TPS54821 4.5 V to 17 V Input, 8 A Synchronous Step Down Converter With Hiccup

1 Features 1• Integrated 26 mΩ / 19 mΩ MOSFETs • Split Power Rail: 1.6 V to 17 V on PVIN • 200 kHz to 1.6 MHz Switching Frequency • Synchronizes to External Clock • 0.6V ±1% Voltage Reference Over Temperature • Low 2 μA Shutdown Quiescent Current • Monotonic Start-Up into Pre-biased Out

具有断续电流限制的 4.5V 至 17V、8A 同步降压转换器

采用耐热性能增强型 3.5 毫米 x 3.5 毫米 QFN 封装的 TPS54821 是一款全功能 17 V、8 A 同步降压转换器。凭借高效率和集成高侧/低侧 MOSFET，此降压器为适应小型设计要求而进行了优化。 通过电流模式控制减少组件数量，并通过选择高开关频率缩小电感器占位面积，从而可进一步节省空间。输出电压启动斜线上升由 SS/TR 引脚控制，其操作既支持独立电源供电模式又支持跟踪模式。 通过正确配置使能引脚与漏极开路电源状态正常引脚也可实现电源排序。高侧 FET 的逐周期电流限制可在过载情况下保护器件不受损害，并可通过使用避免电流击穿的低侧源电流限制来增强此功能。 此外，还有一个可 • 集成式 26 mΩ / 19 mΩ MOSFET\n• 分离电源轨：1.6 V 至 17 V 的 PVIN\n• 200 kHz 至 1.6 MHz 开关频率\n• 与外部时钟同步\n• 不同温度下基准电压为 0.6 V ±1%\n• 2uA 的低关断静态电流\n• 单调启动至预偏置输出\n• 工作结点温度范围：-40°C 至 125°C\n• 可调慢启动/电源时序\n• 针对欠压及过压的功率正常输出监控\n• 可调输入欠压闭锁\n• 提供\n• 针对 SWIFT的软件工具 相关文档，请访问 http://www.ti.com/swift;

4.5 V to 17 V Input, 8 A Synchronous Step Down SWIFT??Converter With Hiccup

文件：1.36372 Mbytes Page：37 Pages

丝印代码：54821；TPS54821 4.5 V to 17 V Input, 8 A Synchronous Step Down Converter With Hiccup

1 Features 1• Integrated 26 mΩ / 19 mΩ MOSFETs • Split Power Rail: 1.6 V to 17 V on PVIN • 200 kHz to 1.6 MHz Switching Frequency • Synchronizes to External Clock • 0.6V ±1% Voltage Reference Over Temperature • Low 2 μA Shutdown Quiescent Current • Monotonic Start-Up into Pre-biased Out

丝印代码：54821；TPS54821 4.5 V to 17 V Input, 8 A Synchronous Step Down Converter With Hiccup

1 Features 1• Integrated 26 mΩ / 19 mΩ MOSFETs • Split Power Rail: 1.6 V to 17 V on PVIN • 200 kHz to 1.6 MHz Switching Frequency • Synchronizes to External Clock • 0.6V ±1% Voltage Reference Over Temperature • Low 2 μA Shutdown Quiescent Current • Monotonic Start-Up into Pre-biased Out

丝印代码：54821；TPS54821 4.5 V to 17 V Input, 8 A Synchronous Step Down Converter With Hiccup

1 Features 1• Integrated 26 mΩ / 19 mΩ MOSFETs • Split Power Rail: 1.6 V to 17 V on PVIN • 200 kHz to 1.6 MHz Switching Frequency • Synchronizes to External Clock • 0.6V ±1% Voltage Reference Over Temperature • Low 2 μA Shutdown Quiescent Current • Monotonic Start-Up into Pre-biased Out

丝印代码：54821；TPS54821 4.5 V to 17 V Input, 8 A Synchronous Step Down Converter With Hiccup

1 Features 1• Integrated 26 mΩ / 19 mΩ MOSFETs • Split Power Rail: 1.6 V to 17 V on PVIN • 200 kHz to 1.6 MHz Switching Frequency • Synchronizes to External Clock • 0.6V ±1% Voltage Reference Over Temperature • Low 2 μA Shutdown Quiescent Current • Monotonic Start-Up into Pre-biased Out

