MCP1703T-2802E/CB Microchip Integrated Circuit (SOT23 (3-Pin)) In Stock
MCP1703T-2802E/CB is a 250 mA fixed LDO regulator with 2.8 V output, accepting up to 16 V input in a compact SOT-23-3 package. Typical dropout voltage is 0.625 V, making it ideal for low-dropout power supply designs in portable and embedded systems.
- Manufacturer
- Microchip
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1703T-2802E/CB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1765(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 250 mA output current with 2.8 V fixed output voltage
- Input voltage range up to 16 V with 18 V absolute maximum
- Low dropout voltage of 0.625 V typical at full load
- Compact SOT-23-3 (3-pin) package for space-constrained designs
- RoHS-compliant, Pb-free construction
Applications
MCP1703T-2802E/CB is widely used in portable consumer electronics, IoT sensors, and battery-powered embedded systems requiring a stable 2.8 V rail from a higher input supply. Its wide input voltage range of up to 16 V and low quiescent current make it a good fit for always-on microcontroller, RF module, and sensor power domains.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23A-3 |
| YTEOL | 8 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.975V |
| Dropout Voltage1-Nom | 0.625V |
| Input Voltage Absolute-Max | 18V |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 3.775V |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.10269% |
| Load Regulation-Max | 0.07% |
| 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 | 2.856V |
| Output Voltage1-Min | 2.744V |
| Output Voltage1-Nom | 2.8V |
| 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 |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Voltage Tolerance-Max | 2% |
| ## MCP1703T-2802E/CB Alternates Showing results | Image |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Taiwan, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the dropout voltage of MCP1703T-2802E/CB at full rated load?
The typical dropout voltage is 0.625 V at 250 mA output current, with a maximum of 0.975 V under worst-case conditions. This low dropout allows the device to maintain 2.8 V output even when the input supply drops close to that level.
Can MCP1703T-2802E/CB be used to power an RF module directly from a lithium-ion battery?
Yes. A single-cell lithium-ion battery ranging from 3.0 V to 4.2 V exceeds the 3.775 V minimum input and stays well below the 16 V maximum, so MCP1703T-2802E/CB can cleanly regulate 2.8 V output at up to 250 mA for most RF module power requirements.
What is the package and footprint for MCP1703T-2802E/CB on a compact PCB?
The device is housed in a SOT-23-3 (3-pin) surface-mount package, which occupies a very small board area and is suitable for high-density PCB layouts. It supports standard reflow soldering and is compatible with automated SMT assembly processes.
How does the fixed 2.8 V output of MCP1703T-2802E/CB compare to an adjustable LDO for production bill-of-materials simplicity?
Fixed-output LDOs like MCP1703T-2802E/CB eliminate the two resistor divider needed by adjustable regulators, reducing the BOM to a single 3-pin device and lowering assembly cost and error risk. The 2.8 V fixed rail suits common sensor and wireless IC supply rails directly.
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