• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

The TPS53219 is small-sized single buck controller with adaptive on-time D-CAP™ mode control. The device is suitable for low output voltage, high current, PC system power rail and similar point-of-load (POL) power supplies in digital consumer products. The small package and minimal pin-count save space on the PCB, while the dedicated EN pin and pre-set frequency selections simplify the power supply design. The skip-mode at light load conditions, strong gate drivers and low-side FET R_DS(on) current sensing supports low-loss and high efficiency, over a broad load range. The conversion input voltage (high-side FET drain voltage) range is between 3 V and 28 V, and the output voltage range is between 0.6 V and 5.

特性

• Wide Input Voltage Range: 4.5 V to 28 V
• Output Voltage Range: 0.6 V to 5.5 V
• Wide Output Load Range: 0 A to > 20 A
• Built-In 0.6-V Reference
• Built-In LDO Linear Voltage Regulator
• Auto-Skip Eco-mode™ for Light Load Efficiency
• D-CAP™ Mode with 100-ns Load-Step Response
• Adaptive On-Time Control Architecture with 8 Selectable Frequency Settings
• 4700ppm/°C R_DS(on)Current Sensing
• 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms Selectable Internal Voltage Servo Soft-Start
• Pre-Charged Start-up Capability
• Built-In Output Discharge
• Power Good Output
• Integrated Boost Switch
• Built-in OVP/UVP/OCP
• Thermal Shutdown (Non-latch)
• 3 mm × 3mm QFN, 16-Pin (RGT) Package
• APPLICATIONS
  • Point-of-Load Systems
    • Storage Computer