The TPS53676 is a step-down controller with dual channels, built-in non-volatile memory (NVM), and PMBus™ compatible serial interface, and is fully compatible with TI NexFET™ smart power stage. Advanced control features such as D-CAP+™ architecture provide fast transient response, low output capacitance, and good current sharing. The device also provides novel phase interleaving strategy and flexible firing sequences to improve thermal performance. Adjustable control of output voltage slew rate and voltage positioning are also supported. In addition, the device supports the PMBus communication interface for reporting the telemetry of voltage, current, power, temperature, and fault conditions to the system host. All programmable parameters can be configured by the serial interface and can be stored in NVM as the new default values to minimize the external component count.

The TPS53676 device if offered in a thermally enhanced 48-pin QFN packaged and is rated to operate from –40°C to 125°C.

• Input voltage range: 4.5 V to 17 V
• Output voltage range: 0.25 V to 5.5 V
• Per-phase switching frequency range: 300 kHz to 2000 kHz
• Dual output supporting N+M phase configurations (N+M ≤ 7, M ≤ 3)
• AVSBus compliant, per PMBus 1.3.1 part III
• PMBus v1.3.1 system interface for configuration, control and telemetry of voltage, current, power, temperature, and fault status
• Adaptive voltage scaling (AVS) through VOUT_COMMAND
• Enhanced D-CAP+ control to provide super transient performance with excellent dynamic current sharing
• Programmable loop compensation
• Flexible phase-firing order
• External pinstrap for Ch. A boot voltage settings
• Individual phase current calibrations and reporting
• Phase thermal balance management (TBM)
• Full support for dynamic phase shedding (DPS)
• Fast phase-adding for undershoot reduction (USR)
• Body-diode braking for overshoot reduction (OSR)
• Driverless configuration for efficient high-frequency switching
• Fully Compatible with TI NexFET? power stage for high-density solutions
• Accurate, programmable adaptive voltage positioning (AVP)
• Patented AutoBalance? phase balancing
• 6 mm × 6 mm, 48-pin, QFN package

• Vin (Min) (V)
• 4.5
• Vin (Max) (V)
• 18
• Vout (Min) (V)
• 0.25
• Vout (Max) (V)
• 5
• Iout (Max) (A)
• 280
• Iq (Typ) (uA)
• 50000
• Switching frequency (Min) (kHz)
• 300
• Switching frequency (Max) (kHz)
• 2000
• Features
• Adjustable Current Limit, Dynamic Voltage Scaling, Enable, Frequency Synchronization, I2C, Light Load Efficiency, Multiple Outputs, Phase Interleaving, Power Good, Pre-Bias Start-Up, Remote Sense, Synchronous Rectification, UVLO Adjustable, Voltage Margining
• Regulated outputs (#)
• 2
• Number of phases
• 7
• Rating
• Catalog

TPS53676的完整型号有：TPS53676RSLR、TPS53676RSLT，以下是这些产品的关键参数及官网采购报价：

TPS53676RSLR，工作温度：-40 to 125，封装：VQFN (RSL)-48，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAUAG，TI官网TPS53676RSLR的批量USD价格：2.8（1000+）

TPS53676RSLT，工作温度：-40 to 125，封装：VQFN (RSL)-48，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：Call TI，TI官网TPS53676RSLT的批量USD价格：3.36（1000+）

TPS53676EVM-084 — TPS53676 七相 AVSBus 控制器评估模块

TPS53676EVM 是供用户评估 TPS53676 控制器的评估模块 (EVM)。

该控制器采用双通道（6+0、6+1 或 5+2 相位配置）设计，可通过 PMBus 接口进行 D-CAP+ 同步降压无驱动器控制。该器件在 4.5V 至 17V 的电压范围内工作，可通过 PMBus 接口对控制器进行编程和监控。

BMC084-EVM 采用 CSD95410 同步降压 NexFET™ 智能功率级器件作为功率级。

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