600毫安输出电流6MHz降压开关稳压器固定频率2.5V至5.5V输入CXSD62334输出电压可编程低纹波轻载PFM模式 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
目录7.相关产品 产品概述 返回TOP The CXSD62334 is a 6MHz, step-down switching voltage regulator, with 600mA output current capability, that delivers a fixed output from an input voltage supply of 2.5V to 5.5V. Using an architecture with synchronous rectification, the CXSD62334 is capable of delivering a peak efficiency of 90%, while maintaining efficiency over 80% at load currents as low as 1mA. The regulator operates at a nominal fixed frequency of 6MHz, which reduces the value of the external components to as low as 470nH for the output inductor and 4.7μF for the output capacitor. At moderate and light loads, pulse frequency modulation (PFM) is used tooperate the device in power-save mode with a typical quiescent current of 22μA. Even with such a low quiescent current, the part exhibits excellent transient response during large load swings. At higher loads, the system automatically switches to fixed-frequency control, operating at 6MHz. Its output could be programmed for four different voltages, as well as two different on/off delay times, making it ideal for designing primary supply. The CXSD62334 is available in Green TDFN-2×2-6L package. It operates over an ambient temperature range of -40℃ to +85℃. 产品特点 返回TOP • 600mA Output Current Capability • 22μA Typical Quiescent Current • 6MHz Fixed Frequency Operation • Best-in-Class Load Transient Response • Best-in-Class Efficiency • 2.5V to 5.5V Input Voltage Range • Precise Preset Voltage Selectable from 4 Preset Voltages in 1.02V ~ 3V Range • Output Voltage Programmable in Operation • Low Ripple Light-Load PFM Mode • Internal Soft-Start • Input Under-Voltage Lockout (UVLO) • Thermal Shutdown and Overload Protection • Output Discharge • Available in Green TDFN-2×2-6L Package • -40℃ to +85℃ Operating Temperature Range 应用范围 返回TOP 3G, 4G, WiFi, WiMAX, and WiBro Data Cards Tablets DSC,DVC Netbooks,Ultra-Mobile PCs 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
电路原理图 返回TOP a 相关芯片选择指南 返回TOP 更多同类产品......
|