MCP809T-460I/TT Microchip Integrated Circuit (SOT23 (3-Pin)) In Stock
The MCP809T-460I/TT is a single-channel voltage supervisor IC from Microchip with a fixed 4.60 V reset threshold and push-pull active-low output in a 3-pin SOT-23 package. It monitors system supply rails and holds the microprocessor in reset until voltage rises above the threshold. Designed for reliable power-on reset management in consumer, industrial, and embedded control applications.
- Manufacturer
- Microchip
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP809T-460I/TT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2750(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 4.60 V reset threshold eliminates external resistor dividers for simple integration
- Push-pull active-low RESET output drives microcontroller reset pins directly without pull-up resistors
- Single-channel voltage supervisor in a compact SOT-23-3 package for space-constrained PCBs
- RoHS-compliant lead-free SOT-23 package suitable for green manufacturing processes
- Low standby quiescent current for battery-assisted backup designs
Applications
The MCP809T-460I/TT is used to supervise 5 V supply rails in microcontroller-based embedded systems, ensuring orderly power-on reset and preventing false starts during supply ramp-up. It is well suited for industrial automation controllers, consumer appliances, and point-of-sale terminals where reliable reset management is critical to system integrity. The tiny SOT-23 package allows placement directly next to the microcontroller RESET pin to minimize PCB trace inductance.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-3 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Additional Feature | BAT BUP SW:N;MNL RST:N;OV DET:N;PW FL IP:N;PW FL IO:N;PW FL OP:N;PRG RST DLY:N;UV DET:N;WD:N;WWD:N |
| 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) | 4.35V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.96mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +4.48V |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | SOT23 (3-Pin) |
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 MCP809T-460I/TT release the reset signal to allow a microcontroller to start executing code?
The MCP809T-460I/TT has a fixed reset threshold of 4.60 V with a built-in reset timeout delay. The device releases its active-low RESET output and allows the microcontroller to begin execution only after the monitored supply rises above 4.60 V and remains stable, preventing code execution during slow or noisy supply ramp-up sequences.
How does the push-pull output of MCP809T-460I/TT differ from an open-drain reset output in practical circuit design?
A push-pull output actively drives the RESET line both high and low, eliminating the need for an external pull-up resistor and ensuring fast signal transitions on capacitively loaded reset networks. In contrast, an open-drain device relies on an external resistor to pull the line high, adding a component and potentially slowing rise times on PCBs with high parasitic capacitance exceeding 100 pF.
When sourcing a 4.60 V threshold variant, how does MCP809T-460I/TT differ from the MCP809T-475I/TT variant in application suitability?
The MCP809T-460I/TT trips at 4.60 V while the MCP809T-475I/TT trips at 4.75 V, giving designers 150 mV of margin difference when protecting 5 V rails with tighter or looser tolerance. A 4.60 V threshold is preferred when the 5 V rail sags under heavy loads toward 4.65 V, whereas 4.75 V provides a tighter guard band for systems with well-regulated supplies and ADC references sensitive to droops below 4.75 V.
Related Guides
How to Choose a Ferrite Bead for EMI Suppression Rails: Selection Guide
Compare 742792651 and related ferrite beads by impedance, current rating, DCR, package, layout, and EMI test context.
Jul 10, 2026
150141BS73100 Design Guide for 3528 Status Indicator LED Circuits
Design 3528 status indicator LED circuits with 150141BS73100: current setting, resistor sizing, polarity, optics, and sourcing checks.
Jul 10, 2026
How to Choose 150141BS73100 for Wurth 3528 SMT LED Indicator Designs
Selection guide for 150141BS73100 and Wurth 3528 SMT LED variants covering color, drive current, package fit, optics, and sourcing.
Jul 9, 2026
How to Choose EEEFT1V101AP for SMD Aluminum Electrolytic Capacitor Designs
Selection guide for EEEFT1V101AP and related Panasonic EEE-FT SMD aluminum electrolytic capacitors covering voltage, ESR, lifetime, and sourcing.
Jul 9, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.4364 | $0.44 |
| 10+ | $0.4342 | $4.34 |
| 25+ | $0.3735 | $9.34 |
| 115+ | $0.3150 | $36.23 |
| 3000+ | $0.2800 | $840.00 |
| 9000+ | $0.2750 | $2475.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”