LM317集成電路（IC）的穩(wěn)壓器-線性規(guī)格書PDF中文資料

LM317屬于集成電路（IC）的穩(wěn)壓器-線性。由安森美半導體公司制造生產的LM317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換為熱量。對于大多數應用而言，雖然這種穩(wěn)壓器的效率低于開關模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應用。

The LM317 is an adjustable 3?terminal positive voltage regulator capable of supplying in excess of 1.5 A over an output voltage range of 1.2 V to 37 V. This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage. Further, it employs internal current limiting, thermal shutdown and safe area compensation, making it essentially blow?out proof.

The LM317 serves a wide variety of applications including local, on card regulation. This device can also be used to make a programmable output regulator, or by connecting a fixed resistor between the adjustment and output, the LM317 can be used as a precision current regulator.

Features

? Output Current in Excess of 1.5 A

? Output Adjustable between 1.2 V and 37 V

? Internal Thermal Overload Protection

? Internal Short Circuit Current Limiting Constant with Temperature

? Output Transistor Safe?Area Compensation

? Floating Operation for High Voltage Applications

? Eliminates Stocking many Fixed Voltages

? Available in Surface Mount D2PAK?3, and Standard 3?Lead Transistor Package

? NCV Prefix for Automotive and Other Applications Requiring

Unique Site and Control Change Requirements; AEC?Q100

Qualified and PPAP Capable

? These are Pb?Free Devices