TPS54972中文资料9A 有源总线终端/DDR 存储器直流/直流转换器数据手册TI规格书

描述 Description

As a member of the SWIFT™ family of dc/dc regulators, the TPS54972 low-input voltage high-output current synchronous-buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter L and C components; an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 3.0 V; an internally set slow-start circuit to limit in-rush currents; and a status output to indicate valid operating conditions.The TPS54972 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD™ package, which eliminates bulky heatsinks. TI provides evaluation modules and the SWIFT designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

特性 Features

• Tracks Externally Applied Reference Voltage
• 6% to 90% VI Output Tracking Range
• Load Protected by Peak Current Limit and Thermal Shutdown
• APPLICATIONS
• Active Termination of GTL and SSTL High-Speed Logic Families
• Precision Point of Load Power Supply