6-Phase, D-CAP+ step-down driverless buck controller with NVM and PMBus interface for ASIC
Product details
Parameters
Package | Pins | Size
Features
- 8-bit Selectable BOOT Voltage via Pinstrap or NVM: 0.5 V to 2.5 V (down to 5-mV Step)
- 1-, 2-, 3-, 4-, 5-, or 6- Phase Operation
- PMBus System Interface for Telemetry of Voltage, Current, Power, Temperature, and Fault Conditions
- 1.8-V and 3.3-V PMBus Bias Compatible
- Fault Reporting: Output Voltage, Output Current, and Temperature
- Configurable with Non-Volatile Memory (NVM) or Resistor Pinstrap
- 16 Levels of Programmable Per-Phase OCL 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
- Compatible with CSD9549x NexFET Power Stages
- Accurate, Adjustable Voltage Positioning
- 300-kHz to 1-MHz Frequency Selections with Closed-loop Frequency Control
- Patented AutoBalance 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, PowerPAD Package
Description
The TPS53667 is a high-current, multi-phase, step-down controller. The device offers built-in non volatile memory (NVM) and PMBus interface. It is compatible with the NexFET power stages (CSD9549x). The TPS53667 provides 8-bit BOOT voltage selection covering output voltage from 0.5 V to 2.5 V, with steps as small as 5 mV, 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 TPS53667 also provides novel phase interleaving strategy and dynamic phase shedding for efficiency improvement at light loads. In addition, the TPS53667 supports the PMBus communication interface with systems for telemetry of voltage, current, power, temperature, and fault conditions. Some of the configurations can be programmed by pinstrap or PMBus and stored in non-volatile memory to minimize the external component count.
The TPS53667 is offered in a space saving, thermally enhanced 40-pin QFN package and is rated to operate from –40°C to 125°C.
For all available packages, see the orderable addendum at theSimilar but not functionally equivalent to the compared device:
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
This evaluation module (EVM) allows the user to assess the operating characteristics of the TPS53667 controller with the CSD95490 smart power stages in a low voltage, high current, step-down point of load (POL) application with the configuration, control and monitoring functionality of the included (...)
Features
- Vout: 1.0V/180A
- Vin: 8 to 14V
- Pin-Strapping and PMBus (NVM) configuration support
- 1 thru 6 phase operation
- Optimized efficiency with light or heavy loading
Description
This EVM serves as an interface adapter or a bridge between a host PC (IBM™ compatible) and one or multiple slave devices via a standard type-A to mini-B USB cable. The communication between the USB interface adapter and the host PC is via USB, while the communication between the USB interface (...)
Features
- Supports master mode I²C, SMBus or PMBus as well as GPIO.
- Supports USB1.1 full speed at 12 Mbit/s. The USB interface adapter is recognized by the host as a generic human interface device (HID), so no proprietary USB or HID driver is needed. Therefore, the USB interface adapter can be treated as a (...)
Software development
Features
Some of the tasks you can perform with the GUI include:
- Turn on or off the power supply output, either through the hardware control line or the PMBus OPERATION command
- Monitor real-time data. Items such as input voltage, output voltage, output current, temperature, and warnings/faults are continuously (...)
The MFR GUI supports the same devices as Fusion Digital Power Designer software. This tool is typically used in manufacturing (...)
Features
Some of the tasks the tool can perform include:
- Download/Upgrade firmware
- Program a device configuration
- Calibrate a device (manually or instrumented via GPIB):
- Input voltage (Vin)
- Output voltage (Vout)
- Output current (Iout)
- Temperature
- Test the device (validate power conversion falls within acceptable Vout (...)
Design tools & simulation
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| WQFN (RTA) | 40 | View options |
Ordering & quality
Support & training
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Training series
View all TI training and videosVideos
Testing a Multiphase Regulator in the Lab
Carmen Parisi explains how to test a multiphase buck regulator in the lab.
