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LM317

Jiangsu Changjiang Electronics Technology Co Ltd

Other Regulators

Description:

Regulator

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  • Manufacturer Part Number LM317
  • Description Regulator
  • Manufacturer Jiangsu Changjiang Electronics Technology Co Ltd
  • Risk Rank 2.78
  • Part Life Cycle Code private
  • Package Description private
  • Distributor private

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Datasheets & Reference Design

  • LM317 : Linear Voltage Regulator, Positive, Adjustable Output, 1.5 A TJ = 0° to +125°C

    The LM317 Low Dropout (LDO) Linear Voltage Regulator is an adjustable 3-terminal positive LDO voltage regulator capable of supplying in excess of 1.5 A 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 LM317 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 LM317 can be used as a precision current regulator.

  • 1.2 V to 37 V adjustable voltage regulators

    The LM117/LM217/LM317 are monolithic integrated circuit in TO-220, TO-220FP, TO-3 and D2PAK packages intended for use as positive adjustable voltage regulators. They are designed to supply more than 1.5 A of load current with an output voltage adjustable over a 1.2 to 37 V range. The nominal output voltage is selected by means of only a resistive divider, making the device exceptionally easy to use and eliminating the stocking of many fixed regulators.

  • National Semiconductor Corporation LM317 Series Datasheet

    IC VREG 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PSSO2, TO-252, DPAK-3, Adjustable Positive Single Output Standard Regulator

  • National Semiconductor Corporation 317 Series Datasheet

    IC VREG 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PBCY3, PLASTIC, TO-92, 3 PIN, Adjustable Positive Single Output Standard Regulator

  • Texas Instruments 317 Series Datasheet

    IC VREG 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PBCY3, PLASTIC, TO-92, 3 PIN, Adjustable Positive Single Output Standard Regulator

  • National Semiconductor Corporation 317 Series Datasheet

    IC VREG 1.2 V-57 V ADJUSTABLE POSITIVE REGULATOR, MBFM2, ROHS COMPLIANT, METAL CAN, TO-3, 2 PIN, Adjustable Positive Single Output Standard Regulator

  • Texas Instruments Datasheet: 117, 317

    IC VREG 1.2 V-57 V ADJUSTABLE POSITIVE REGULATOR, MBFM2, ROHS COMPLIANT, METAL CAN, TO-3, 2 PIN, Adjustable Positive Single Output Standard Regulator

  • National Semiconductor Corporation LM317 Series Datasheet

    IC VREG 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, UUC, WAFER, Adjustable Positive Single Output Standard Regulator

  • Texas Instruments Datasheet: 117, 317

    IC VREG 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, MBFM2, METAL CAN, TO-3, 2 PIN, Adjustable Positive Single Output Standard Regulator

  • National Semiconductor Corporation 317 Series Datasheet

    IC VREG 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, MBFM2, METAL CAN, TO-3, 2 PIN, Adjustable Positive Single Output Standard Regulator

  • See More »
  • 36-60Vin, 350W Slow Drain Modulation Power Converter with PSFB ZTE and HSHB Reference Design

    PMP7246.2: This is a 350W High Speed Full Bridge Phase Shift ZVT Synchronous Rectification DC/DC reference design. It is built for telecom applications to supply a RF Power Amplifier stage. The design is utilizing UCC28950 voltage mode forward and average current limitation backward converter (two quadrant converter). It can modulate output voltage from 20V to 32V within 200us (at maximum 200uF of capacitive load) – so called: slow drain modulation. The converter has full load steps capability as well. It is a very small design for high sophisticated telecom applications. The system can also be used for all other two quadrant applications. Input voltage range: 36VDC-60VDC; Output voltage: 20VDC…32VDC (adjustable); Output current: 12A (18Apeak).

  • Programmable output Constant Voltage - Constant Current (CVCC) Quasi-Resonant Flyback charger

    PMP8955: This industrial charger reference design uses the LM5023 Quasi-Resonant Flyback controller to implement a 120VAC input design with CVCC output configured by microcontroller PWM control from 10 to 22.5V and output current from 200mA to 2A.

