MCP1811A/11B/12A/12B Ultra-Low Quiescent Current LDO Regulator for Long-Life Battery-Powered Applications Features Description Ultra-Low Quiescent Current: 250 nA (typical) The MCP1811X/12X devices are 150 mA (MCP1811X) Ultra-Low Shutdown Supply Current: and 300 mA (MCP1812X) Low Dropout (LDO) linear regulators that provide high-current and low output - 10 nA typical for MCP1811A/12A voltages while maintaining an ultra-low 250 nA of - 5 nA typical for MCP1811B/12B quiescent current during device operation. In addition, Output Current Capability: the MCP1811B/12B can be shut down for 5 nA (typical) - 150 mA for MCP1811X (Note 1) supply current draw. - 300 mA for MCP1812X The MCP1811X/12X family comes in nine standard Input Voltage Range: 1.8V to 5.5V fixed output voltage versions: 1V, 1.2V, 1.8V, 2.0V, Standard Output Voltages (V ): 1V, 1.2V, 1.8V, 2.0V, 2.5V, 2.8V, 3.0V, 3.3V and 4.0V. R 2.5V, 2.8V, 3.0V, 3.3V and 4.0V for any other voltage The 150/300 mA output current capability, combined options (between 1V to 4V), please contact your local with the low output voltage capability, make the sales office MCP1811X/12X device family a good choice for new Stable with Ceramic Output Capacitor: ultra-long life LDO applications that have high-current 1.0 F (MCP1811X) and 2.2 F (MCP1812X) demands, but require ultra-low power consumption Overcurrent Protection during Sleep periods. Output Discharge (Shutdown mode, The MCP1811X/12X devices are stable with ceramic SHDN = GND) MCP1811A/12A output capacitors that inherently provide lower output Available for the Following Packages: noise, and reduce the size and cost of the entire regulator solution. Only 1 F (2.2 F for MCP1812X) of - 3-Lead SOT-23 output capacitance is needed to assure the stability of - 3-Lead SC70 the system with a low noise output. - 4-Lead 1 x 1 mm UDFN The MCP1811X/12X family can be paired with other - 5-Lead SOT-23 ultra-low current devices, such as Microchips eXtreme - 5-Lead SC70 Low-Power (XLP) technology devices, for a complete ultra-low power solution. Applications Note 1: The MCP1811X and MCP1812X desig- Energy Harvesting nations refer to MCP1811A/11B and Long-Life, Battery-Powered Applications MCP1812A/12B, respectively. Smart Cards Ultra-Low Consumption Green Products Wearable Electronics (smart watches, bracelets, headsets) Medical Devices (hearing aids) 2018-2020 Microchip Technology Inc. DS20006088C-page 1MCP1811A/11B/12A/12B Package Types 3-Lead SOT-23/SC70 5-Lead SOT-23/SC70 4-Lead 1x1 mm UDFN GND V NC V SHDN OUT IN 43 3 5 4 EP* 1 2 5 1 2 3 V SHDN IN V V GND OUT IN Top View 12 V GND OUT * Includes Exposed Thermal Pad (see Table 3-1). DS20006088C-page 2 2018-2020 Microchip Technology Inc.