TPS53688中文资料Dual-channel, 8-phase step-down, digital multiphase D-CAP+™ controller with VR13.HC SVID and PMBus数据手册TI规格书

描述 Description

The TPS53688 is a fully VR13.HC SVID compliant step-down controller with two channels, built-in non-volatile memory (NVM), and PMBus™ interface, and is fully compatible with TI NexFET™ smart power stages. Advanced control features such as the D-CAP+™ architecture with undershoot reduction (USR) provide fast transient response, low output capacitance, and good dynamic current sharing. The device also provides a novel phase interleaving strategy and dynamic phase shedding, for efficiency improvement across loading conditions. Adjustable control of output voltage slew rate and adaptive voltage positioning are natively supported. In addition, the device supports the PMBus communication interface, for reporting the telemetry of voltage, current, power, temperature, and fault conditions to the host system. All programmable parameters can be configured through the PMBus interface and stored in NVM as new default values, to minimize the external component count.

The TPS53688 device is offered in a thermally enhanced 40-pin QFN packaged and is rated to operate from –40°C to 125°C.

特性 Features

• Input Voltage Range: 4.5 V to 17 V
• Intel® VR13.HC SVID Compliant
• Enhanced D-CAP+™ Control to Provide Super Transient Performance with Excellent Dynamic Current Sharing
• Programmable Phase-Firing Order
• Dynamic Phase Shedding with Programmable Thresholds for Optimizing Efficiency at Light and Heavy Loads
• Driverless PWM Architecture for Efficient High-Frequency Switching
• Accurate, Adjustable, Adaptive Voltage Positioning (AVP)
• Cycle-by-cycle Per-Phase Current Limit
• 5 mm × 5 mm, 40-Pin, QFN Package