TPS53647
TPS53647 is 4-Phase D-CAP+ Step-Down Buck Controller manufactured by Texas Instruments.
Features
- 1 8-bit Selectable BOOT Voltage via Pinstrap or NVM: 0.5 V to 2.5 V (down to 5-m V Step)
- 1-, 2-, 3-, or 4- Phase Operation
- PMBus™ System Interface for Telemetry of
Voltage, Current, Power, Temperature, and Fault Conditions
- 1.8-V and 3.3-V PMBus Bias patible
- Fault Reporting: Output Voltage, Output Current, and Temperature
- Configurable with Non-Volatile Memory (NVM) or Resistor Pinstrap
- 16 Levels of Programmable OCP with Pinstrap or NVM
- Fast Transient with DCAP+™Control
- Optimized Efficiency at Light and Heavy Loads
- Support Pre-Bias Startup
- Phase Current Imbalance Detection and Reporting
- 8 Independent Levels of Overshoot Reduction (OSR) and Undershoot Reduction (USR)
- Driverless Configuration for Efficient High Frequency Switching
- Fully patible with CSD95372BQ5MC Nex FET™ Power Stage
- Accurate, Adjustable Voltage Positioning
- 300-k Hz to 1-MHz Frequency Selections with Closed-loop Frequency Control
- Patented Auto Balance™ Phase Balancing
- Uses TI’s Fusion Digital Power Designer GUI
- Dynamic Phase Shedding with Programmable Current Threshold
- Conversion Voltage Range: 4.5 V to 17 V
- Small, 6 mm × 6 mm, 40-Pin, QFN, Power PAD™ Package
2 Applications
- Application-Specific Integrated Circuit (ASIC) Power in munications Equipment
- High Density Power Solutions
- Server Power
- Smart Power Systems
3 Description
The TPS53647 is a high-current, multi-phase, stepdown controller. The device offers built-in non volatile memory (NVM) and PMBus interface. It is patible with the Nex FET power stages (CSD95372BQ5MC). The TPS53647 provides 8-bit BOOT voltage selection covering output voltage from 0.5 V to 2.5 V, with steps as small as 5 m V, which is ideal for high current application with accurate output voltage setting. Advanced control features such as D-CAP+ architecture with undershoot reduction (USR) and overshoot reduction (OSR) provide fast transient response, lowest output capacitance, and high efficiency. The TPS53647 also provides novel...
