MCP1791T-5002E/DC Microchip Integrated Circuit (SOT223 (5-Pin)) In Stock
The MCP1791T-5002E/DC is a Microchip fixed 5 V linear voltage regulator rated at 70 mA with a 6 V to 30 V input range and a maximum 1.3 V dropout voltage in a 6-pin SOT-223-5 package. It offers ±2.5% output accuracy and withstands up to 48 V absolute maximum input. Competitively priced and available in stock worldwide.
- Manufacturer
- Microchip
- Package
- SOT223 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- MCP1791T-5002E/DC Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.8300(MOQ 10)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP1791T-5002E/DC?
- Fixed 5 V output with ±2.5% accuracy from a wide 6 V to 30 V input range for robust industrial supply designs
- 70 mA output current with up to 1.3 V max dropout, suitable for bias rails powered from automotive or industrial 12 V/24 V buses
- 6-pin SOT-223-5 package with exposed tab providing enhanced thermal dissipation for continuous 70 mA operation
What is MCP1791T-5002E/DC used for?
The MCP1791T-5002E/DC is used as a bias or logic supply regulator in industrial control panels, motor drive boards, and building automation modules powered directly from 12 V or 24 V DC buses. Its 30 V input capability and SOT-223-5 thermal tab make it reliable for powering 5 V microcontroller and sensor rails in harsh environments with wide supply variations. It also suits automotive accessory electronics requiring a fixed 5 V rail from a 12 V battery source.
What are the specifications of MCP1791T-5002E/DC?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-223-5 |
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 1.3V |
| Dropout Voltage1-Nom | 0.7V |
| Input Voltage Absolute-Max | 48V |
| Input Voltage-Max | 30V |
| Input Voltage-Min | 6V |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.06% |
| Load Regulation-Max | 0.0225% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.07A |
| Output Voltage1-Max | 5.125V |
| Output Voltage1-Min | 4.875V |
| Output Voltage1-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223-5 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Voltage Tolerance-Max | 2.5% |
| Package | SOT223 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Taiwan, Thailand |
Where can I find the MCP1791T-5002E/DC datasheet?
MCP1791T-5002E/DC Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP1791T-5002E/DC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range can the MCP1791T-5002E/DC handle, and does it suit 24 V industrial systems?
The MCP1791T-5002E/DC accepts inputs from 6 V to 30 V continuously, with a 48 V absolute maximum, making it directly compatible with 12 V and 24 V industrial DC buses without any pre-regulation stage.
What is the output current rating and dropout voltage of the MCP1791T-5002E/DC?
It supplies up to 70 mA at a fixed 5 V output. The typical dropout voltage is 0.7 V and the maximum is 1.3 V, so the device regulates reliably down to a 6.3 V input under full load.
How does the SOT-223-5 package with exposed tab help manage heat in a continuous-load design?
The SOT-223-5 package includes a large exposed metal tab that connects to the PCB ground plane via solder, significantly reducing the thermal resistance to ambient. At 70 mA output and a 24 V input, the device dissipates approximately 1.3 W, which the tab helps spread efficiently.
What output accuracy does the MCP1791T-5002E/DC provide, and is that adequate for 5 V microcontroller rails?
The fixed 5 V output is guaranteed to ±2.5%, meaning the output stays within 4.875 V to 5.125 V across line, load, and temperature variations. Most 5 V microcontrollers and logic ICs tolerate a ±5% supply, so this accuracy provides comfortable margin.
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| 25+ | $0.8400 | $21.00 |
| 100+ | $0.8300 | $83.00 |
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