LM1117

800mA 低压降线性稳压器

The is a low dropout voltage regulator with a dropout of 1.2 V at 800 mA of load current.

The LM1117 is available in an adjustable version, which can set the output voltage from 1.25 to 13.8 V with only two external resistors. In addition, it is available in five fixed voltages, 1.8 V, 2.5 V, 3.3 V, and 5 V.

The LM1117 offers current limiting and thermal shutdown. Its circuit includes a Zener trimmed bandgap reference to assure output voltage accuracy to within ±1%.

A minimum of 10-µF tantalum capacitor is required at the output to improve the transient response and stability.

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Available in 1.8 V, 2.5 V, 3.3 V, 5 V,

and Adjustable Versions

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Space-Saving SOT-223 and WSON Packages

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Current Limiting and Thermal Protection

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Output Current 800 mA

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Line Regulation 0.2% Maximum

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Load Regulation 0.4% Maximum

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Temperature Range

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LM1117: 0°C to 125°C

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LM1117I: –40°C to 125°C