The Auto-Control adaptive loop compensation algorithm currently provides the only real-time autonomous compensation solution, and is able to modulate the converter”s bandwidth on a cycle-by-cycle basis to optimise the trade-off between dynamic performance and system stability. The PV3101 uses full differential voltage, current, and temperature measurements and an 11 bit ADC to provide precision measurement (e.g., ±3% IOUT accuracy over temperature), tight control (e.g., ±0.5% VOUT over line, load, and temperature), and accurate real-time reporting of telemetry information for key power supply parameters.
In order to reduce power losses during light-load operation and idle conditions, Powervation has looked to improve upon its Green Modes technology by adding additional modes of operation focused on increasing light-load efficiency. The PV3101 supports a diode emulation mode that triggers once the converter enters DCM operation, thus preventing the low-side FET from sinking current when the inductor current ramps down to zero. To further improve light-load efficiency, the device employs a pulse skipping mode that reduces high-side FET switching losses by eliminating unneeded switching cycles, while still maintaining tight output regulation. The PV3101 also offers idle, standby, and power down modes to reduce chip power consumption when the power converter is idle.
The PV3101 can be interconnected with other Powervation controllers via its DSS current share bus for use in multi-phase designs. And with the PowerSMART GUI-based design tool, users are able to easily configure and adjust more than 60 power supply parameters without making modification in hardware.
The PV3101 is designed to function with all leading driver and FET solutions to allow the designer maximum flexibility, powering ASICs, FPGAs, processors, and general POLs for networking, communications, server, storage, and advanced power module applications. RoHS compliant, the PV3101 is sampling now in 32-lead QFN packaging.