The MCP1812 low drop-out regulators from Microchip Technology are 300 mA low dropout (LDO) linear regulators that provide high-current and low-output voltages while maintaining an ultra-low 250 nA of quiescent current during device operation. In addition, the MCP1812 can be shut down for 5 nA (typical) supply current draw. The MCP1812 family comes in nine standard fixed output-voltage versions: 1 V, 1.2 V, 1.8 V, 2.0 V, 2.5 V, 2.8 V, 3.0 V, 3.3 V, and 4.0 V. The 150/300 mA output current capability, combined with the low output-voltage capability, make the MCP1812 device family a good choice for new ultra-long-life LDO applications that have high-current demands, but require ultra-low power consumption during sleep periods.

The MCP1812 is stable with ceramic output capacitors that inherently provide lower output noise and reduce the size and cost of the entire regulator solution. Only 2.2 μF for MCP1812 of output capacitance is needed to assure the stability of the system with a low noise output.

The MCP1812 can be paired with other ultra-low current devices, such as Microchip's nanoWatt eXtreme Low Power (XLP) technology devices, for a complete ultra-low-power solution. These devices are ideal for any low-powered, long-life applications, including smart cards, energy harvesting, wearables, and hearing aids.