MCP101T-300I/TT Microchip Integrated Circuit (Other) In Stock
Microchip MCP101T-300I/TT is a single-channel voltage supervisor IC in a compact SOT-23-3 package. It monitors supply rails at a fixed 3.0 V threshold and asserts a reset output to protect microcontroller startup. Operating from -40°C to +85°C, it ensures reliable power sequencing in space-constrained designs.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP101T-300I/TT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.0700(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.0 V supervisory threshold with accurate ±1.5% tolerance for reliable reset assertion
- Ultra-compact SOT-23-3 package occupying minimal PCB area for space-constrained boards
- Wide -40°C to +85°C industrial temperature range for robust field deployments
- Active-low open-drain reset output compatible with 3.3 V and 5 V logic systems
- Low quiescent current consumption enabling use in battery-powered and low-power designs
Applications
The MCP101T-300I/TT is used to supervise microcontroller power rails in embedded systems where clean power-on reset is critical for firmware integrity. It fits into handheld instruments, industrial sensors, and consumer electronics where board space is limited and a discrete reset circuit must be eliminated. Its fixed 3.0 V threshold makes it a drop-in solution for 3.3 V-regulated systems requiring guaranteed startup reset.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-3 |
| Factory Lead Time | 19Weeks |
| YTEOL | 8 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TO-236 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.06mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1V |
| Supply Voltage-Nom (Vsup) | 2.85V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +2.93V |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
At what voltage threshold does the MCP101T-300I/TT assert its reset output and how accurate is that threshold?
The MCP101T-300I/TT trips at a fixed 3.0 V supervisory threshold with ±1.5% accuracy across temperature. This tight tolerance ensures the reset signal is asserted before the supply falls below the microcontroller's minimum operating voltage, preventing corrupted firmware execution during brownout events.
What reset output type does the MCP101T-300I/TT provide and how long does it hold reset after power is restored?
It provides an active-low open-drain reset output that remains asserted for a minimum 140 ms timeout after the supply voltage recovers above the 3.0 V threshold. This delay allows oscillators and regulators to stabilize before releasing the microcontroller from reset, preventing false starts in systems with slow-rising power rails.
How does the MCP101T-300I/TT fit into a battery-powered IoT sensor design with a 3.3 V rail?
The device draws only a few microamps of quiescent current, making it suitable for battery-powered IoT nodes where energy budget is tight. Its SOT-23-3 footprint (approximately 1.6 mm × 2.9 mm) replaces discrete RC-delay reset circuits, freeing up 3 to 5 additional components and reducing BOM cost in sensor designs running from a single Li-AA cell.
When would the MCP101T-270I/TT be chosen over the MCP101T-300I/TT for a supervisory circuit?
The MCP101T-270I/TT monitors at a 2.7 V threshold, making it the preferred alternative when the host MCU or FPGA specifies a minimum operating voltage of 2.7 V. The MCP101T-300I/TT is selected for 3.0 V-minimum devices; choosing the wrong threshold could leave the processor running with an under-voltage supply for up to 300 mV before reset asserts.
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