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Contents

README

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MIC2287YD5-TR

Microchip Tech · Pre-ordered MCUs · TSOT-23-5

MIC2287YD5-TR from Microchip Tech, in a TSOT-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 SW passive Switch node, the internal power bipolar transistor collector, rated -0.3V to 34V with 2A maximum switch current.
2 GND power_in Ground return for the regulator.
3 FB input Output voltage sense node with a 95mV feedback voltage; connect the LED cathode here and set LED current with a resistor to ground.
4 EN input Enable input where logic high enables the regulator and logic low shuts it down, with turn-on threshold 1.5V and turn-off threshold 0.4V.
5 VIN power_in Supply input for internal circuitry, 2.5V to 10V.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package TSOT-23-5
Category Embedded Processors & Controllers
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 Voltage Range VIN 2.5 10 V 3
Under Voltage Lockout VUVLO 1.8 2.1 2.4 V 3
Quiescent Current IVIN 2.5 5 mA VFB > 200mV, (not switching) 3
Shutdown Current ISD 0.1 1 µA VEN = 0V 3
Feedback Voltage (±5%) VFB 90 95 100 mV 3
Feedback Input Current IFB -450 nA VFB = 95mV 3
Line Regulation 0.5 1 % 3V ≤ VIN ≤ 5V 3
Load Regulation 0.5 2 % 5mA ≤ IOUT ≤ 20mA 3
Maximum Duty Cycle DMAX 85 90 % 3
Switch Current Limit ISW 750 mA 3
Switch Saturation Voltage VSW 450 mV ISW = 0.5A 3
Switch Leakage Current ISW 0.01 5 µA VEN = 0V, VSW = 10V 3
Enable Threshold Turn On VEN 1.5 V TURN ON 3
Enable Threshold Turn Off VEN 0.4 V TURN OFF 3
Enable Pin Current IEN 20 40 µA VEN = 10V 3
Oscillator Frequency fSW 1.05 1.2 1.35 MHz 3
Overtemperature Threshold TJ 150 °C 3
Overtemperature Shutdown Hysteresis TJ 10 °C 3
Supply Voltage (absolute max) VIN 12 V 3
Switch Voltage VSW -0.3 34 V 3
Enable Pin Voltage VEN -0.3 V -0.3 to VIN 3
FB Voltage VFB 6 V 3
Switch Current ISW 2 A 3
Ambient Storage Temperature TS -65 150 °C 3
ESD Rating 2 kV Human body model 3
Operating Supply Voltage VIN 2.5 10 V 3
Junction Temperature Range TJ -40 125 °C 3

CAD (KiCad official)

  • Symbol: MIC2287YD5-TR
  • Footprint: Package_TO_SOT_SMD:TSOT-23-5
  • 3D model: TSOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: mic2287yd5-tr-etched.step / mic2287yd5-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mic2287yd5-tr.step / mic2287yd5-tr.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (10 pp, sha256 de67eae3c76d1222, retrieved 2026-10-23, 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