component
MIC2954-08YM
Public Made by Adomby adom
Microchip Tech Power Management Specialized - PMIC, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MIC2954-08YM
Microchip Tech · Power Management Specialized - PMIC · SOIC-8
MIC2954-08YM from Microchip Tech, in a SOIC-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 | Regulator output; 5V fixed output when SNS and FB are strapped, or programmable from 1.24V to 29V with external resistors. |
| 2 | SNS | input | Sense input at the output end of the internal resistive divider; connect to OUT for fixed 5V operation and not used in adjustable configuration. |
| 3 | SHDN | input | Active-low shutdown input (low = enable, high = shutdown), absolute maximum -0.3V to +30V. |
| 4 | GND | power_in | Ground. |
| 5 | ERR | output | Open-collector active-low error flag output that goes low on an output undervoltage condition and needs an external pull-up (floating = normal), up to 30V. |
| 6 | TAP | output | Resistive divider tap output, approximately 1.23V with 5V on SNS; connect to FB for 5V operation and not used in adjustable configuration. |
| 7 | FB | input | Error amplifier feedback input compared to the internal 1.23V reference; connect to TAP for 5V operation or to an external divider for adjustable operation. |
| 8 | IN | power_in | Supply input, operating range +2.0V to +30V (absolute maximum -20V to +60V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOIC-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 (±1%) | VOUT | 4.95 | 5 | 5.05 | V | MIC2954-03/-08 (±1%), VIN=6V, IL=1mA, TJ=25°C | 4 |
| Output Voltage (±1%) over temperature | VOUT | 4.9 | 5.1 | V | MIC2954-03/-08 (±1%), -40°C ≤ TJ ≤ +125°C | 4 | |
| Output Voltage (±1%) over load | VOUT | 4.88 | 5 | 5.12 | V | MIC2954-03/-08 (±1%), 1mA ≤ IL ≤ 250mA | 4 |
| Output Voltage Temperature Coefficient | ΔVOUT/ΔT | 20 | 150 | ppm/°C | MIC2954-03/-08 (±1%), Note 6 | 4 | |
| Line Regulation | ΔVOUT/VOUT | 0.03 | 0.2 | %/V | MIC2954-03/-08 (±1%), VIN = 6V to 26V | 4 | |
| Line Regulation over temperature | ΔVOUT/VOUT | 0.4 | %/V | MIC2954-03/-08 (±1%), VIN = 6V to 26V, full temperature | 4 | ||
| Load Regulation | ΔVOUT/VOUT | 0.04 | 0.2 | %/V | MIC2954-03/-08 (±1%), IL = 1 to 250mA | 4 | |
| Load Regulation over temperature | ΔVOUT/VOUT | 0.3 | %/V | MIC2954-03/-08 (±1%), IL = 1 to 250mA, full temperature | 4 | ||
| Dropout Voltage | VIN, VOUT | 60 | 100 | mV | IL = 1mA | 4 | |
| Dropout Voltage | VIN, VOUT | 220 | 250 | mV | IL = 50mA | 4 | |
| Dropout Voltage | VIN, VOUT | 250 | 300 | mV | IL = 100mA | 4 | |
| Dropout Voltage | VIN, VOUT | 375 | 450 | mV | IL = 250mA | 4 | |
| Ground Pin Current | IGND | 140 | 200 | µA | IL = 1mA | 4 | |
| Ground Pin Current | IGND | 0.5 | 1 | mA | IL = 50mA | 4 | |
| Ground Pin Current | IGND | 1.7 | 2.5 | mA | IL = 100mA | 4 | |
| Ground Pin Current | IGND | 5 | 9 | mA | IL = 250mA | 4 | |
| Ground Pin Current at Dropout | IGND(DO) | 180 | 300 | µA | VIN = 4.5V, Note 10 | 4 | |
| Current Limit | ILIMIT | 750 | 800 | mA | VOUT = 0V, Note 11 | 5 | |
| Thermal Regulation | ΔVOUT/ΔPD | 0.05 | 0.2 | %/W | Note 12 | 5 | |
| Output Noise Voltage | en | 400 | µVRMS | IL = 100mA, CL = 2.2µF (10Hz to 100kHz) | 5 | ||
| Output Noise Voltage | en | 260 | µVRMS | IL = 100mA, CL = 33µF (10Hz to 100kHz) | 5 | ||
| Reference Voltage | VREF | 1.21 | 1.235 | 1.26 | V | MIC2954-03/-08 (±1%) | 5 |
| Reference Voltage over temperature | VREF | 1.2 | 1.27 | V | MIC2954-03/-08 (±1%), full temperature | 5 | |
| Reference Voltage | VREF | 1.185 | 1.285 | V | MIC2954-03/-08 (±1%), Note 13 | 5 | |
