This chapter discusses LM317, which is the first voltage regulator integrated-circuit (IC) to implement the concept of using the ratio of two resistors to define a desired output. It presents the first approximation equation to calculate the output voltage for LM317. The instructions for ...
Figure 18. Basic Circuit Configuration www.onsemi.com 7 LM317L, NCV317L Protection Diodes When external capacitors are used with any IC regulator it is sometimes necessary to add protection diodes to prevent the capacitors from discharging through low current points into the regulator. Figure 14 ...
LM317TLM317TO-220 BLOCKDIAGRAM Sep.2007-Rev1.0HTC 1.Adj2.Output3.Input 1 3 TO-220PKG 上海众韩电子科技有限公司TEL:+86-021-55159880/881/886FAX:+86-021-55159883网址:http://.ckb-sh/ ADJUSTABLEVOLTAGEREGULATOR(POSITIVE)LM317 TYPICALAPPLICATIONS ...
i have 3.3 v voltage regulator module using LM317. i want switch the output through external voltage using BC557/BC547 transistor, because i get output when external voltage is high. get zero output when external voltage is low. please help to make ...
Basic Circuit Configuration Load Regulation The LM317 is capable of providing extremely good load regulation, but a few precautions are needed to obtain maximum performance. For best performance, the programming resistor (R1) should be connected as close to the regulator as possible to minimize line...
Specifications: Product Type: LM317 LM317T Voltage Regulator Quantity: 10PCS Operating Temperature Range: -40 to +85°C Customization: Yes Output Voltage Range: 1.2V to 37V Output Current: 1.5A Package Type: TO-220 Features: **Versatile Voltage Regulation** The LM317 LM317T Voltage Regulator...
Since the LM317M is a floating regulator, it is only the voltage differential across the circuit which is important to performance, and operation at high voltages with respect to ground is possible. Vin LM317M Adjust Vout Vref + R1 IPROG Vout IAdj R2 Vref = 1.25 V Typical Figure 19. ...
Specifications: Product Type: LM317 Voltage Regulator Quantity: 20pcs Package: TO92 Voltage Range: 1.2V to 37V Current Output: 100mA to 0.1A Customization: Yes Operating Temperature: LM317 Features: |Lms For|Lm74r010| **Versatile Voltage Regulation** The LM317 Voltage Regulator is a versatil...
Basic Circuit Configuration Load Regulation The LM317 is capable of providing extremely good load regulation, but a few precautions are needed to obtain maximum performance. For best performance, the programming resistor (R1) should be connected as close to the regulator as possible to minimize line...
LM317 In a voltage Regulator Circuit **The above circuit uses LM 317 IC, to create a +1.5V To 10.6 Vvoltage regulator using a voltage input near to +12 to +14 V. With the indicated capacitor values. The 1K pot is used to regulate the output voltage. For a General case voltage regu...