10PCS MCP1700/1701/1703 LDO Voltage Regulator ICs SOT89
10PCS MCP1700/1701/1703 LDO Voltage Regulator ICs SOT89
10PCS MCP1700 / MCP1701 / MCP1703 Series LDO Voltage Regulator ICs – SOT89 Package
Keep your circuits running at the exact voltage they need with this convenient 10-piece assortment of Microchip MCP1700 / MCP1701 / MCP1703 series Low Dropout (LDO) linear voltage regulators. Housed in compact SOT89 surface-mount packages, these ICs are ideal for engineers, hobbyists, and electronics repair technicians who need reliable, low-quiescent-current regulation for battery-powered devices, microcontroller boards, and embedded systems.
Product Highlights
- Wide Voltage Selection: Includes popular output variants — 1.8V, 3.0V, 3.3V, and 5.0V — covering the most common logic and microcontroller supply rails.
- Ultra-Low Quiescent Current: Microchip's MCP17xx series is engineered for minimal standby current draw, making it an excellent choice for battery-operated and low-power designs.
- Low Dropout Voltage: Maintains stable output regulation even when input voltage is only slightly above the target output, maximising battery runtime.
- SOT89 Package: Surface-mount footprint suitable for compact PCB layouts; easy to hand-solder or reflow.
- 10-Piece Assortment: Spans multiple part numbers — MCP1701AT-5002I/MB, MCP1703T-3302E, MCP1703T-1802E, MCP1700T-5002E, MCP1701AT-1802I, MCP1700T-3002E — giving you flexibility across multiple projects.
- Broad Application Range: Perfect for Arduino/Raspberry Pi power stages, IoT sensor nodes, wireless modules, portable electronics, and DIY prototyping.
Part Number Reference
| Part Number | Output Voltage | Package |
|---|---|---|
| MCP1701AT-5002I/MB | 5.0V | SOT89 |
| MCP1703T-3302E | 3.3V | SOT89 |
| MCP1703T-1802E | 1.8V | SOT89 |
| MCP1700T-5002E | 5.0V | SOT89 |
| MCP1701AT-1802I | 1.8V | SOT89 |
| MCP1700T-3002E | 3.0V | SOT89 |
Typical Applications
- Microcontroller and MCU power supply rails (3.3V, 5.0V)
- Battery-powered IoT and sensor devices
- Portable consumer electronics
- Wireless communication modules
- DIY electronics prototyping & repair
Package Contents
- 10 × MCP17xx Series LDO Voltage Regulator ICs (SOT89 package, assorted part numbers as listed above)
Made in Mainland China.
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Frequently Asked Questions
Q: What is the difference between the MCP1700, MCP1701, and MCP1703 LDO regulators?
A: All three are Microchip low-dropout linear voltage regulators in the SOT89 package, but they differ in maximum input voltage and quiescent current. The MCP1700 supports up to 6V input and offers extremely low quiescent current (~1.6µA). The MCP1701 operates up to 10V input with similarly low quiescent current. The MCP1703 handles up to 16V input, making it suited for a wider range of supply voltages. Choose based on your input voltage range and current requirements.
Q: Are these ICs compatible with Arduino, Raspberry Pi, and other development boards?
A: Yes. The 3.3V and 5.0V output variants are directly compatible with the logic-level supply requirements of Arduino, Raspberry Pi, ESP32, and most common development boards. They are widely used to create stable, clean power rails from battery or unregulated DC sources in DIY and prototyping applications.
Q: What soldering method is recommended for the SOT89 package?
A: The SOT89 is a surface-mount package that works well with both reflow soldering (using solder paste and a hot plate or oven) and careful hand soldering with a fine-tipped iron. The package's exposed pad tabs make it manageable even for experienced hobbyists. Ensure adequate thermal relief on your PCB for reliable joints.