TPS53129中文资料4.5V 至 24V 同步双路 D-CAP2 降压控制器数据手册TI规格书

描述 Description

The TPS53129 is a dual, adaptive on-time D-CAP2™ mode synchronous buck controller. The TPS53129 enables system designers to complete the suite of various end equipment’s power bus regulators with cost effective, low component count, and low standby current solution. The main control loop for the TPS53129 uses the D-CAP2™ mode control which provides a very fast transient response with no external components.The TPS53129 also has a 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 fixed frequency emulated adaptive on-time control supports seamless operation between PWM mode at heavy load condition and reduced frequency operation at light load for high efficiency down to milliampere range.The device provides convenient and efficient operation with input voltages from 4.5 V to 24 V and output voltages from 0.76 V to 5.5 V.The TPS53129 is available in 4-mm × 4-mm 24-pin QFN (RGE) or 24-pin TSSOP (PW) packages, and is specified from –40°C to 85°C ambient temperature range.

特性 Features

• D-CAP2 Mode Control
• No External Parts Required for Loop Compensation
• High Initial Reference Accuracy (±1%)
• Wide Input Voltage Range: 4.5 V to 24 V
• Low-Side RDS(ON) Loss-Less Current Sensing
• Adjustable Soft Start
• 700-kHz Switching Frequency
• 30-mV to 300-mV OCP Threshold Voltage
• Auto-Skip Eco-mode for High Efficiency at Light Load
• Point-of-Load Regulation in Low Power Systems for Wide Range of Applications
• Networking Home Terminal
• DVD Player/Recorder
• Gaming Consoles