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)

MCP1811屬于集成電路（IC） > 線性 + 開關(guān)穩(wěn)壓器。微芯科技股份有限公司制造生產(chǎn)的MCP1811穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負(fù)載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個最小量，并且在工作時會將輸入端的任何多余電壓轉(zhuǎn)換為熱量。對于大多數(shù)應(yīng)用而言，雖然這種穩(wěn)壓器的效率低于開關(guān)模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應(yīng)用。