Description

The MCP1811X/12X devices are 150 mA (MCP1811X) and 300 mA (MCP1812X) 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 MCP1811B/12B can be shut down for 5 nA (typical) supply current draw.

The MCP1811X/12X family comes in nine standard fixed output voltage versions: 1V, 1.2V, 1.8V, 2.0V, 2.5V, 2.8V, 3.0V, 3.3V and 4.0V.

Features

• Ultra-Low Quiescent Current: 250 nA (typical)

• Ultra-Low Shutdown Supply Current:

- 10 nA typical for MCP1811A/12A

- 5 nA typical for MCP1811B/12B

• Output Current Capability:

- 150 mA for MCP1811X (Note 1)

- 300 mA for MCP1812X

• Input Voltage Range: 1.8V to 5.5V

• Standard Output Voltages (VR): 1V, 1.2V, 1.8V, 2.0V,

2.5V, 2.8V, 3.0V, 3.3V and 4.0V; for any other voltage

options (between 1V to 4V), please contact your local

sales office

• Stable with Ceramic Output Capacitor:

1.0 μF (MCP1811X) and 2.2 μF (MCP1812X)

• Overcurrent Protection

• Output Discharge (Shutdown mode,

SHDN = GND) MCP1811A/12A

• Available for the Following Packages:

- 3-Lead SOT-23

- 3-Lead SC70

- 4-Lead 1 x 1 mm UDFN

- 5-Lead SOT-23

- 5-Lead SC70

Applications

• Energy Harvesting

• Long-Life, Battery-Powered Applications

• Smart Cards

• Ultra-Low Consumption “Green” Products

• Wearable Electronics (smart watches, bracelets, headsets)

• Medical Devices (hearing aids)