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LM317L 데이터시트(PDF) 1 Page - ON Semiconductor |
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LM317L 데이터시트(HTML) 1 Page - ON Semiconductor |
1 / 12 page © Semiconductor Components Industries, LLC, 2005 October, 2005 − Rev. 8 1 Publication Order Number: LM317L/D LM317L 100 mA Adjustable Output, Positive Voltage Regulator The LM317L is an adjustable 3−terminal positive voltage regulator capable of supplying in excess of 100 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 them essentially blow−out proof. The LM317L 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 LM317L can be used as a precision current regulator. Features • Pb−Free Packages are Available • Output Current in Excess of 100 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 • Standard 3−Lead Transistor Package • Eliminates Stocking Many Fixed Voltages Simplified Application * Cin is required if regulator is located an appreciable ** distance from power supply filter. ** CO is not needed for stability, however, ** it does improve transient response. Since IAdj is controlled to less than 100 mA, the error associated with this term is negligible in most applications. LM317L Vin Vout R1 240 R2 Adjust IAdj Cin* 0.1 mF + C O** 1.0 mF Vout + 1.25 V 1 ) R2 R1 ) IAdj R2 ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 4 of this data sheet. http://onsemi.com LOW CURRENT THREE−TERMINAL ADJUSTABLE POSITIVE VOLTAGE REGULATOR TO−92 Z SUFFIX CASE 29 Pin 1. Adjust 2. Vout 3. Vin 3 1 2 SOIC−8 D SUFFIX CASE 751 1 8 Pin 1. Vin 2. Vout 3. Vout 4. Adjust 5. N.C. 6. Vout 7. Vout 8. N.C. http://onsemi.com |
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