TPS51640ARSLR

The TPS51640A and TPS59640 controllers have a BOOT voltage (VBOOT) of 0V, while the TPS59641 controller is specifically designed for a VBOOT level of 1.1V.

The TPS51640A, TPS59640, and TPS59641 controllers mentioned in the document are DCAP+™ mode adaptive on-time controllers. They are used for setting the output voltage using a DAC that outputs a reference in accordance with the 8-bit VID code defined in the Intel IMVP-7 PWM Specification document. These controllers vary the on-time as a function of input and output voltage to maintain a nearly constant frequency during steady-state conditions. They are designed for CPU core applications and have a 3-phase configuration with a selectable 8-level current limit and a 3V to 28V conversion voltage range. The TPS51640A and TPS59640 have a BOOT voltage of 0V, while the TPS59641 is specifically designed for a VBOOT level of 1.1V. These controllers have integrated Fast FET drivers with integrated Boost FET and internal driver bypass mode for use with DrMOS devices. They are packaged in a space-saving, thermally enhanced 48-pin QFN package and are rated to operate within specific temperature ranges.