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LM317LBD Folha de dados(PDF) 1 Page - ON Semiconductor |
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1 / 12 page LM317L SEMICONDUCTOR TECHNICAL DATA LOW CURRENT THREE–TERMINAL ADJUSTABLE POSITIVE VOLTAGE REGULATOR ORDERING INFORMATION Order this document by LM317L/D Z SUFFIX PLASTIC PACKAGE CASE 29 Pin 1. Adjust 2. Vout 3. Vin 3 1 2 D SUFFIX PLASTIC PACKAGE CASE 751 (SOP–8*) 1 8 Pin 1. Vin 2. Vout 3. Vout 4. Adjust 5. N.C. 6. Vout 7. Vout 8. N.C. * SOP–8 is an internally modified SO–8 pack- age. Pins 2, 3, 6 and 7 are electrically common to the die attach flag. This internal lead frame modification decreases package thermal resis- tance and increases power dissipation capabili- ty when appropriately mounted on a printed cir- cuit board. SOP–8 conforms to all external di- mensions of the standard SO–8 package. Operating Temperature Range Device Package LM317LD LM317LZ LM317LBZ SOP–8 Plastic Plastic TJ = –40° to +125°C TJ = 0° to +125°C LM317LBD SOP–8 LM317L SEMICONDUCTOR TECHNICAL DATA LOW CURRENT THREE–TERMINAL ADJUSTABLE POSITIVE VOLTAGE REGULATOR ORDERING INFORMATION Order this document by LM317L/D Z SUFFIX PLASTIC PACKAGE CASE 29 Pin 1. Adjust 2. Vout 3. Vin 3 1 2 D SUFFIX PLASTIC PACKAGE CASE 751 (SOP–8*) 1 8 Pin 1. Vin 2. Vout 3. Vout 4. Adjust 5. N.C. 6. Vout 7. Vout 8. N.C. * SOP–8 is an internally modified SO–8 pack- age. Pins 2, 3, 6 and 7 are electrically common to the die attach flag. This internal lead frame modification decreases package thermal resis- tance and increases power dissipation capabili- ty when appropriately mounted on a printed cir- cuit board. SOP–8 conforms to all external di- mensions of the standard SO–8 package. Operating Temperature Range Device Package LM317LD LM317LZ LM317LBZ SOP–8 Plastic Plastic TJ = –40° to +125°C TJ = 0° to +125°C LM317LBD SOP–8 1 MOTOROLA ANALOG IC DEVICE DATA Three-Terminal 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. • 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 µA, the error associated with this term is negligible in most applications. LM317L Vin Vout R1 240 R2 Adjust IAdj Cin* 0.1 µF + CO** 1.0 µF Vout + 1.25 V 1 ) R2 R1 ) IAdj R2 © Motorola, Inc. 1996 Rev 1 |
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