MCP101T-315I/TT Microchip Integrated Circuit (Other) In Stock
Microchip MCP101T-315I/TT is a single-channel voltage supervisor and microcontroller reset IC with a fixed 3.0 V to 3.15 V threshold range, housed in a 3-pin SOT-23 package. It monitors the VCC rail and asserts an active-low RESET output during power-on and undervoltage conditions, ensuring reliable system startup in 3.3 V embedded designs.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP101T-315I/TT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1511(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 undervoltage threshold of 3.0 V to 3.15 V for 3.3 V rail monitoring
- Active-low open-drain RESET output for direct MCU reset pin connection
- Single-channel voltage supervisor with no external components required
- 3-pin SOT-23-3 ultra-compact SMD package
- Pb-free and RoHS-compliant (JESD-609 e3)
- -40°C to +125°C industrial operating temperature range
Applications
MCP101T-315I/TT is used to supervise the 3.3 V supply rail of microcontrollers, FPGAs, and DSPs, asserting reset during power-up ramp and undervoltage brownout events to prevent erratic code execution. Its compact SOT-23-3 form factor makes it popular in space-constrained embedded modules, industrial sensors, and consumer electronics that require dependable power-on reset without discrete RC circuits.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-3 |
| Factory Lead Time | 9Weeks |
| 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) | 3V |
| 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 | +3.08V |
| 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 | 8542.39.00.60 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
At what supply voltage does MCP101T-315I/TT assert the reset signal to protect a 3.3 V microcontroller?
MCP101T-315I/TT asserts its active-low RESET output when VCC drops below the 3.0 V to 3.15 V threshold window. For a 3.3 V MCU, this means the reset line is held active during power-up until the supply is firmly established above 3.15 V, preventing false code execution during brownouts.
How does MCP101T-315I/TT simplify board design compared to a discrete RC reset circuit?
Discrete RC reset networks are sensitive to supply ramp rate and temperature, producing variable reset pulse widths. MCP101T-315I/TT monitors VCC directly with a precision 3.0 V to 3.15 V threshold comparator and generates a clean, guaranteed active-low reset pulse, eliminating the need for external resistors, capacitors, and calculations.
Is the 3-pin SOT-23 package of MCP101T-315I/TT suitable for high-density PCBs with limited supervisor placement space?
Yes. The SOT-23-3 package body is approximately 1.3 mm × 2.9 mm, one of the smallest commercially available for standalone supervisor ICs. It requires only 3 connection points — VCC, GND, and RESET — and can be placed immediately adjacent to the MCU reset pin on densely routed boards.
Can MCP101T-315I/TT be used in industrial temperature environments such as factory automation controllers?
Yes. MCP101T-315I/TT is rated for the industrial temperature range of -40°C to +125°C and carries the I-grade designation in its MPN suffix. It is qualified for sustained operation in factory automation panels, outdoor sensor enclosures, and motor drive auxiliary circuits subject to wide ambient temperature swings.
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