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4.5V至5.5V可调输出OVP和UVP软启动CXSD62370A可编程开关频率负载阶跃响应的准脉宽调制内置5V LDO支持80mA内部电路 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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目录7.相关产品 产品概述 返回TOP CXSD62369 CXSD62370A CXSD62370B is a 8A, synchronous DC/DC buck converter with integrated 20mΩ N-channel high-side MOSFET and 17mΩ N-channel low-side MOSFET. It 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 CXSD62369 CXSD62370A CXSD62370B achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs. Single-stage buck conversion allows these devices to directly step down high-voltage batteries for the highest possible efficiency. The built-in 5V LDO supports 80mA for internal circuit with automatic bootstrapping to DC/DC converter output. The CXSD62369 CXSD62370A CXSD62370Bis intended for the 5V system power supply of Notebook Computer. The CXSD62369 CXSD62370A CXSD62370Bis available in QFN4X4-28 package.产品特点 返回TOP „ Ultra-High Efficiency „ Low Quiescent Current of 40μA „ Integrated 17mΩ at VCC=5V N-Channel MOSFET for Low Side „ Integrated 20mΩ at VCC=5V N-Channel MOSFET for High Side „ No Current-Sense Resistor (Lossless ILIMIT) „ Quasi-PWM with 100ns Load-Step Response „ 1% VOUT Accuracy Over Line and Load „ Programmable Switching Frequency „ 4.5V to 5.5V Adjustable Output Range „ 6V to 28V Adapter or Battery Input Range „ Noiseless Pulse-skipping Mode (25kHz min) „ VCLK Output „ Integrated Boost Switch „ OVP & UVP „ Over Temperature Protection (non-latch) „ 3.3ms Soft-Start „ Power-Good Indicator „ Fixed 5V, 80mA Bootstrapped Linear Regulator 应用范围 返回TOP „ Notebook Computers „ I/O Supply „ Networking Power Supply 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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发表时间：2020-05-22浏览次数：99
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