The power supply requirements for the TAS5720L/M device consist of one 3.3-V supply to power the low-voltage analog and digital circuitry and one higher-voltage supply to power the output stage of the speaker amplifier. Several on-chip regulators are included on the TAS5720L/M device to generate the voltages necessary for the internal circuitry of the audio path. The voltage regulators which have been integrated are sized only to provide the current necessary to power the internal circuitry. The external pins are provided only as a connection point for off-chip bypass capacitors to filter the supply. Connecting external circuitry to the regulator outputs can result in reduced performance and damage to the device.

The TAS5720L/M requires two power supplies. A 3.3-V supply, called DVDD, is required to power the digital section of the chip. A higher-voltage supply, between 4.5 V and 26.4 V, supplies the analog circuitry (AVDD) and the power stage (PVDD). The AVDD supply feeds several LDOs including GVDD, VREG, and VCOM. The LDO outputs are connected to external pins for filtering purposes, but should not be connected to external circuits. The LDO outputs have been sized to provide current necessary for internal functions but not for external loading.