MCP1790-3002E/DB Microchip Integrated Circuit (SOT223 (3-Pin)) In Stock
MCP1790-3002E/DB is a fixed 3.0 V LDO linear voltage regulator with 70 mA output current, 6 V to 30 V input range, and 0.7 V typical dropout in a 4-pin SOT-223 package. Designed for high-input-voltage industrial and automotive regulation applications.
- Manufacturer
- Microchip
- Package
- SOT223 (3-Pin)
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- MCP1790-3002E/DB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7913(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP1790-3002E/DB?
- Fixed 3.0 V output with ±2.5% accuracy over temperature
- Wide input voltage range from 6 V to 30 V with 48 V absolute maximum
- Low dropout voltage of 0.7 V typical at 70 mA output
- 70 mA continuous output current capability
- SOT-223 4-pin package with exposed pad for improved thermal dissipation
- Internal overcurrent and thermal shutdown protection
What is MCP1790-3002E/DB used for?
MCP1790-3002E/DB is used to generate a stable 3.0 V supply for microcontrollers and sensors in industrial equipment powered from 12 V or 24 V rails. Its wide 30 V input range makes it compatible with automotive 12 V battery systems and transient voltage spikes without additional clamping. It also serves as a local post-regulator in power distribution boards where regulated outputs feed low-power logic circuits.
What are the specifications of MCP1790-3002E/DB?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-223-3 |
| 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-G4 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.036% |
| Load Regulation-Max | 0.0135% |
| 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 | 3.075V |
| Output Voltage1-Min | 2.925V |
| Output Voltage1-Nom | 3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG |
| Peak Reflow Temperature (Cel) | 260 |
| 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 | 2.3mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Voltage Tolerance-Max | 2.5% |
| Package | SOT223 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Taiwan, Thailand |
Where can I find the MCP1790-3002E/DB datasheet?
MCP1790-3002E/DB Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP1790-3002E/DB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range of MCP1790-3002E/DB and how wide a supply can it handle?
MCP1790-3002E/DB accepts input voltages from 6 V to 30 V continuously, with an absolute maximum rating of 48 V. This wide range allows it to regulate from unregulated 12 V or 24 V industrial supplies while tolerating load dump transients common in automotive and factory environments.
How much power does MCP1790-3002E/DB dissipate when running from a 24 V supply at 70 mA output?
At 24 V input and 3.0 V output, the voltage drop across MCP1790-3002E/DB is 21 V. At the maximum 70 mA load, the device dissipates approximately 1.47 W, so the SOT-223 package's exposed tab must be soldered to a copper pour or heatsink to keep junction temperature below 125 °C.
For a sensor node on a 12 V automotive rail, why is MCP1790-3002E/DB preferable to a switching regulator?
MCP1790-3002E/DB requires no inductor, produces no switching noise, and has simpler EMC filtering, which is critical for sensor analog front-ends sensitive to 100 kHz–10 MHz switching harmonics. Its fixed 3.0 V output with ±2.5% accuracy and internal protection make it a lower-BOM-cost solution when the 70 mA current limit and linear dissipation are acceptable.
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