# MCP120T-450I/TT (Component) ## Description Supervisor Open Drain or Open Collector 1 Channel SOT-23-3 The MCP120T-450I/TT is a microcontroller supervisory (voltage reset) IC from Microchip Technology designed to monitor the system supply voltage and ensure reliable startup and operation of microcontroller-based systems. It keeps the microcontroller in the reset state until the supply voltage reaches a safe operating level and automatically asserts a reset signal if the supply voltage falls below the preset threshold, protecting the system from brown-out and power-failure conditions. The device features an open-drain active-low RESET output, a 4.375 V threshold, and is housed in a compact SOT-23-3 package, making it suitable for space-constrained embedded applications. Key Features Monitors a single supply voltage with a 4.375 V reset threshold Open-drain, active-low RESET output Holds the microcontroller in reset during power-up until VDD is stable Automatically resets the system during brown-out or power-loss events 150 ms minimum reset timeout after VDD exceeds the threshold Supports 3 V, 3.3 V, and 5 V system supervision Low operating current (typically 45 µA) Wide operating temperature range: −40°C to +85°C Compact SOT-23-3 surface-mount package Hashtags #Microchip #MCP120 #VoltageSupervisor #ResetIC #BrownOutProtection #PowerOnReset #PMIC #EmbeddedSystems #Microcontroller #SOT23 #PowerManagement #CircuitProtection ## Component Details - **Owner:** adrian95 - **Created:** 6/26/2026 - **Last Updated:** 6/26/2026 - **Visibility:** Public - **Manufacturer Part Number:** MCP120T-450I/TT - **Package or Case Code:** SOT-23 - **License:** https://creativecommons.org/licenses/by/4.0/ - **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/a5c9df673f2f3a28a3093657425d9b63a6af31f2d9c8027babfa8cdb602f01ce.pdf - **Manufacturer Name:** DRV8262QDDWRQ1 - **Part Type:** Integrated Circuit - **Symbol Style:** parametric-v1 - **Used in:** 2 projects ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Arrow](https://www.arrow.com/en/products/mcp120t-450itt/microchip-technology.html?utm_currency=USD&region=europe) | $0.4364 | 78 | | [Mouser](https://www.mouser.com/en/ProductDetail/Microchip-Technology/MCP120T-450I-TT?qs=pLxBn7goZWxoRuTQus0I%252BA%3D%3D) | $0.60 | 10K | | [TME](https://www.tme.com/us/en-us/katalog/?queryPhrase=MCP120T-450I%2FTT) | $0.559 | 3K | | [Verical](https://www.verical.com/pd/microchip-technology-processor-supervisory-circuit-MCP120T-450I-TT-565845?utm_currency=USD) | N/A | N/A | - **Part Type:** Integrated Circuits - **Sub-Type:** Logic - **MPN:** MCP120T-450I/TT - **Mount Type:** Surface Mount - **Package / Case Code:** SOT-23-5 - **Pin Count:** 3 - **Logic Function:** AND - **Compliance:** REACH ## Pins | Pin | Name | Type | |-----|------|------| | 1 | ~RST | | | 2 | VDD | | | 3 | VSS | | --- *Generated from [https://www.flux.ai/adrian95/mcp120t-450itt~n2z](https://www.flux.ai/adrian95/mcp120t-450itt~n2z)*