丝印代码：54821；TPS54821 4.5 V to 17 V Input, 8 A Synchronous Step Down Converter With Hiccup

1 Features 1• Integrated 26 mΩ / 19 mΩ MOSFETs • Split Power Rail: 1.6 V to 17 V on PVIN • 200 kHz to 1.6 MHz Switching Frequency • Synchronizes to External Clock • 0.6V ±1% Voltage Reference Over Temperature • Low 2 μA Shutdown Quiescent Current • Monotonic Start-Up into Pre-biased Out

丝印代码：54821；TPS54821 4.5 V to 17 V Input, 8 A Synchronous Step Down Converter With Hiccup

1 Features 1• Integrated 26 mΩ / 19 mΩ MOSFETs • Split Power Rail: 1.6 V to 17 V on PVIN • 200 kHz to 1.6 MHz Switching Frequency • Synchronizes to External Clock • 0.6V ±1% Voltage Reference Over Temperature • Low 2 μA Shutdown Quiescent Current • Monotonic Start-Up into Pre-biased Out

丝印代码：54821；TPS54821 4.5 V to 17 V Input, 8 A Synchronous Step Down Converter With Hiccup

1 Features 1• Integrated 26 mΩ / 19 mΩ MOSFETs • Split Power Rail: 1.6 V to 17 V on PVIN • 200 kHz to 1.6 MHz Switching Frequency • Synchronizes to External Clock • 0.6V ±1% Voltage Reference Over Temperature • Low 2 μA Shutdown Quiescent Current • Monotonic Start-Up into Pre-biased Out

丝印代码：54821；TPS54821 4.5 V to 17 V Input, 8 A Synchronous Step Down Converter With Hiccup

1 Features 1• Integrated 26 mΩ / 19 mΩ MOSFETs • Split Power Rail: 1.6 V to 17 V on PVIN • 200 kHz to 1.6 MHz Switching Frequency • Synchronizes to External Clock • 0.6V ±1% Voltage Reference Over Temperature • Low 2 μA Shutdown Quiescent Current • Monotonic Start-Up into Pre-biased Out

丝印代码：54821；TPS54821 4.5 V to 17 V Input, 8 A Synchronous Step Down Converter With Hiccup

1 Features 1• Integrated 26 mΩ / 19 mΩ MOSFETs • Split Power Rail: 1.6 V to 17 V on PVIN • 200 kHz to 1.6 MHz Switching Frequency • Synchronizes to External Clock • 0.6V ±1% Voltage Reference Over Temperature • Low 2 μA Shutdown Quiescent Current • Monotonic Start-Up into Pre-biased Out

TPS54821 4.5 V to 17 V Input, 8 A Synchronous Step Down SWIFT??Converter With Hiccup

文件：1.50862 Mbytes Page：42 Pages

4.5 V to 17 V Input, 8 A Synchronous Step Down Converter

文件：1.64347 Mbytes Page：42 Pages

4.5 V to 17 V Input, 8 A Synchronous Step Down Converter

文件：1.64347 Mbytes Page：42 Pages

4.5 V to 17 V Input, 8 A Synchronous Step Down SWIFT??Converter With Hiccup

文件：1.36372 Mbytes Page：37 Pages

封装/外壳：14-VFQFN 裸露焊盘 功能：降压 包装：卷带（TR）剪切带（CT）Digi-Reel® 得捷定制卷带 描述：IC REG BUCK ADJUSTABLE 8A 14VQFN 集成电路（IC） 稳压器 - DC-DC 开关稳压器

封装/外壳：14-VFQFN 裸露焊盘 功能：降压 包装：卷带（TR）剪切带（CT）Digi-Reel® 得捷定制卷带 描述：IC REG BUCK ADJUSTABLE 8A 14VQFN 集成电路（IC） DC DC 开关稳压器

4.5 V to 17 V Input, 8 A Synchronous Step Down SWIFT??Converter With Hiccup

文件：1.36372 Mbytes Page：37 Pages

4.5 V to 17 V Input, 8 A Synchronous Step Down Converter

文件：1.64347 Mbytes Page：42 Pages