• - 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 TPS53310 provides a fully integrated 3-V to 5-V V_IN integrated synchronous FET converter solution with 16 total components, in 200 mm² of PCB area. Due to the low R_DS(on) and TI Proprietary SmoothPWM™ skip mode of operation, it enables 95.5% peak efficiency, and over 90% efficiency at loads as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power-dense, 3-A solution.

The TPS53311 features a 1.1-MHz switching frequency, SKIP mode operation support, pre-bias startup, internal softstart, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage and over-temperature protections and all ceramic output capacitor support.

器件用途

• 5-V Step-down Rail
• 3.3-V Step-down Rail

特性

• 95.5% Maximum Efficiency
• Continuous 3-A Output Current
• Supports All MLCC Output Capacitor
• SmoothPWM Auto-Skip Eco-mode for Light-Load Efficiency
• Voltage Mode Control
• Supports Master-Slave Interleaved Operation
• Synchronization up to ±20% of Nominal Frequency
• Conversion Voltage Range Between 2.9 V and 6.0 V
• Soft-Stop Output Discharge During Disable
• Adjustable Output Voltage Ranging Between 0.6 V and 0.84 V × V_IN
• Overcurrent, Overvoltage and Over-Temperature Protection
• Small, 3 mm × 3 mm , 16-Pin QFN Package
• Open-Drain Power Good Indication
• Internal Boot Strap Switch
• Low R_DS(on), 24 mΩ with 3.3-V Input and 19-mΩ with 5-V Input
• Supports Pre-Bias Start-Up Functionality