12-phase digital step-down multiphase controller with SVI3 and PMBus for AMD platform

The TPS536C5 is a fully AMD

SVI3 compliant step-down controller with

dual channels, built-in non-volatile memory (NVM), and PMBus™ interface, and

is fully compatible with TI NexFET™ smart power

stage. Advanced control features such as D-CAP+™ architecture

with undershoot reduction (USR) provide fast transient

response, low output capacitance, and good current sharing.

The device also provides novel phase interleaving strategy

and dynamic phase shedding for efficiency improvement at

different loads. Adjustable control of VCORE slew

rate and voltage positioning round out the AMD SVI3

features. In addition, the device supports the PMBus

communication interface for reporting the telemetry of

voltage, current, power, temperature, and fault conditions

to the systems. All programmable parameters can be

configured by the PMBus interface and can be stored in NVM

as the new default values to minimize the external component

count.

The TPS536C5 device

if offered in a thermally enhanced 48-pin QFN packaged and

is rated to operate from –40°C to 125°C.