Texas Instruments TPS53688 Step-Down Digital Multiphase Controllers
Texas Instruments TPS53688 Step-Down Digital Multiphase Controllers are fully VR13.HC SVID-compliant step-down controllers with two channels, built-in nonvolatile memory (NVM), and a PMBus™ interface. It is fully compatible with TI NexFET™ smart power stages. Advanced control features such as the D-CAP+™ architecture with undershoot reduction (USR) provide a 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 is natively supported.
Also, the Texas Instruments TPS53688 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 package and is rated to operate from –40°C to 125°C.
Features
- 4.5V to 17V input voltage range
- 0.25V to 5.5V output voltage range
- Intel® VR13.HC SVID compliant
- Dual output supporting N+M phase configurations (N+M ≤ 8, M ≤ 4)
- Enhanced D-CAP+™ control to provide super transient performance with excellent dynamic current sharing
- Programmable loop compensation
- Programmable phase-firing order
- Individual phase current calibrations and reporting
- Dynamic phase shedding with programmable thresholds for optimizing efficiency at light and heavy loads
- Fast phase-adding for Undershoot Reduction (USR)
- Driverless PWM architecture for efficient high-frequency switching
- Fully compatible with TI NextFET™ power stage for high-density solutions
- Accurate, adjustable, Adaptive Voltage Positioning (AVP)
- Patented AutoBalance™ phase current balancing
- Cycle-by-cycle per-phase current limit
- PMBus™ v1.3.1 system interface for telemetry of voltage, current, power, temperature, and fault conditions
- 5mm × 5mm, 40-Pin, QFN package
Applications
- Datacenter and enterprise computing rack server
- Hardware accelerator
- Network interface card (NIC)
- ASIC and high-performance client
Simplified Schematic
Đã phát hành: 2020-10-29
| Đã cập nhật: 2024-09-12