Microchip MCP1793T-5002H/OT: A Robust 500mA High-Voltage Input LDO Voltage Regulator

In the realm of power management, efficiently regulating voltage from high input sources while maintaining stability and low noise is a persistent challenge. The Microchip MCP1793T-5002H/OT stands out as a high-performance, high-voltage input Low Dropout (LDO) linear voltage regulator engineered to meet these demanding requirements. This device is specifically designed to deliver a reliable 500mA output current from input voltages as high as 70V, making it an exceptional choice for a wide array of industrial, automotive, and telecommunications applications.

A key differentiator of the MCP1793T is its remarkably high input voltage capability. Unlike conventional LDOs, which are often limited to inputs below 30V, this regulator can handle transient voltages up to 70V, providing a critical safety margin in harsh electrical environments prone to voltage spikes and surges. This robustness is essential for applications such as 12V/24V/48V automotive and industrial systems, where the input supply can be notoriously unstable.

Despite its high-voltage operation, the MCP1793T-5002H/OT delivers a stable, precise, and clean 2.0V output. It achieves this with a low dropout voltage of just 650mV at the full 500mA load, ensuring high efficiency even when the input voltage is only slightly above the output level. The device incorporates advanced protection features, including internal current limiting and thermal shutdown, which safeguard both the regulator and the downstream circuitry from fault conditions. Furthermore, its low quiescent current and low noise output make it suitable for powering noise-sensitive analog and RF components.

Housed in a space-saving SOT-23-5 package, this LDO offers a powerful combination of high performance and board-space efficiency. Its ability to operate over a wide -40°C to +125°C junction temperature range ensures reliability in virtually any environment.

ICGOOODFIND: The Microchip MCP1793T-5002H/OT is a superior solution for designers seeking a robust, high-voltage LDO that doesn't compromise on output current or stability. Its unparalleled 70V input rating and integrated protections make it a cornerstone component for building resilient power systems in demanding applications.

Keywords: High-Voltage LDO, 500mA Output, 70V Input, Voltage Regulator, Automotive Grade.