150kHz 3A Step-down Voltage Converter CXDC6579G series of regulators are integrated circuits that provide all active functions for a step-down (buck) switching regulator, capable of driving a 3A load

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The CXDC6579G series of regulators are integrated circuits that provide all active functions for a step-down (buck) switching regulator, capable of driving a 3A load with excellent line and load regulation. These devices are avail-able in fixed output voltages of 3.3V, 5V, 12V, and an adjust-able output version. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation†, and a fixed-frequency oscillator. The CXDC6579G series operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 5-lead TO-220 package with 5 pins lead in one line options, and a 5-lead TO-263 surface mount package. A standard series of inductors are available from several different manufacturers optimized for use with the CXDC6579G series. This feature greatly simplifies the design of switch-mode power supplies. Other features include a guaranteed ±2% tolerance on output voltage under specified input voltage and output load conditions, and ±10% on the oscillator frequency. External shutdown is included, featuring typically 80 μA standby current. Self-protection features include a two stage frequency reducing current limit for the output switch and an over tem perature shutdown for complete protection under fault conditions.

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※ 3.3V, 5V, 12V, and adjustable output versions (ADJ) 7ia嘉泰姆

※ Adjustable version output voltage range, 1.25V to 37V±2% max over       line and load conditions 7ia嘉泰姆

※ Available in TO-220 and TO-263 packages 7ia嘉泰姆

※ Guaranteed 3A output load current 7ia嘉泰姆

※ Input voltage range up to 40V 7ia嘉泰姆

※ Requires only 4 external components 7ia嘉泰姆

※ Excellent line and load regulation specifications 7ia嘉泰姆

※ 150 kHz fixed frequency internal oscillator 7ia嘉泰姆

※ TTL shutdown capability 7ia嘉泰姆

※ Low power standby mode, IQ typically 80 μA 7ia嘉泰姆

※ G means Pb free in MSP1250G 7ia嘉泰姆

※ Uses readily available standard inductors 7ia嘉泰姆

※ Thermal shutdown and current limit protection7ia嘉泰姆

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※ Simple high-efficiency step-down (buck) regulator , CAR DVD           7ia嘉泰姆

    electronic 7ia嘉泰姆

※ On-card switching regulators , LCD-TV , LCD-monitor , ADSL 7ia嘉泰姆

※ Positive to negative converter7ia嘉泰姆

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