ADP3211AMNR2G

The ADP3211AMNR2G from ON Semiconductor is a highly efficient, single-phase, synchronous buck switching regulator controller. It is optimized for converting notebook battery voltage to the supply voltage required by high-performance Intel chipsets. The device features an internal 7-bit DAC for reading VID codes and setting output voltages between 0 V and 1.5 V.

This controller utilizes a multi-mode architecture with programmable switching frequency and a programmable load line slope function. It provides accurate current overload protection and a delayed power-good output, supporting On-The-Fly (OTF) output voltage changes. The ADP3211AMNR2G operates over an extended commercial temperature range of -40°C to 100°C and is available in a 32-lead QFN package.

Key features include integrated MOSFET drivers, compatibility with Intel IMVP-6.5 CPU and GMCH voltage regulator specifications, and automatic power-saving modes for light load operation. It also offers soft transient control to reduce inrush current and audio noise. The input voltage range is from 3.3 V to 22 V, with a worst-case differentially sensed core voltage error of ±7 mV.

Applications for the ADP3211AMNR2G include notebook power supplies for next-generation Intel chipsets and Intel Netbook Atom processors. The component is supplied in a 32-QFN (5x5) package suitable for surface mounting.