  • Primary-Side Regulated Flyback w/85-265VAC Input High Output Energy Storage Reference Design

    PMP8930.5: The PMP8930 reference design uses the UCC28710 primary-side regulated flyback controller to generate a 20V output from a univeral AC input. a bulk capacitor with slow-charge-fast-discharge circuit is placed at flyback output to provide long hold up time for the following step-down DC-DC stages. TPS54335 is used as the controller and power stage for the main 4V or 12V output. The valley switching of the UCC28710 allows this low-cost design to achieve a maximum load efficiency of 83%; no load losses are less than 70mW.

  • Primary-Side Regulated Flyback w/85-265VAC Input High Output Energy Storage Reference Design

    PMP8930.1: The PMP8930 reference design uses the UCC28710 primary-side regulated flyback controller to generate a 20V output from a univeral AC input. a bulk capacitor with slow-charge-fast-discharge circuit is placed at flyback output to provide long hold up time for the following step-down DC-DC stages. TPS54335 is used as the controller and power stage for the main 4V or 12V output. The valley switching of the UCC28710 allows this low-cost design to achieve a maximum load efficiency of 83%; no load losses are less than 70mW.

  • Grid-tied Solar Micro Inverter with MPPT - TIDM-SOLARUINV - TI Tool Folder

    TIDM-SOLARUINV?SYS-null-null-findchips-refdes-rd-null-wwe: This design is a digitally-controlled, grid-tied, solar micro inverter with maximum power point tracking (MPPT). Solar micro inverters are an emerging segment of the solar power industry. Rather than linking every solar panel in an installation to a central inverter, solar micro inverter-based installations link smaller, or “micro,” inverters individually to each solar panel. This configuration lends itself to many benefits, including elimination of partial shading conditions, increased system efficiency, improved reliability and greater modularity. For this design, a C2000™ Piccolo™ TMS320F28035 microcontroller (MCU) is the digital controller for the complete inverter, including control of the power stages, MPPT, and grid-tie synchronization. The power conversion stages include 1) an active clamp fly-back DC/DC converter with secondary voltage multiplier and 2) a grid-tied, DC/AC inverter. The design achieves 93 percent peak efficiency and less than 4 percent total harmonic distortion, providing more power output per solar panel, reducing detrimental heat dissipation, and increasing system longevity.

  • Grid-tied Solar Micro Inverter with MPPT

    TIDM-SOLARUINV: This design is a digitally-controlled, grid-tied, solar micro inverter with maximum power point tracking (MPPT). Solar micro inverters are an emerging segment of the solar power industry. Rather than linking every solar panel in an installation to a central inverter, solar micro inverter-based installations link smaller, or “micro,” inverters individually to each solar panel. This configuration lends itself to many benefits, including elimination of partial shading conditions, increased system efficiency, improved reliability and greater modularity. For this design, a C2000™ Piccolo™ TMS320F28035 microcontroller (MCU) is the digital controller for the complete inverter, including control of the power stages, MPPT, and grid-tie synchronization. The power conversion stages include 1) an active clamp fly-back DC/DC converter with secondary voltage multiplier and 2) a grid-tied, DC/AC inverter. The design achieves 93 percent peak efficiency and less than 4 percent total harmonic distortion, providing more power output per solar panel, reducing detrimental heat dissipation, and increasing system longevity.

  • Primary-Side Regulated Flyback w/85-265VAC Input High Output Energy Storage Reference Design

    PMP8930.4: The PMP8930 reference design uses the UCC28710 primary-side regulated flyback controller to generate a 20V output from a univeral AC input. a bulk capacitor with slow-charge-fast-discharge circuit is placed at flyback output to provide long hold up time for the following step-down DC-DC stages. TPS54335 is used as the controller and power stage for the main 4V or 12V output. The valley switching of the UCC28710 allows this low-cost design to achieve a maximum load efficiency of 83%; no load losses are less than 70mW.

  • 24V to 3.3V-5V-12V DC/DC Platform - PMP2693 - TI Tool Folder

    PMP2693?SYS-null-null-findchips-refdes-rd-null-wwe: A 4.75V to 6V input to 1.8V@16A output Buck converter which supplies typically a core voltage, running @ 300KHz.

  • Primary-Side Regulated Flyback w/85-265VAC Input High Output Energy Storage Reference Design - PMP8930.3 - TI Tool Folder

    PMP8930: The PMP8930 reference design uses the UCC28710 primary-side regulated flyback controller to generate a 20V output from a univeral AC input. a bulk capacitor with slow-charge-fast-discharge circuit is placed at flyback output to provide long hold up time for the following step-down DC-DC stages. TPS54335 is used as the controller and power stage for the main 4V or 12V output. The valley switching of the UCC28710 allows this low-cost design to achieve a maximum load efficiency of 83%; no load losses are less than 70mW.

