The MCP1701AT-1802I/CB: A Benchmark in Low-Dropout Performance

In the realm of power management, efficiency and reliability are paramount. The Microchip MCP1701AT-1802I/CB stands out as a premier 180mA low-dropout (LDO) voltage regulator engineered to deliver exceptional performance for a wide array of battery-powered and always-on applications. This device exemplifies the critical balance between ultra-low quiescent current and robust output stability, making it an ideal choice for modern electronic designs where power conservation is crucial.

A defining characteristic of this LDO is its remarkably low quiescent current of just 1.6µA (typical). This minimal internal operating current is a game-changer for applications that spend a significant amount of time in standby or sleep modes. By consuming almost negligible power itself, the MCP1701AT-1802I/CB maximizes the operational life of the battery, which is essential for devices like IoT sensors, wearable electronics, and portable medical devices.

Despite its ultra-low power draw, this regulator does not compromise on performance. It is designed to provide a fixed, precise 2.8V output from an input voltage range of 2.7V to 8.0V. The low dropout voltage—typically 180mV at full 180mA load—ensures that the regulator continues to function correctly even as the input voltage decays close to the output level, a common scenario in discharging battery scenarios. This feature is critical for extracting every last bit of energy from a power source.

Furthermore, the MCP1701AT-1802I/CB is built for reliability. It includes key protection features such as internal current limit and thermal shutdown, safeguarding both the regulator and the downstream circuitry from fault conditions. Its stable operation with low-ESR ceramic output capacitors simplifies the bill of materials and reduces overall design footprint. Housed in a compact SOT-23-3 package, it offers a powerful power management solution in a minimal board space.

ICGOODFIND: The Microchip MCP1701AT-1802I/CB is an exceptional LDO regulator that sets a high standard for efficiency. Its unparalleled combination of ultra-low quiescent current, a wide input voltage range up to 8V, and robust 180mA output current makes it an indispensable component for designers striving to achieve long battery life and high reliability in space-constrained, power-sensitive applications.

Keywords: LDO Voltage Regulator, Ultra-Low Quiescent Current, 180mA Output, Battery-Powered Applications, Thermal Shutdown Protection.