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MIC2954-08YM

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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 pack￾age) 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 (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