• - 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 TPS51317 is a fully integrated synchronous buck regulator employing D-CAP+™ mode architechture. It is used for 3.3-V and 5-V step-down systems where space is a consideration, high-performance and optimized component count are required.

The TPS51317 features four switching frequency settings (up to 1.5 MHz), synchronous operation in SKIP, droop support, external tracking support, pre-bias startup, output soft discharge, integrated bootstrap switch, power good function, enable function and complete protection functions, and both output ceramic and SP/POS capacitor support. It supports supply and conversion voltages up to 6.0 V, and output voltages adjustable from 0.6 V to 2.

器件用途

• Low-Voltage Applications Stepping Down from 5-V or 3.3-V Rail

特性

• Integrated FETs Converter w/TI Proprietary D-CAP+ Mode Architecture
• Minimum External Components Count
• Integrated FETs Converter w/TI Proprietary D-CAP+ Mode Architecture
• Support all MLCC Output Capacitor and SP/POSCAP
• Auto-Skip Mode and Ripple Reduction Mode
• Optimized Efficiency at Light and Heavy Loads
• Selectable 800-kHz, 1-MHz, 1.2-MHz and 1.5-MHz Frequency
• Up to 6.0-V Conversion Voltage Range
• Adjustable Output Voltage Range From 0.6 V to 2 V
• Small 3.5 mm × 4 mm, 20-Pin QFN Package