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Contents

README

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MCP100T-450I

Microchip · Supervisor and Reset ICs · SOT-23

MCP100T-450I from Microchip, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 RST output Active-low push-pull reset output (MCP100 family). Driven low whenever VDD is below the 4.5 V trip point and held low for ~350 ms after VDD recovers. VOL ≤ 0.6 V at IOL = 8.5 mA (VDD > VTRIPMIN); VOH ≥ VDD-0.7 V at IOH = 3 mA. Connect to the MCU MCLR / RESET pin.
2 VDD power_in Positive supply and monitored input. Operating range 1.0 V to 5.5 V (absolute max 7.0 V). This is also the voltage sensed against the internal 4.5 V trip threshold. A 0.1 µF bypass capacitor placed close to this pin is recommended to reject supply transients.
3 VSS power_in Device ground reference. Tie to the system ground plane.

Key specifications

Parameter Value
Manufacturer Microchip
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • MCP100T-450I/TT
  • MCP100-450I/TO

CAD (KiCad official)

  • Symbol: MCP100T-450I
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mcp100t-450i-etched.step / mcp100t-450i-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mcp100t-450i.step / mcp100t-450i.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip datasheet (16 pp, sha256 8a82829aca925473, retrieved 2026-08-17, tier: manufacturer)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF