Simple high-efficiency step-down regulator

On-card switching regulators

Positive to negative converter




    The CBM2596 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down switching regulator, capable of driving a 3A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V and an adjustable output version.

    Requiring a minimum number of external components, these regulators are simple to use.

    The CBM2596 series operates at a switching frequency of 150kHz. Available in standard 5-lead TO-220 package.

    Other features include a guaranteed ± 4% tolerance on output voltage under specified input voltage and output load conditions, and ± 15% on the oscillator frequency. External shutdown is included, featuring typically 100μA standby current. Self protection features include a two stage frequency reducing current limit for output switch and an over temperature shutdown for complete protection under fault conditions. The over temperature shutdown level is about 145℃ with 5℃ hysteresis.


  • 3.3V, 5V, 12V, and adjustable output versions

  • Adjustable version output voltage range, 1.2V to 37V± 4% max over line and load conditions

  • Guaranteed 3A output load current

  • Input voltage range up to 40V

  • Requires only 4 external components

  • Excellent line and load regulation specifications

  • 150kHz fixed frequency internal oscillator

  • TTL shutdown capability

  • Low power standby mode,

  • IQ typically 100μA

  • Thermal shutdown and current limit protection


CBM2596DT-3.3TO-263-5 TO-220-55-40℃~125℃Reel, 500RoHS在线申请
CBM2596DT-5.0TO-263-5 TO-220-55-40℃~125℃Reel, 500RoHS在线申请
CBM2596DT-12TO-263-5 TO-220-55-40℃~125℃Reel, 500RoHS在线申请
CBM2596DT-ADJTO-263-5 TO-220-55-40℃~125℃Reel, 500RoHS在线申请


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  • CBM2596XX 电源管理 0.75M 2019-09-10