Variable switched DC-to-DC voltage converter

摘要

A voltage converter can be switched among two or more modes to produce an output voltage tracking a reference voltage that can be of an intermediate level between discrete levels corresponding to the modes. One or more voltages generated from a power supply voltage, such as a battery voltage, can be compared with the reference voltage to determine whether to adjust the mode. The reference voltage can be independent of the power supply voltage.

主权项

1. A multi-chip module comprising:
a power amplifier die including one or more power amplifiers; and a controller die including control logic of a direct current to direct current (DC-DC) converter, the control logic configured to compare a plurality of voltages generated from a supply voltage to a reference voltage that is independent of the supply voltage and to generate one or more control signals based at least partly on the comparisons, the DC-DC converter configured to generate an output voltage based on the one or more control signals and provide the output voltage to the power amplifier die.