The MCP1827 and MCP1827S support input voltages from 2.3V to 6.0V and output voltages from 0.8V to 5.0V, with a full-current dropout voltage of only 330 mV (typical). They feature a quiescent current of just 120 µA, and are stable with a ceramic output-capacitor to help reduce design costs and size. The 5-pin MCP1827 LDO includes power-good and shutdown functions, and is available in fixed or adjustable output-voltage versions. The 3-pin MCP1827S is a more cost-effective alternative for those applications that do not require power-good and shutdown functions.
Applications for the new LDOs include powering high-performance embedded processors and controllers as found in computer and consumer applications such as motherboards, game consoles, LCD projectors, high-end televisions and digital set-top boxes. In addition, they are ideal for industrial and power-supply applications such as switch-mode power supply post-regulators and automated control.
The MCP1827 is available in 5-pin DDPAK and TO-220 packages while the smaller MCP1827S LDO comes in 3-pin DDPAK and TO-220 packages.