Overview
The TPS53647RTAT is a high-current, multi-phase, step-down controller produced by Texas Instruments. This device is designed for advanced power management in high-current applications, particularly for ASICs. It features built-in non-volatile memory (NVM) and a PMBus interface, enabling comprehensive telemetry and control. The TPS53647RTAT is housed in a thermally enhanced 40-pin QFN package and operates over a temperature range of -40°C to 125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Package | WQFN (RTA), 40 pins |
| Operating Temperature Range | -40°C to 125°C |
| Conversion Voltage Range | 4.5 V to 17 V |
| BOOT Voltage Selection | 0.5 V to 2.5 V, 5-mV steps |
| Number of Phases | 1, 2, 3, or 4 phases |
| PMBus Bias Compatibility | 1.8 V and 3.3 V |
| Frequency Range | 300 kHz to 1 MHz |
| Package Size | 6 mm × 6 mm |
Key Features
- 8-bit selectable BOOT voltage via pinstrap or NVM: 0.5 V to 2.5 V (down to 5-mV steps)
- 1-, 2-, 3-, or 4-phase operation
- PMBus system interface for telemetry of voltage, current, power, temperature, and fault conditions
- Configurable with non-volatile memory (NVM) or resistor pinstrap
- 16 levels of programmable overcurrent protection (OCP) with pinstrap or NVM
- Fast transient response with DCAP+ control
- Optimized efficiency at light and heavy loads
- Support for 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 compatible with CSD95372BQ5MC NexFET power stage
- Accurate, adjustable voltage positioning
- Dynamic phase shedding with programmable current threshold
- Patented AutoBalance phase balancing
- Uses TI’s Fusion Digital Power Designer GUI
Applications
The TPS53647RTAT is designed for high-current applications, particularly in the realm of ASICs (Application-Specific Integrated Circuits). It is suitable for use in various high-power systems that require precise voltage regulation, such as data centers, cloud computing infrastructure, and other high-performance computing environments. Additionally, it can be used in telecommunications equipment, networking devices, and other applications where advanced power management and telemetry are essential.
Q & A
- What is the operating temperature range of the TPS53647RTAT?
The operating temperature range is -40°C to 125°C.
- How many phases can the TPS53647RTAT operate in?
The device can operate in 1, 2, 3, or 4 phases.
- What is the range of the BOOT voltage selection?
The BOOT voltage can be selected from 0.5 V to 2.5 V with steps as small as 5 mV.
- Does the TPS53647RTAT support PMBus interface?
Yes, it supports PMBus interface for telemetry of voltage, current, power, temperature, and fault conditions.
- What is the frequency range of the TPS53647RTAT?
The frequency range is from 300 kHz to 1 MHz.
- Is the TPS53647RTAT compatible with any specific power stages?
Yes, it is fully compatible with the CSD95372BQ5MC NexFET power stage.
- What is the package size of the TPS53647RTAT?
The package size is 6 mm × 6 mm in a 40-pin QFN package.
- Does the TPS53647RTAT support dynamic phase shedding?
Yes, it supports dynamic phase shedding with a programmable current threshold.
- Can the TPS53647RTAT be configured using non-volatile memory (NVM) or resistor pinstrap?
Yes, it can be configured using either NVM or resistor pinstrap.
- What GUI tool is used for designing with the TPS53647RTAT?
The device uses TI’s Fusion Digital Power Designer GUI.
