MIC803-26D2VM3TR Microchip Integrated Circuit (Other) In Stock
Microchip MIC803-26D2VM3TR is a 3-pin microprocessor supervisor IC with a fixed 2.6 V reset threshold in an SOT-23-3 package. It monitors supply voltage and asserts a reset signal to protect microcontrollers during power-up, brownout, or power-loss conditions. Available in tape-and-reel stock worldwide with fast delivery.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 3
- Lifecycle
- TRANSFERRED
- Datasheet
- MIC803-26D2VM3TR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MIC803-26D2VM3TR?
- Fixed 2.6 V reset threshold monitors supply rail and asserts reset during undervoltage and power-up conditions
- 3-pin SOT-23 (TO-236) package occupies minimal PCB area for single-channel microprocessor supervisory functions
- Tape-and-reel packaging supports automated high-volume SMT assembly in cost-sensitive embedded designs
What is MIC803-26D2VM3TR used for?
The MIC803-26D2VM3TR is used in microcontroller-based embedded systems to ensure clean power-on reset and brownout recovery, preventing erratic code execution during supply voltage transients. It suits IoT sensors, portable instruments, and industrial control modules where a 2.6 V reset threshold aligns with low-voltage 3.3 V rail supervision. The 3-pin SOT-23 package minimizes board space consumption in space-constrained designs requiring reliable reset supervision.
What are the specifications of MIC803-26D2VM3TR?
| Reach Compliance Code | Compliant |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G3 |
| 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, SHRINK PITCH |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.2V |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +2.63V |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the MIC803-26D2VM3TR datasheet?
MIC803-26D2VM3TR Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MIC803-26D2VM3TR?
Compatible alternatives and drop-in replacements for MIC803-26D2VM3TR:
Voltage Supervisor/Reset IC, Fixed, 1 Channel, +2.93V, PDSO3
3-Pin Microprocessor Supervisor Circuit w/ Open-Drain Reset Output
3-Pin Microprocessor Supervisor Circuit w/ Open-Drain Reset Output
3-Pin Microprocessor Supervisor Circuit w/ Open-Drain Reset Output
3-Pin Microprocessor Supervisor Circuit w/ Open-Drain Reset Output
Voltage Supervisor/Reset IC, Fixed, 1 Channel, +4.1V, PDSO3
3-Pin Microprocessor Supervisor Circuit w/ Open-Drain Reset Output
3-Pin Microprocessor Supervisor Circuit w/ Open-Drain Reset Output
Frequently Asked Questions
At what voltage threshold does the MIC803-26D2VM3TR assert a reset signal?
The MIC803-26D2VM3TR has a fixed reset threshold of 2.6 V, meaning it asserts the active-low reset output whenever the monitored supply drops below 2.6 V. This threshold is well-suited for supervising 3.3 V microcontroller supply rails in IoT nodes and embedded instruments where brownout conditions below 2.6 V can cause unpredictable code execution.
How does MIC803-26D2VM3TR ensure reliable microcontroller startup in a battery-powered embedded system?
The MIC803-26D2VM3TR holds the microcontroller's reset line low during power-up until the supply exceeds 2.6 V and remains stable, preventing the MCU from starting with insufficient supply voltage. This is critical in battery-powered systems where supply ramp rates may be slow; without a supervisor, the MCU might execute code from a random program counter position before the supply is fully established.
What PCB footprint does the MIC803-26D2VM3TR require and how does it compare to a discrete RC reset circuit?
The MIC803-26D2VM3TR fits in a 3-pin SOT-23 (TO-236) package measuring approximately 2.9 mm x 1.3 mm, which is smaller than a discrete R-C-diode reset network while providing a precise 2.6 V threshold. A discrete RC reset circuit requires 3 to 5 components with temperature-dependent timing; the MIC803-26D2VM3TR replaces all of them with a single calibrated IC, improving reliability and reducing assembly cost.
In which applications is the MIC803-26D2VM3TR's fixed 2.6 V threshold more appropriate than an adjustable supervisor?
The MIC803-26D2VM3TR's fixed 2.6 V threshold is optimal for high-volume designs where all units use the same 3.3 V supply rail and the 2.6 V brownout point is pre-qualified. Industrial sensor hubs, smart meter modules, and consumer IoT gateways benefit from the simpler 3-pin BOM with no external resistor dividers, lower unit cost compared to adjustable supervisors, and reduced PCB area on cost-sensitive boards.
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