4.5V至28V电池输入恒定实时控制CXSD62357驱动大型同步整流器FET热关机（非锁存） | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
目录7.相关产品 产品概述 返回TOP CXSD62357 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 CXSD62357 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. Single-stage buck conversion allows these devices to directly step down high-voltage batteries for the highest possible efficiency. The noiseless pulse-skipping mode setting maintains the switching frequency above 25kHz to eliminates the audio noise. The CXSD62357 is intended for CPU core, chipset, DRAM, or other low-voltage supplies as low as 0.5V. The CXSD62357 is available in TQFN2X2-12 package.产品特点 返回TOP „ Ultra-High Efficiency „ 4700ppm/°C RDS(ON) Current Sensing ( without Current-Sense Resistor ) „ Quasi-PWM with 100ns Load-Step Response „ Built in 1% 0.5V Reference Voltage „ 0.5V to 3.3V Adjustable Output Range „ 4.5V to 28V Battery Input Range „ Integrated Boost Diode „ OVP & UVP „ 1.5ms Voltage Servo Soft-Start „ Drives Large Synchronous-Rectifier FETs „ Power-Good Indicator „ Thermal Shutdown (Non-latch) 应用范围 返回TOP „ Notebook Computers „ CPU Core Supply „ I/O Supply „ Chipset/RAM Supply as Low as 0.5V 技术规格书（产品PDF) 返回TOP 需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！ 产品封装图 返回TOP
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4.5V至28V电池输入恒定实时控制CXSD62357驱动大型同步整流器FET热关机（非锁存）
发表时间：2020-05-21浏览次数：11
