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2.7V至5.5V的输入电压4A输出电流1MHz频率电流模的降压型直流CXSD62294效率高达96%占空比100%负载瞬态响应
发表时间：2020-05-15
浏览次数：103

目录

1.产品概述       2.产品特点     1Iu嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）1Iu嘉泰姆

5.产品封装       6.电路原理图  1Iu嘉泰姆

7.相关产品1Iu嘉泰姆

   产品概述 返回TOP1Iu嘉泰姆

      CXSD62294A是一款采用1 MHz频率，电流模的降压型直流-直流变换器，提供高达4A的输出电流。该芯片的工作电压范围从2.7V到5.5V，输出电压从0.6V到5V，芯片内部集成了主开关管和同步管以提高效率，不需外接肖特基二极管。CXSD62294A可以通过外部引脚设置为强制脉宽调制模式（FPWM）或脉冲跳跃模式（PSM），FPWM时提供很低的输出纹波，适合于噪声敏感的应用场合，而PSM可以在轻负载时减少开关损耗来提高效率。CXSD62294A具有短路保护和过温保护功能，可以提高系统的可靠性，软启动电路用以减小启动过程中的输入浪涌电流。CXSD62294A提供具有散热片的3mm×3mm 的TDFN-10封装。The CXSD62294A is a 1 MHz fixed frequency synchronous, current-mode, step-down dc-dc converter capable of providing up to 4A output current. The CXSD62294A operates from an input range of 2.7V to 5.5V and provides a regulated output voltage from 0.6V to 5V. The internal synchronous power switch improves efficiency and eliminates the need for an external Schottky diode. The ECXSD62294 can be externally set for either forced PWM continuous mode or pulse skipping mode. Forced PWM operation provides very low output ripple voltage for noise sensitive applications while pulse skipping operation improves light load efficiency by reducing switching loss. The CXSD62294 features short circuit and thermal protection circuits to improve system reliability. Internally soft-start avoids input inrush current during startup. The CXSD62294 is available in TDFN 3mm× 3mm 10-pin package with the exposed pad.

   产品特点 返回TOP1Iu嘉泰姆

 1Iu嘉泰姆

‧2.7V至5.5V的输入电压范围1Iu嘉泰姆

‧效率高达96%1Iu嘉泰姆

‧高达4A的输出电流1Iu嘉泰姆

‧62/35mΩ的集成主开关管和同步管1Iu嘉泰姆

‧1MHz固定开关频率1Iu嘉泰姆

‧100%占空比低压降工作1Iu嘉泰姆

‧短路保护和过温保护1Iu嘉泰姆

‧集成UVLO 和 Power Good功能1Iu嘉泰姆

‧良好的线性瞬态和负载瞬态响应1Iu嘉泰姆

‧提供3mm×3mm 的TDFN-10封装1Iu嘉泰姆

‧符合RoHS规范及Pb-Free1Iu嘉泰姆

 2.7V to 5.5V Input Voltage Range1Iu嘉泰姆

 High Efficiency up to 96%1Iu嘉泰姆

 4A Available Load Current1Iu嘉泰姆

 62/35m Integrated PFET/NFET Switches1Iu嘉泰姆

 1MHz Switching Frequency1Iu嘉泰姆

 100% Duty Cycle Low Dropout Operation1Iu嘉泰姆

 Short Circuit and Thermal Protection1Iu嘉泰姆

 Integrated UVLO and Power Good1Iu嘉泰姆

 Excellent Line and Load Transient Response1Iu嘉泰姆

 Available in 10-Pin 3mm′ 3mm TDFN Package1Iu嘉泰姆

 RoHS Compliant and 100% Lead(Pb)-Free1Iu嘉泰姆

Halogen-Free1Iu嘉泰姆

   应用范围 返回TOP1Iu嘉泰姆

 1Iu嘉泰姆

‧高性能DSPs, FPGAs, ASICs和微处理器1Iu嘉泰姆

‧基站，远程通信，网络设备电源1Iu嘉泰姆

‧便携PC与上网本1Iu嘉泰姆

 High Performance DSPs, FPGAs, ASICs and1Iu嘉泰姆

Microprocessors1Iu嘉泰姆

 Base Station, Telecom, and Networking1Iu嘉泰姆

Equipment Power Supplies1Iu嘉泰姆

 ePC and NetPCs1Iu嘉泰姆

   技术规格书（产品PDF) 返回TOP 1Iu嘉泰姆

     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！1Iu嘉泰姆

 QQ截图20160419174301.jpg1Iu嘉泰姆

产品封装图 返回TOP1Iu嘉泰姆

a1Iu嘉泰姆

电路原理图 返回TOP1Iu嘉泰姆

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