The AMC3330 offers a fully integrated isolated DC/DC converter that includes the following components illustrated in the Functional Block Diagram:

• Low-dropout regulator (LDO) on the low-side to stabilize the supply voltage VDD that drives the low-side of the DC/DC converter
• Low-side full-bridge inverter and drivers
• Laminate-based, air-core transformer for high immunity to magnetic fields
• High-side full-bridge rectifier
• High-side LDO to stabilize the output voltage of the DC/DC converter for high analog performance of the signal path

The DC/DC converter uses a spread-spectrum clock generation technique to reduce the spectral density of the electromagnetic radiation. The resonator frequency is synchronous to the operation of the ΔΣ modulator to minimize interference with data transmission and support the high analog performance of the device.

The architecture of the DC/DC converter is optimized to drive the high-side circuitry of the AMC3330 and can source up to 1 mA of additional current (I_H) for an optional auxiliary circuit such as an active filter, pre-amplifier, or comparator.