Released：2022-04-12 00:00:24
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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:
*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.
CBM317 Typical Features
l Ensure 1.5A output current
l Input voltage range: 3~40V
l Output adjustable voltage range: 1.25~37V
l Typical linear adjustment rate: 0.01%
l Typical load adjustment rate: 0.1%
l Maximum input-output differential voltage: 40V
l Minimum input-output differential voltage: 3V
l Over current and over heating protection
l Output Transistor Safe−Area Compensation
l Eliminates Stocking many Fixed Voltages
l TO263-3 and TO252-3 package
l Operation temperature range: -40℃~125℃
CBM317 Application Areas
l Post regulation for switching supplies
l Constant-current regulator
l Microprocessor supplies
l Automotive LED lighting
l Battery chargers
CBM317 Typical Electrical Characteristics
The characteristic diagrams of several main parameters of CBM317 are as follows:
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