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TS317LCS bảng dữ liệu(PDF) 1 Page - Taiwan Semiconductor Company, Ltd |
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TS317LCS bảng dữ liệu(HTML) 1 Page - Taiwan Semiconductor Company, Ltd |
1 / 6 page TS317L 3-Terminal Adjustable Output Positive Voltage Regulator Output Voltage Range From 1.25V to 37V Output Current up to 100mA General Description The TS317L is adjustable 3-terminal positive voltage regulator capable of supplying in excess of 100mA over an output voltage range of 1.25 V to 37 V. This voltage regulator is exceptionally easy to use and require 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. Besides replacing fixed regulators, the TS317L is useful in a wide variety of other applications. Since the regulator is “floating “ and sees only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input-to-output differential is not exceeded. Also, it makes an especially simple adjustable switching regulator, a programmable output regulator, or by connecting a fixed resistor between the adjustment and output, the TS317L can be used as a precision current regulator. Supplyies with electronic shutdown can be achieved by clamping the adjustment terminal to ground which programs the output to 1.25V where most loads draw little current. The TS317L is offered in 3-pin TO-92 and SOP-8 package. Features Output current up to 100mA Output Adjustable between 1.25 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 Output voltage offered in 4% tolerance Ordering Information Part No. Operating Temp. Package TS317LCS SOP-8 TS317LCT -20 ~ +125 oC TO-92 Standard Application Vout = 1.25 V * (1 + R2 / R1 ) + Iadjj * R2 Since IAdj is controlled to less than 100 µA, the error associated with this term is negligible in most applications A common ground is required between the input and the output voltages. The input voltage must remain typically 2.0V above the output voltage even during the low point on the Input ripple voltage. * = 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. Pin assignment: 1. Input 2. Output 3. Output 4. Adjust 5. N/C 6. Output 7. Output 8. N/C Pin assignment: 1. Adjustable 2. Output 3. Input TS317L 1-6 2003/12 rev. A |
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