| Feedback Pin Bias Current | IFB | 20 | 40 | nA | 5 | ||
| Reference Voltage Temperature Coefficient | 50 | ppm/°C | MIC2954-03/-08 (±1%), Note 12 | 5 | |||
| Feedback Pin Bias Current Temperature Coefficient | 0.1 | nA/°C | 5 | ||||
| Error Comparator Output Leakage Current | 0.01 | 1 | µA | VOH = 30V | 5 | ||
| Error Comparator Output Low Voltage | 150 | 250 | mV | VIN = 4.5V, IOL = 400µA | 5 | ||
| Error Comparator Upper Threshold Voltage | 25 | 60 | mV | Note 14 | 5 | ||
| Error Comparator Lower Threshold Voltage | 75 | 140 | mV | Note 14 | 5 | ||
| Error Comparator Hysteresis | 15 | mV | Note 14 | 5 | |||
| Shutdown Input Logic Voltage low (on) | 1.3 | 0.7 | V | 5 | |||
| Shutdown Input Logic Voltage high (off) | 2 | V | 5 | ||||
| Shutdown Pin Input Current | 30 | 50 | µA | VSHDN = 2.4V | 5 | ||
| Shutdown Pin Input Current | 450 | 600 | µA | VSHDN = 30V | 5 | ||
| Regulator Output Current in Shutdown | 3 | 10 | µA | Note 15 | 5 | ||
| Supply Voltage (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 | 260 | °C | soldering, 5 sec. | 4 | |||
| Storage Temperature | Ts | -65 | 150 | °C | 4 | ||
| Supply Voltage (operating) | VIN | 2 | 30 | V | 4 | ||
| Junction Temperature (operating) | TJ | -40 | 125 | °C | 4 | ||
| Thermal Resistance Junction-Ambient SOIC-8 | θJA | 160 | °C/W | mounted on PCB (FR4) | 6 | ||
| Thermal Resistance Junction-Ambient SOIC-8 ceramic | θJA | 120 | °C/W | Ceramic PC board | 11 |
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:
MIC2954-08YM - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
mic2954-08ym-etched.step/mic2954-08ym-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mic2954-08ym.step/mic2954-08ym.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 2026-10-27, 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).
# MIC2954-08YM
**Microchip Tech** · Power Management Specialized - PMIC · SOIC-8
MIC2954-08YM from Microchip Tech, in a SOIC-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 | Regulator output; 5V fixed output when SNS and FB are strapped, or programmable from 1.24V to 29V with external resistors. |
| 2 | SNS | input | Sense input at the output end of the internal resistive divider; connect to OUT for fixed 5V operation and not used in adjustable configuration. |
| 3 | SHDN | input | Active-low shutdown input (low = enable, high = shutdown), absolute maximum -0.3V to +30V. |
| 4 | GND | power_in | Ground. |
| 5 | ERR | output | Open-collector active-low error flag output that goes low on an output undervoltage condition and needs an external pull-up (floating = normal), up to 30V. |
| 6 | TAP | output | Resistive divider tap output, approximately 1.23V with 5V on SNS; connect to FB for 5V operation and not used in adjustable configuration. |
| 7 | FB | input | Error amplifier feedback input compared to the internal 1.23V reference; connect to TAP for 5V operation or to an external divider for adjustable operation. |
| 8 | IN | power_in | Supply input, operating range +2.0V to +30V (absolute maximum -20V to +60V). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOIC-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 (±1%) | VOUT | 4.95 | 5 | 5.05 | V | MIC2954-03/-08 (±1%), VIN=6V, IL=1mA, TJ=25°C | 4 |
| Output Voltage (±1%) over temperature | VOUT | 4.9 | | 5.1 | V | MIC2954-03/-08 (±1%), -40°C ≤ TJ ≤ +125°C | 4 |
| Output Voltage (±1%) over load | VOUT | 4.88 | 5 | 5.12 | V | MIC2954-03/-08 (±1%), 1mA ≤ IL ≤ 250mA | 4 |
| Output Voltage Temperature Coefficient | ΔVOUT/ΔT | | 20 | 150 | ppm/°C | MIC2954-03/-08 (±1%), Note 6 | 4 |
