The TPA3126D2 device requires an external power supply, between 4.5 V and 26 V, for the analog circuitry (AVCC) and the power stage (PVCC) of the amplifier. Several on-chip regulators are included on the TPA3126D2 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 these regulator outputs may result in reduced performance and damage to the device. The AVCC supply feeds internal LDO including GVDD. This LDO output are connected to external pins for filtering purposes, but should not be connected to external circuits. GVDD LDO output have been sized to provide current necessary for internal functions but not for external loading.