03a63aa41e0a0fe8, retrieved 2026-10-27, 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).