MCP1703T-1802E/CB Microchip Integrated Circuit (SOT23 (3-Pin)) In Stock
Microchip MCP1703T-1802E/CB is a 250mA LDO linear regulator with a fixed 1.8V output and ultra-low 2µA quiescent current in a compact SOT-23A-3 package. It supports input voltages up to 16V with 0.9V dropout and is ideal for battery-powered IoT and embedded systems.
- Manufacturer
- Microchip
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1703T-1802E/CB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2452(MOQ 10)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 1.8V output with 250mA maximum output current for stable low-voltage MCU and sensor rails
- Ultra-low 2µA quiescent current extends battery life in portable and IoT applications
- Wide input voltage range of 2.7V to 16V with 0.9V dropout voltage in a compact SOT-23A-3 package
Applications
The MCP1703T-1802E/CB is well-suited for battery-powered IoT devices, wireless sensor nodes, and portable consumer electronics requiring a regulated 1.8V supply. Its ultra-low quiescent current of 2µA makes it an excellent choice for sleep-mode circuits and energy-harvesting systems. The device also fits industrial microcontroller boards and handheld instruments where space and power efficiency are critical.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23A-3 |
| YTEOL | 8 |
| Adjustability | FIXED |
| Dropout Voltage1-Nom | 0.9V |
| Input Voltage Absolute-Max | 18V |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 2.7V |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.07182% |
| Load Regulation-Max | 0.045% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.2A |
| Output Voltage1-Max | 1.836V |
| Output Voltage1-Min | 1.764V |
| Output Voltage1-Nom | 1.8V |
| 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 |
| 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 | Taiwan, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum output current the MCP1703T-1802E/CB can deliver?
The MCP1703T-1802E/CB provides up to 250mA of output current at a fixed 1.8V output, making it suitable for powering microcontrollers, RF modules, and sensor arrays in space-constrained PCB designs.
How does the MCP1703T-1802E/CB perform in low-power battery applications?
With only 2µA quiescent current, the MCP1703T-1802E/CB is ideal for sleep-mode battery circuits; a standard 1000mAh lithium cell loses less than 1% capacity over 6 months from regulator standby alone, enabling multi-year coin-cell lifetimes.
Which input voltage range does the MCP1703T-1802E/CB support?
The regulator accepts input voltages from 2.7V to 16V, with a maximum absolute rating of 18V. The 0.9V dropout voltage means input must stay at least 2.7V for proper 1.8V regulation across the 250mA load range.
When is MCP1703T-1802E/CB a better choice than a switching regulator for a 1.8V rail?
For loads below 100mA where board area is under 10 mm² and noise-sensitive analog circuits require a ripple-free 1.8V rail, the MCP1703T-1802E/CB outperforms switching regulators by eliminating switching noise and requiring only 2 external capacitors for stability.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $0.7530 | $7.53 |
| 25+ | $0.6860 | $17.15 |
| 50+ | $0.6840 | $34.20 |
| 100+ | $0.5600 | $56.00 |
| 500+ | $0.2493 | $124.65 |
| 1000+ | $0.2452 | $245.20 |
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