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MIC5205-4.0YM5-TR

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Microchip Tech Linear Voltage Regulators (LDO), SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MIC5205-4.0YM5-TR

Microchip Tech · Linear Voltage Regulators (LDO) · SOT-23-5

MIC5205-4.0YM5-TR from Microchip Tech, in a SOT-23-5. 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 +2.5V to +16V (absolute maximum -20V to +20V); a 1 µF capacitor to GND is advised if there are more than 10 inches of wire to the AC filter capacitor or a battery is the source.
2 GND power_in Ground.
3 EN input CMOS-compatible enable/shutdown input where logic-high (≥2.0V) enables, logic-low (≤0.4V) or open shuts down the regulator, and it may be tied directly to IN if not needed.
4 BYP passive Reference bypass pin to which an external 470 pF capacitor to GND can be connected to reduce output noise, and it may be left open.
5 OUT power_out Regulated 4.0V output, guaranteed 150 mA, requiring an output capacitor of at least 1.0 µF (2.2 µF when CBYP is used) to GND for stability.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOT-23-5
Category Power Supply Chip
Pins 5

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply Input Voltage (absolute max) VIN -20 20 V 3
Enable Input Voltage (absolute max) VEN -20 20 V 3
Supply Input Voltage (operating) VIN 2.5 16 V 3
Output Voltage Accuracy VO -1 1 % Variation from specified VOUT; TJ = +25°C 3
Output Voltage Accuracy (full temp) VO -2 2 % Variation from specified VOUT; -40°C < TJ < +125°C 3
Line Regulation ΔVO/VO 0.004 0.012 %/V VIN = VOUT + 1V to 16V 3
Line Regulation (full temp) ΔVO/VO 0.05 %/V VIN = VOUT + 1V to 16V; -40°C < TJ < +125°C 3
Load Regulation ΔVO/VO 0.02 0.2 % IL = 0.1 mA to 150 mA, Note 2 3
Load Regulation (full temp) ΔVO/VO 0.5 % IL = 0.1 mA to 150 mA, Note 2; -40°C < TJ < +125°C 3
Dropout Voltage VIN, VO 10 50 mV IL = 100 µA 3
Dropout Voltage (full temp) VIN, VO 70 mV IL = 100 µA; -40°C < TJ < +125°C 3
Dropout Voltage VIN, VO 110 150 mV IL = 50 mA 3
Dropout Voltage (full temp) VIN, VO 230 mV IL = 50 mA; -40°C < TJ < +125°C 3
Dropout Voltage VIN, VO 140 250 mV IL = 100 mA 3
Dropout Voltage (full temp) VIN, VO 300 mV IL = 100 mA; -40°C < TJ < +125°C 3
Dropout Voltage VIN, VO 165 275 mV IL = 150 mA 3
Dropout Voltage (full temp) VIN, VO 350 mV IL = 150 mA; -40°C < TJ < +125°C 3
Quiescent Current (shutdown) IGND 0.01 1 µA VEN ≤ 0.4V (shutdown) 3
Quiescent Current (shutdown, full temp) IGND 5 µA VEN ≤ 0.18V (shutdown) 3
Ground Pin Current IGND 80 125 µA VEN ≥ 2.0V, IL = 100 µA 4
Ground Pin Current (full temp) IGND 150 µA VEN ≥ 2.0V, IL = 100 µA; -40°C < TJ < +125°C 4
Ground Pin Current IGND 350 600 µA IL = 50 mA 4
Ground Pin Current (full temp) IGND 800 µA IL = 50 mA; -40°C < TJ < +125°C 4
Ground Pin Current IGND 600 1000 µA IL = 100 mA 4
Ground Pin Current (full temp) IGND 1500 µA IL = 100 mA; -40°C < TJ < +125°C 4
Ground Pin Current IGND 1300 1900 µA IL = 150 mA 4
Ground Pin Current (full temp) IGND 2500 µA IL = 150 mA; -40°C < TJ < +125°C 4
Current Limit ILIMIT 320 500 mA VOUT = 0V 4
Enable Input Logic-Low Voltage VIL 0.4 V Regulator shutdown 4
Enable Input Logic-Low Voltage (full temp) VIL 0.18 V Regulator shutdown; -40°C < TJ < +125°C 4
Enable Input Logic-High Voltage VIH 2 V Regulator enabled 4
Enable Input Current (low) IIL 0.01 -1 µA VIL ≤ 0.4V 4
Enable Input Current (low, full temp) IIL -2 µA VIL ≤ 0.18V 4
Enable Input Current (high) IIH 2 5 20 µA VIL = 2.0V 4
Enable Input Current (high, full temp) IIH 25 µA VIL = 2.0V 4
Junction Operating Temperature Range TJ -40 125 °C 5
Storage Temperature Range TS -65 150 °C 5
Lead Temperature 260 °C Soldering, 5s 5
Output Voltage Temperature Coefficient ΔVO/ΔT 40 ppm/°C Note 1 3
Ripple Rejection PSRR 75 dB Frequency = 100 Hz, IL = 100 µA 4
Thermal Regulation ΔVO/ΔPD 0.05 %/W Note 5 4
Output Noise eNO 260 nV/√Hz IL = 50 mA, CL = 2.2 µF, 470 pF from BYP to GND 4
Thermal Resistance Junction-to-Ambient SOT-23-5 θJA 220 °C/W Note 2 5
Thermal Resistance Junction-to-Case SOT-23-5 θJC 130 °C/W 5

CAD (KiCad official)

  • Symbol: MIC5205-4.0YM5-TR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: mic5205-4-0ym5-tr-etched.step / mic5205-4-0ym5-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mic5205-4-0ym5-tr.step / mic5205-4-0ym5-tr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Microchip Tech datasheet (20 pp, sha256 52c88e6fc146fcc5, retrieved 2026-10-23, tier: manufacturer)
  • 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