Envelope tracking integrated circuit supporting multiple types of power amplifiers

An envelope tracking (ET) integrated circuit (ETIC) comprising:

• a first output node and a second output node coupled to a power amplifier;
• a first tracker circuit configured to generate a first low-frequency current at the first output node;
• a second tracker circuit configured to generate a second low-frequency current at the second output node;
• a first ET voltage circuit configured to generate a first ET voltage at the first output node based on a first ET target voltage;
• a second ET voltage circuit configured to generate a second ET voltage at the second output node based on a second ET target voltage;
• and
• a control circuit configured to:
• determine a type of the power amplifier;
• cause the first tracker circuit and the second tracker circuit to generate the first low-frequency current and the second low-frequency current, respectively, independent of the type of the power amplifier;
• and
• cause the first ET voltage circuit and the second ET voltage circuit to generate the first ET voltage and the second ET voltage, respectively, in accordance with the type of the power amplifier.