MCP1703T-5002E/CB Microchip Integrated Circuit (SOT23 (3-Pin)) In Stock
Microchip MCP1703T-5002E/CB is a fixed 5.0V LDO linear regulator with 250mA output and only 2µA quiescent current. Input voltage range is 5.65V to 16V with 0.33V typical dropout. Housed in SOT-23A-3 package for compact battery-powered and portable designs.
- Manufacturer
- Microchip
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1703T-5002E/CB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1600(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low 2 µA quiescent current extending battery life in always-on IoT and sensor nodes
- Fixed 5.0 V output at 250 mA with 0.33 V typical dropout voltage and 16 V maximum input
- Compact SOT-23A-3 (3-pin) package minimizing PCB footprint in space-constrained portable designs
Applications
The MCP1703T-5002E/CB is ideal for battery-powered IoT sensors, wireless modules, and handheld instruments that need a stable 5 V rail from a 9 V or 12 V source with minimal self-discharge. Its 2 µA quiescent current makes it suited for sleep-mode-heavy designs where standby power dominates the energy budget. The SOT-23A-3 footprint enables ultra-compact power sections in wearable electronics and coin-cell-backed real-time clock circuits.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23A-3 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.65V |
| Dropout Voltage1-Nom | 0.33V |
| Input Voltage Absolute-Max | 18V |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 5.65V |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.15525% |
| 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 | 5.1V |
| Output Voltage1-Min | 4.9V |
| Output Voltage1-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TO-236 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Packing Method | TR |
| 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 | 0.95mm |
| Terminal Position | DUAL |
| Voltage Tolerance-Max | 2% |
| Package | SOT23 (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 | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How low is the quiescent current of the MCP1703T-5002E/CB, and why does that matter for battery life?
The MCP1703T-5002E/CB draws only 2 µA quiescent current with no load. In a design powered by two AA batteries at 3 Ah capacity, this self-discharge alone would allow over 170 000 hours of standby, making it ideal for remote sensors and always-on IoT nodes that spend most time in sleep mode.
What is the dropout voltage of the MCP1703T-5002E/CB at 250 mA, and how does it constrain minimum input voltage?
The typical dropout voltage is 0.33 V rising to a maximum of 0.65 V at 250 mA. For a fixed 5 V output the minimum input voltage is therefore 5.65 V, meaning a 6 V or 9 V supply rail provides sufficient headroom to maintain regulation across the full 250 mA load range.
In which compact applications is the SOT-23A-3 package of the MCP1703T-5002E/CB advantageous over a larger LDO package?
The 3-pin SOT-23A-3 occupies roughly 1.6 mm x 2.9 mm on the PCB, far smaller than SOT-89 or TO-92 packages. This enables tight power sections in wearable health monitors, smart card readers, and miniature GPS trackers where every square millimeter of board space is valuable and the 250 mA current limit is sufficient.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.1600 | $0.16 |
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