High-Voltage LDOs from Microchip

The MCP179X LDOs were designed for use in applications requiring continuous operation at high input voltages, such as 12V automotive and 24V industrial applications. The built-in load-dump protection feature isolates the voltage transients often found in these types of applications, particularly those in the automotive market. All of this, combined with ceramic output capacitor stability and a low quiescent current of just 70 uA, enables more compact, power-efficient and reliable designs.

Example automotive applications include instrumentation lighting, power windows and locks, and stereo systems. High-voltage industrial applications include security systems, fire alarms, thermostat controls and sensors, among others.

Users can choose between the simple 3-pin MCP1790 LDO or the full-featured 5-pin MCP1791 LDO, which offers shutdown and power-good functionality. Both are available in thermally efficient SOT-223 and DDPAK packages.