G2998F11U

The G2998/G2999 is a 3A sink/source tracking termination regulator. It is specifically designed for low-cost/ low-external component count systems. The G2998/ G2999 maintains a high speed operational amplifier that provides fast load transient response and only requires 20μF (2 10μF) of ceramic output capacitance. The G2998/G2999 supports remote sensing functions and all features required to power the DDR I / DDR II / DDR III / DDR IIIL VTT bus termination according to the JEDEC specification. In addition, the G2998/ G2999 also has an Enable (EN) pin that provides Suspend to RAM (STR) functionality. When EN is pulled low, VREF will remain active, but VTT output will be turned off and discharged to the ground through internal MOSFETs in G2998 version and VTT output will be in tri-state in G2999 version. A power saving advantage can be obtained in this mode through lowering the quiescent current to150μA @ VCC=3.3V.