AN2798完整的DDR2 / 3内存电源控制器根据PM6670AS

AN2798完整的DDR2 / 3内存电源控制器根据PM6670AS

AN2798
Application note
Complete DDR2/3 memory power supply
controller based on the PM6670AS

Introduction
The PM6670AS device is a complete DDR2/3 power supply regulator for portable
applications designed to meet JEDEC specifications. It integrates a constant on-time (COT)
buck controller, a 2 A peak sink/source low dropout regulator and a 15 mA low-noise
buffered reference.
The COT architecture assures fast transient response supporting both polymeric and
ceramic output capacitors. An em