TPS62093RGTT

TPS6209x 器件是一款高效同步降压转换器，针对小外形尺寸、高效应用进行了优化并适合于电池供电类应用。为了最大限度地提升效率，此转换器运行在 2.8 MHz/1.4 MHz 的标称开关频率的脉宽调制(PWM) 模式下并在轻负载时自动进入省电运行模式。当被用于分布式电源和负载点调制时，此器件允许到其它电源轨的电压跟踪并可耐受范围在 10 μF 到高达 150 μF 甚至更高的输出电容。通过使用 DCS™控制技术，此器件可实现出色的负载静态性能以及精确的输出电压调制。 此输出电压启动斜波由软启动引脚控制，从而使器件可作为独立电源运行或运行在跟踪配置下。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。在省电模式下，此器件运行在典型值为 20 μA 静态电流下。在全部负载电流范围内，自动进入省电模式并且无缝保持高效。

The TPS6209x synchronous switched mode converters are based on DCS™ Control (Direct Control with Seamless transition into Power Save Mode). This is an advanced regulation topology that combines the advantages of hysteretic and voltage mode control. The DCS™ Control topology operates in PWM (Pulse Width Modulation) mode for medium to heavy load conditions and in Power Save Mode at light load currents. In PWM, the converter operates with its nominal switching frequency of 2.8 MHz/1.4 MHz having a controlled frequency variation over the input voltage range. As the load current decreases, the converter enters Power Save Mode, reducing the switching frequency and minimizing the IC quiescent current to achieve high efficiency over the entire load current range. DCS™Control supports both operation modes (PWM and PFM) using a single building block having a seamless transition from PWM to Power Save Mode without effects on the output voltage. Fixed output voltage versions provide smallest solution size combined with lowest quiescent current. The TPS6209x family offers excellent DC voltage regulation and load transient regulation, combined with low output voltage ripple, minimizing interference with RF circuits.

• 2.5V 至 6V 输入电压范围
• DCS™控制
• 转换器效率 95%
• 省电模式 20 μA 运行静态电流
• 针对最低压降的 100% 占空比
• 2.8 MHz/1.4 MHz 典型开关频率
• 0.8V 至 VIN 的可调输出电压
• 固定输出电压版本
• 输出放电功能
• 可调节软启动
• 两级短路保护
• 输出电压跟踪
• 宽输出电容值选择
• 采用 3mm x 3mm 16 引脚四方扁平无引线(QFN)封装

• 分布式电源
• 笔记本、笔记本电脑
• 硬盘驱动器
• 处理器电源
• 电池供电型应用