TPS54312中文资料具有 1.2V 输出的 3V 至 6V 输入、3A 同步降压 SWIFT™ 转换器数据手册TI规格书

描述 Description

As members of the SWIFT™ family of DC - DC regulators, the TPS54311, TPS54312, TPS54313, TPS54314, TPS54315 and TPS54316 low-input-voltage high-outputcurrent synchronous-buck PWM converters integrate all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that provides high performance under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally and externally set slow-start circuit to limit in-rush currents; and a powergood output useful for processor/logic reset, fault signaling, and supply sequencing.

The TPS54311, TPS54312, TPS54313, TPS54314, TPS54315 and TPS54316 devices are available in a thermally enhanced 20-pin HTSSOP (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

• 60-mΩ, MOSFET Switches for High Efficiency at 3-A Continuous Output Source and Sink Current
• Internally Compensated for Low Parts Count
• Wide PWM Frequency – Fixed 350 kHz, 550 kHz or Adjustable 280 kHz to 700 kHz
• Integrated Solution Reduces Board Area and Total Cost