  • Programmable output Constant Voltage - Constant Current (CVCC) Quasi-Resonant Flyback charger - PMP8955 - TI Tool Folder

    PMP8955?SYS-null-null-findchips-refdes-rd-null-wwe: This industrial charger reference design uses the LM5023 Quasi-Resonant Flyback controller to implement a 120VAC input design with CVCC output configured by microcontroller PWM control from 10 to 22.5V and output current from 200mA to 2A.

  • Primary-Side Regulated Flyback w/85-265VAC Input High Output Energy Storage Reference Design

    PMP8930.2: The PMP8930 reference design uses the UCC28710 primary-side regulated flyback controller to generate a 20V output from a univeral AC input. a bulk capacitor with slow-charge-fast-discharge circuit is placed at flyback output to provide long hold up time for the following step-down DC-DC stages. TPS54335 is used as the controller and power stage for the main 4V or 12V output. The valley switching of the UCC28710 allows this low-cost design to achieve a maximum load efficiency of 83%; no load losses are less than 70mW.

  • Primary-Side Regulated Flyback w/85-265VAC Input High Output Energy Storage Reference Design

    PMP8930.3: The PMP8930 reference design uses the UCC28710 primary-side regulated flyback controller to generate a 20V output from a univeral AC input. a bulk capacitor with slow-charge-fast-discharge circuit is placed at flyback output to provide long hold up time for the following step-down DC-DC stages. TPS54335 is used as the controller and power stage for the main 4V or 12V output. The valley switching of the UCC28710 allows this low-cost design to achieve a maximum load efficiency of 83%; no load losses are less than 70mW.

  • 24V to 3.3V-5V-12V DC/DC Platform

    PMP2693: A 4.75V to 6V input to 1.8V@16A output Buck converter which supplies typically a core voltage, running @ 300KHz.

  • 36-60Vin, 350W Slow Drain Modulation Power Converter with PSFB ZTE and HSHB Reference Design - PMP7246.1 - TI Tool Folder

    PMP7246: This is a 350W High Speed Full Bridge Phase Shift ZVT Synchronous Rectification DC/DC reference design. It is built for telecom applications to supply a RF Power Amplifier stage. The design is utilizing UCC28950 voltage mode forward and average current limitation backward converter (two quadrant converter). It can modulate output voltage from 20V to 32V within 200us (at maximum 200uF of capacitive load) – so called: slow drain modulation. The converter has full load steps capability as well. It is a very small design for high sophisticated telecom applications. The system can also be used for all other two quadrant applications. Input voltage range: 36VDC-60VDC; Output voltage: 20VDC…32VDC (adjustable); Output current: 12A (18Apeak).

  • 36-60Vin, 350W Slow Drain Modulation Power Converter with PSFB ZTE and HSHB Reference Design

    PMP7246.1: This is a 350W High Speed Full Bridge Phase Shift ZVT Synchronous Rectification DC/DC reference design. It is built for telecom applications to supply a RF Power Amplifier stage. The design is utilizing UCC28950 voltage mode forward and average current limitation backward converter (two quadrant converter). It can modulate output voltage from 20V to 32V within 200us (at maximum 200uF of capacitive load) – so called: slow drain modulation. The converter has full load steps capability as well. It is a very small design for high sophisticated telecom applications. The system can also be used for all other two quadrant applications. Input voltage range: 36VDC-60VDC; Output voltage: 20VDC…32VDC (adjustable); Output current: 12A (18Apeak).

  • Primary-Side Regulated Flyback w/85-265VAC Input High Output Energy Storage Reference Design - PMP8930.1 - TI Tool Folder

    PMP8930: The PMP8930 reference design uses the UCC28710 primary-side regulated flyback controller to generate a 20V output from a univeral AC input. a bulk capacitor with slow-charge-fast-discharge circuit is placed at flyback output to provide long hold up time for the following step-down DC-DC stages. TPS54335 is used as the controller and power stage for the main 4V or 12V output. The valley switching of the UCC28710 allows this low-cost design to achieve a maximum load efficiency of 83%; no load losses are less than 70mW.

  • See More »