Corebai Microelectronics launches an Adjustable Three-Terminal Positive Voltage Regulator - CBM317
  • Released:2022-04-12 00:00:24
  • Views 387
The CBM317 is an adjustable three-terminal positive voltage regulator capable of delivering over 1.5 A of current across an output voltage range from 1.2 V to 37 V. Exceptionally user-friendly, this voltage regulator requires only two external resistors for setting the output voltage. Additionally, it incorporates internal current limiting, thermal shutdown, and safe operating area compensation, essentially safeguarding against blown fuses. The CBM317 is suitable for a variety of applications, including local regulation cards. The device can also be employed to construct programmable output regulators or, by connecting a fixed resistor between the adjustment and output terminals, serve as a precision current regulator.

The CBM317 is an adjustable 3−terminal positive 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 CBM317 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 CBM317 can be used as a precision current regulator.


 
CBM317 Application Block Diagram 

CBM317 voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage。The following is a typical application diagram of the product:




317.png

*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.

317-2.jpg




CBM317 Typical Features

Ensure 1.5A output current

Input voltage range: 3~40V

Output adjustable voltage range: 1.25~37V

Typical linear adjustment rate: 0.01%

Typical load adjustment rate: 0.1%

Maximum input-output differential voltage: 40V

Minimum input-output differential voltage: 3V

Over current and over heating protection

Output Transistor Safe−Area Compensation

Eliminates Stocking many Fixed Voltages

TO263-3 and TO252-3 package

Operation temperature range: -40℃~125℃


 

 

 CBM317 Application Areas

Post regulation for switching supplies

Constant-current regulator

Microprocessor supplies

Automotive LED lighting

Battery chargers



CBM317 Typical Electrical Characteristics


     

The characteristic diagrams of several main parameters of CBM317 are as follows:


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