MCP1703-3302E/DB Microchip Integrated Circuit (SOT223 (3-Pin)) In Stock
The MCP1703-3302E/DB is a low dropout linear voltage regulator providing a fixed 3.3 V ±2% output at up to 250 mA from a 4.025 V to 16 V input, featuring 525 mV typical dropout voltage in a SOT-223 package for robust thermal performance.
- Manufacturer
- Microchip
- Package
- SOT223 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1703-3302E/DB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2400(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide 4.025 V to 16 V input range supports diverse supply rails including automotive 12 V systems
- Low dropout voltage of 525 mV typical at 250 mA output enables efficient operation close to output rail
- SOT-223 package with exposed tab provides superior thermal dissipation up to 125°C junction temperature
Applications
The MCP1703-3302E/DB is used in industrial equipment, automotive accessories, and embedded systems requiring a stable 3.3 V supply from higher-voltage sources such as 12 V battery rails. Its wide input voltage range and robust thermal packaging make it ideal for point-of-load regulation in motor controller boards, sensor interfaces, and communication modules operating over -40°C to +125°C.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-223-3 |
| Factory Lead Time | 7Weeks |
| YTEOL | 8 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.725V |
| Dropout Voltage1-Nom | 0.525V |
| Input Voltage Absolute-Max | 18V |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 4.025V |
| JESD-30 Code | R-PDSO-G4 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.1185525% |
| Load Regulation-Max | 0.0825% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.25A |
| Output Voltage1-Max | 3.366V |
| Output Voltage1-Min | 3.234V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG |
| Packing Method | TUBE |
| 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 |
| Voltage Tolerance-Max | 2% |
| ## MCP1703-3302E/DB Alternates Showing results | Image |
| Package | SOT223 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Taiwan, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP1703-3302E/DB:
Regulator, 3.3V, 0.725V Dropout, CMOS, PDSO3
suggested
suggested
suggested
suggested
Frequently Asked Questions
What is the maximum input voltage and dropout voltage for MCP1703-3302E/DB?
The MCP1703-3302E/DB accepts input voltages from 4.025 V up to 16 V absolute maximum 18 V, with a typical dropout voltage of 525 mV and maximum 725 mV at 250 mA. This allows efficient regulation from a 12 V automotive rail down to a clean 3.3 V output for sensitive electronics.
How much output current can MCP1703-3302E/DB supply and over what temperature range?
The regulator delivers up to 250 mA continuous output current with a 3.3 V ±2% regulated output. It operates reliably across a -40°C to +125°C temperature range, making it suitable for harsh industrial and automotive environments where wide thermal excursions are common.
What thermal advantage does the SOT-223 package provide compared to smaller LDO packages?
The SOT-223 package includes an exposed metal tab that directly conducts heat to the PCB copper pour, achieving a thermal resistance of approximately 50°C/W with adequate copper area, allowing the MCP1703-3302E/DB to sustain 250 mA loads without an external heatsink in most applications operating below 85°C ambient.
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