LM317MDT集成电路（IC）的线性+开关稳压器规格书PDF中文资料

500 mA Adjustable Output, Positive Voltage Regulator

The LM317M is an adjustable three−terminal positive voltage regulator capable of supplying in excess of 500 mA 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 LM317M serves a wide variety of applications including local, on−card regulation. This device also makes an especially simple adjustable switching regulator, a programmable output regulator, or by connecting a fixed resistor between the adjustment and output, the LM317M can be used as a precision current regulator.

Features

• Output Current in Excess of 500 mA

• Output Adjustable between 1.2 V and 37 V

• Internal Thermal Overload Protection

• Internal Short Circuit Current Limiting

• Output Transistor Safe−Area Compensation

• Floating Operation for High Voltage Applications

• Eliminates Stocking Many Fixed Voltages

• Pb−Free Packages are Available