| Line Regulation | ΔVOUT/VOUT | | 0.03 | 0.2 | %/V | MIC2954-03/-08 (±1%), VIN = 6V to 26V | 4 |
| Line Regulation over temperature | ΔVOUT/VOUT | | | 0.4 | %/V | MIC2954-03/-08 (±1%), VIN = 6V to 26V, full temperature | 4 |
| Load Regulation | ΔVOUT/VOUT | | 0.04 | 0.2 | %/V | MIC2954-03/-08 (±1%), IL = 1 to 250mA | 4 |
| Load Regulation over temperature | ΔVOUT/VOUT | | | 0.3 | %/V | MIC2954-03/-08 (±1%), IL = 1 to 250mA, full temperature | 4 |
| Dropout Voltage | VIN, VOUT | | 60 | 100 | mV | IL = 1mA | 4 |
| Dropout Voltage | VIN, VOUT | | 220 | 250 | mV | IL = 50mA | 4 |
| Dropout Voltage | VIN, VOUT | | 250 | 300 | mV | IL = 100mA | 4 |
| Dropout Voltage | VIN, VOUT | | 375 | 450 | mV | IL = 250mA | 4 |
| Ground Pin Current | IGND | | 140 | 200 | µA | IL = 1mA | 4 |
| Ground Pin Current | IGND | | 0.5 | 1 | mA | IL = 50mA | 4 |
| Ground Pin Current | IGND | | 1.7 | 2.5 | mA | IL = 100mA | 4 |
| Ground Pin Current | IGND | | 5 | 9 | mA | IL = 250mA | 4 |
| Ground Pin Current at Dropout | IGND(DO) | | 180 | 300 | µA | VIN = 4.5V, Note 10 | 4 |
| Current Limit | ILIMIT | | 750 | 800 | mA | VOUT = 0V, Note 11 | 5 |
| Thermal Regulation | ΔVOUT/ΔPD | | 0.05 | 0.2 | %/W | Note 12 | 5 |
| Output Noise Voltage | en | | 400 | | µVRMS | IL = 100mA, CL = 2.2µF (10Hz to 100kHz) | 5 |
| Output Noise Voltage | en | | 260 | | µVRMS | IL = 100mA, CL = 33µF (10Hz to 100kHz) | 5 |
| Reference Voltage | VREF | 1.21 | 1.235 | 1.26 | V | MIC2954-03/-08 (±1%) | 5 |
| Reference Voltage over temperature | VREF | 1.2 | | 1.27 | V | MIC2954-03/-08 (±1%), full temperature | 5 |
| Reference Voltage | VREF | 1.185 | | 1.285 | V | MIC2954-03/-08 (±1%), Note 13 | 5 |
| Feedback Pin Bias Current | IFB | | 20 | 40 | nA | | 5 |
| Reference Voltage Temperature Coefficient | | | 50 | | ppm/°C | MIC2954-03/-08 (±1%), Note 12 | 5 |
| Feedback Pin Bias Current Temperature Coefficient | | | 0.1 | | nA/°C | | 5 |
| Error Comparator Output Leakage Current | | | 0.01 | 1 | µA | VOH = 30V | 5 |
| Error Comparator Output Low Voltage | | | 150 | 250 | mV | VIN = 4.5V, IOL = 400µA | 5 |
| Error Comparator Upper Threshold Voltage | | 25 | 60 | | mV | Note 14 | 5 |
| Error Comparator Lower Threshold Voltage | | | 75 | 140 | mV | Note 14 | 5 |
| Error Comparator Hysteresis | | | 15 | | mV | Note 14 | 5 |
| Shutdown Input Logic Voltage low (on) | | | 1.3 | 0.7 | V | | 5 |
| Shutdown Input Logic Voltage high (off) | | 2 | | | V | | 5 |
| Shutdown Pin Input Current | | | 30 | 50 | µA | VSHDN = 2.4V | 5 |
| Shutdown Pin Input Current | | | 450 | 600 | µA | VSHDN = 30V | 5 |
| Regulator Output Current in Shutdown | | | 3 | 10 | µA | Note 15 | 5 |
| Supply Voltage (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 | | | | 260 | °C | soldering, 5 sec. | 4 |
| Storage Temperature | Ts | -65 | | 150 | °C | | 4 |
| Supply Voltage (operating) | VIN | 2 | | 30 | V | | 4 |
| Junction Temperature (operating) | TJ | -40 | | 125 | °C | | 4 |
| Thermal Resistance Junction-Ambient SOIC-8 | θJA | | 160 | | °C/W | mounted on PCB (FR4) | 6 |
| Thermal Resistance Junction-Ambient SOIC-8 ceramic | θJA | | 120 | | °C/W | Ceramic PC board | 11 |
## 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: `MIC2954-08YM`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `mic2954-08ym-etched.step` / `mic2954-08ym-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mic2954-08ym.step` / `mic2954-08ym.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Microchip Tech datasheet](docs/mic2954-08ym-datasheet.pdf) (15 pp, sha256 `2625bfe2bb4285f6`, retrieved 2026-10-27, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/mic2954-08ym-datasheet.pdf)