The TPS40400EVM-351 is an evaluation module, which is fully assembled and tested circuit for evaluating the TPS40400 PMBus synchronous buck controller in a typical single output application. The evaluation module is designed to use a regulated 8Vdc to 14Vdc bus to produce a regulated output of 1.2Vdc at a maximum of 20A of load current. The evaluation module features the CSD16325Q5 and CSD16404Q5A NexFET Power FETs. If a designer wants to communicate with this evaluation module from a Windows based PC, a separate USB Interface Adapter evaluation module is required. The USB to GPIO Adapter 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.
Input voltage ranges from 8V to 14V
Regulated 1.2V output, marginable and trimmable via the PMBus interface
20A DC steady state output current
Programmable enable function via the PMBus interface
Programmable switching frequency is 200kHz to 2MHz
Programmable soft start via the PMBus interface
Programmable over current protection
Inductor resistance or series resistance use for current sensing
Convenient test points for probing critical waveforms
Voltage mode feedback control with voltage feed forward
