Microchip TC1185-85VCT713: A 300mA Low-Dropout Voltage Regulator Datasheet Overview

The Microchip TC1185-85VCT713 is a CMOS low-dropout (LDO) voltage regulator designed to deliver a fixed 3.3V output from an input voltage range of 2.5V to 6.0V, with a maximum output current of 300mA. This device is engineered for high-performance, battery-powered applications where extended operational life and stability are critical.

A key feature of this regulator is its exceptionally low dropout voltage, typically 85mV at 100mA load. This characteristic is vital for maximizing efficiency, as it allows the regulator to maintain a stable output voltage even when the input voltage dips very close to the output level. This is particularly advantageous in battery-powered systems, as it permits the use of nearly the entire battery discharge cycle, thereby extending run time.

The TC1185 boasts an impressively low ground current of just 50µA (typical) under full load, which further enhances its suitability for power-sensitive portable designs. This low quiescent current minimizes the regulator's own power consumption, contributing to higher overall system efficiency.

The device incorporates critical protection features to ensure system reliability. These include internal short-circuit protection and thermal shutdown, which safeguard the IC from damage in fault conditions. Furthermore, the TC1185 offers excellent line and load transient response, ensuring a stable output voltage despite fluctuations in the input supply or changes in the output current demand from the load.

Housed in a space-saving SOT-23-5 package, this LDO is an ideal solution for compact printed circuit boards. Its combination of low noise, high power supply rejection ratio (PSRR), and stability with a small, low-ESR ceramic output capacitor makes it a robust and simple-to-use component for a wide array of applications, including portable instrumentation, battery-operated devices, and wireless communication modules.

ICGOODFIND: The Microchip TC1185-85VCT713 stands out as a highly efficient and reliable power management solution, offering an optimal blend of ultra-low dropout voltage, minimal quiescent current, and robust protection features in a miniature package, making it a superior choice for modern portable electronics.

Keywords: Low-Dropout (LDO) Regulator, 300mA Output Current, Low Quiescent Current, Thermal Shutdown Protection, SOT-23-5 Package.