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corebai芯佰微power management IC电源管理CBM2596DT-ADJ FEATURES 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 APPLICATIONS Simple high-efficiency step-down regulator On-card switching regulators Positive to negative converter GENERAL DESCRIPTION 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. |
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