TPS54225中文资料采用 HTSSOP 封装的 4.5V 至 18V 输入、2A 同步降压转换器数据手册TI规格书

描述 Description

The TPS54225 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54225 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54225 uses the D-CAP2™ mode control which provides a fast transient response with no external compensation components. The TPS54225 also has a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VCC input , and from 2-V to 18-V VIN input power supply voltage. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable slow start time and a power good function. The TPS54225 is available in the 14 pin HTSSOP package, and designed to operate from –40°C to 85°C.

特性 Features

• D-CAP2™ Mode Enables Fast Transient Response
• Wide VCC Input Voltage Range: 4.5 V to 18 V
• Output Voltage Range: 0.76 V to 5.5 V
• High Efficiency, less than 10 µA at shutdown
• Adjustable Soft Start
• 700-kHz Switching Frequency (fSW)
• Power Good Output
• Wide Range of Applications for Low Voltage System
• High Definition Blu-ray Disc™ Players
• Digital Set Top Box (STB)


D-CAP2, PowerPAD are trademarks of Texas Instruments. Blu-ray Disc is a trademark of Blu-ray Disc Association.