LM1117数据手册集成电路（IC）的线性+开关稳压器规格书PDF

描述 Description

The LM1117 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.

特性 Features

• For a newer drop-in alternative, see the TLV1117
• Available in 1.8 V, 2.5 V, 3.3 V, 5 V, and Adjustable Versions
• Space-saving SOT-223 and WSON packages
• Current limiting and thermal protection
• Output current: 800 mA
• Line regulation: 0.2% (maximum)
• Load regulation: 0.4% (maximum)
• Temperature range:
• LM1117: 0°C to 125°C
• LM1117I: −40°C to 125°C