الميزات
●Up to 2-A Continuous (3-A Peak) Output Current
●High Efficiency up to 95 percent Enabled by 110-mΩ Integrated MOSFET Switch
●Internal Compensation Minimizes External Parts Count
●Fixed 500-kHz Switching Frequency for Small Filter Size
●System Protected by Over Current Limiting,Over Voltage Protection and Thermal Shutdown
●–40 degree to 125 degree Operating Junction Temperature Range
●Available in Small 8-Pin SOIC Package
التطبيقات
●Consumer: Set-top Box, DVD, LCD Displays
●12-V/24-V Distributed Power Systems
وصف
The TPS5420 is a high-output-current PWM converter that integrates a low resistance high side N-channel MOSFET. Included on the substrate with the listed features is a high performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions; an undervoltage- lockout circuit to prevent start-up until the input voltage reaches 5.5 V; an internally set slow-start circuit to limit inrush currents; and a voltage feed-forward circuit to improve the transient response.Using the ENA pin, shutdown supply current is reduced to 18 μA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS5420 feedback loop is internally compensated.
يتوفر الجهاز TPS5420 في حزمة سهلة الاستخدام ذات 8 - pin SOIC. توفر TI وحدات التقييم وأداة برنامج Designer للمساعدة في تحقيق تصميمات إمدادات الطاقة عالية الأداء بسرعة لتلبية دورات تطوير المعدات القوية.
الوسم : tps5420dr ، الصين ، الموردين ، الشركات المصنعة ، بالجملة ، في الأوراق المالية
