MCP1703AT-5002E/DBVAO Microchip Diode (SOT223 (3-Pin)) In Stock
MCP1703AT-5002E/DBVAO is a fixed 5 V LDO linear voltage regulator from Microchip in a SOT-223-3 package, accepting up to 16 V input with a typical 0.33 V dropout voltage. Maximum absolute input voltage is 18 V for robust protection. From $0.60, in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- SOT223 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1703AT-5002E/DBVAO Datasheet PDF
- Category
- Diode
- Price
- From $0.2200(MOQ 25)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP1703AT-5002E/DBVAO?
- Fixed 5 V output with typical dropout of only 0.33 V for efficient regulation at moderate load
- Wide input voltage range from 5.75 V to 16 V accommodating diverse unregulated supply rails
- Absolute maximum input voltage of 18 V providing extra margin against transients and surge events
- SOT-223-3 package with exposed thermal pad for improved heat dissipation in compact designs
What is MCP1703AT-5002E/DBVAO used for?
MCP1703AT-5002E/DBVAO is used to generate a stable 5 V rail from higher unregulated supplies in industrial sensor modules, embedded system boards, and automotive accessories. Its wide 16 V input range accommodates 12 V car battery rails with transient spikes, making it a reliable choice for in-vehicle electronics. The SOT-223 package simplifies thermal management in cost-sensitive PCB designs requiring regulated 5 V logic power.
What are the specifications of MCP1703AT-5002E/DBVAO?
| Manufacturer Package Code | SOT-223-3 |
| Factory Lead Time | 7Weeks |
| YTEOL | 19 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.65V |
| Dropout Voltage1-Nom | 0.33V |
| Input Voltage Absolute-Max | 18V |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 5.75V |
| JESD-30 Code | R-PDSO-G4 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.15375% |
| Load Regulation-Max | 0.125% |
| 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 | 5.15V |
| Output Voltage1-Min | 4.85V |
| Output Voltage1-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | AEC-Q100 |
| 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) | 30 |
| Voltage Tolerance-Max | 3% |
| ## MCP1703AT-5002E/DBVAO Alternates Showing results | Image |
| 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 MCP1703AT-5002E/DBVAO datasheet?
MCP1703AT-5002E/DBVAO Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP1703AT-5002E/DBVAO?
Compatible alternatives and drop-in replacements for MCP1703AT-5002E/DBVAO:
Frequently Asked Questions
What is the dropout voltage of MCP1703AT-5002E/DBVAO at full load and why does it matter for battery designs?
MCP1703AT-5002E/DBVAO has a typical dropout voltage of 0.33 V and a maximum dropout of 0.65 V. For a 5 V output, the input must stay above 5.65 V maximum under load, meaning a 6 V alkaline pack or 9 V supply provides comfortable margin throughout the discharge curve without losing regulation.
Can MCP1703AT-5002E/DBVAO handle a 12 V automotive power rail with load-dump transients?
Yes, MCP1703AT-5002E/DBVAO accepts a maximum input voltage of 16 V continuous and an absolute maximum of 18 V, which covers the nominal 12 V automotive rail plus typical load-dump transients. Engineers should add a transient-voltage suppressor for sustained spikes above 18 V to ensure the regulator remains protected in harsh vehicle environments.
How does the SOT-223-3 package of MCP1703AT-5002E/DBVAO aid thermal performance compared to SOT-23?
The SOT-223-3 package features a large exposed metal tab on the back that acts as a heatsink, reducing junction-to-ambient thermal resistance to approximately 50 °C/W on a standard two-layer PCB. The smaller SOT-23 package typically runs at 250 °C/W, so SOT-223 allows MCP1703AT to deliver several hundred milliamps more current before hitting the thermal shutdown threshold.
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