TPS62152QRGTRQ1

TPS6215xx-Q1 系列是一款易于使用的同步降压DC-DC 转换器，其针对高功率密度应用进行了优化。典型2.5MHz 高开关频率允许使用小型电感器并且通过使用DCS-Control™拓扑技术提供快速瞬态响应以及高输出电压精度。 借助其3V 至17V 宽运行输入电压范围，此器件非常适合用于由锂离子或者其它电池以及由12V 中间电源轨供电的系统。它在输出电压介于0.9V 至6V 之间时支持高达1A 的持续输出电流（使用100% 占空比模式）。 输出电压启动斜坡由软启动引脚控制，从而允许作为独立电源或者在跟踪配置下的运行。通过配置使能和开漏电源正常引脚也有可能实现电源排序。 In Power Save Mode, the devices show quiescent current of about 17 μA from VIN. Power Save Mode, entered automatically and seamlessly if load is small, maintains high efficiency over the entire load range. In Shutdown Mode, the device is turned off and shutdown current consumption is less than 2 μA. The device, available in adjustable and fixed output voltage versions, is packaged in a 16-pin QFN package measuring 3-mm×3-mm (RGT). The TPS6215xx-Q1 synchronous switched mode power converters are based on DCS-Control (Direct Control with Seamless Transition into Power Save Mode), an advanced regulation topology, that combines the advantages of hysteretic, voltage mode and current mode control including an AC loop directly associated to the output voltage. This control loop takes information about output voltage changes and feeds it directly to a fast comparator stage. It sets the switching frequency, which is constant for steady state operating conditions, and provides immediate response to dynamic load changes. To get accurate DC load regulation, a voltage feedback loop is used. The internally compensated regulation network achieves fast and stable operation with small external components and low ESR capacitors. The DCS-Control topology supports PWM (Pulse Width Modulation) mode for medium and heavy load conditions and a Power Save Mode at light loads. During PWM, it operates at its nominal switching frequency in continuous conduction mode. This frequency is typically about 2.5 MHz with a controlled frequency variation depending on the input voltage. If the load current decreases, the converter enters Power Save Mode to sustain high efficiency down to very light loads. In Power Save Mode the switching frequency decreases linearly with the load current. Since DCS-Control supports both operation modes within one single building block, the transition from PWM to Power Save Mode is seamless without effects on the output voltage.

• 符合汽车应用要求
• 具有符合AEC-Q100的下列结果：
  • 器件温度1级：-40°C至125°C的环境运行温度范围
  • 器件人体模型(HBM)静电放电(ESD)分类等级H2
  • 器件充电器件模型(CDM) ESD分类等级C4B
• DCS-Control™拓扑技术
• 输入电压范围：3至17V
• 高达1A输出电流
• 从0.9V至6V的可调节输出电压范围
• 引脚可选输出电压（标称值，±5%）
• 可编程软启动和跟踪
• 无缝省电模式转换
• 17μA的静态电流（典型值）
• 可选运行频率
• 电源良好输出
• 100%占空比模式
• 短路保护
• 过温保护
• 采用3mm x 3mm QFN-16封装

• 车载应用
• 标准12V导轨式电源
• 单一或者多个锂离子电池供电的负载点(POL)电源
• 固态磁盘
• 嵌入式系统
• 低压降稳压器(LDO)替代产品
• 移动个人电脑(PC)，平板电脑，调制解调器(Modem)，摄像机