High-Speed Step-Down Controller CXSD62356 is a small-sized step-down controller uses constant on-time control scheme to handle wide input/output voltage ratios with ease and provides 100ns “instant-on

   产品概述 返回TOPzBn嘉泰姆

     CXSD62356 is a small-sized step-down controller uses constant on-time control scheme to handle wide input/output voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency. The CXSD62356 achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs. Efficiency is further enhanced by an ability to drive very large synchronous rectifier MOSFETs. The CXSD62356is intended for CPU core, chipset, DRAM, or other low-voltage supplies as low as 0.7V. The CXSD62356is available in TDFN3X3-10 package.

   产品特点 返回TOPzBn嘉泰姆

„ Ultra-High Efficiency zBn嘉泰姆

„ 4700ppm/°C RDS(ON) Current Sensing ( without Current-Sense Resistor ) zBn嘉泰姆

„ Quasi-PWM with 100ns Load-Step Response zBn嘉泰姆

„ Built-in 0.5% 0.7V Reference zBn嘉泰姆

„ 0.7V to 2.6V Adjustable Output Range zBn嘉泰姆

„ 4.5V to 28V Battery Input Range zBn嘉泰姆

„ 4 Selectable Frequency Setting zBn嘉泰姆

„ Integrated Boost Switch zBn嘉泰姆

„ OVP & UVP zBn嘉泰姆

„ 1.5ms Voltage Servo Soft-Start zBn嘉泰姆

„ Drives Large Synchronous-Rectifier FETs zBn嘉泰姆

„ Power-Good Indicator zBn嘉泰姆

„ Thermal Shutdown (Non-latch)zBn嘉泰姆

   应用范围 返回TOPzBn嘉泰姆

„ Notebook Computers zBn嘉泰姆

„ CPU Core Supply zBn嘉泰姆

„ I/O Supply zBn嘉泰姆

„ Chipset/RAM Supply as Low as 0.7VzBn嘉泰姆

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