G2997

www.DataSheet4U.com Global Mixed-mode Technology Inc. G2997 DDR Termination Regulator Features „ „ „ „ „ „ „ „ „ „ „ „ „ General Description The G2997 is a 3A sink/source tracking termination regulator. It is specifically designed for low-cost/ low-external component count systems. The G2997 maintains a high speed operational amplifier that provides fast load transient response and only requires 20µF (2x10µF) of ceramic output capacitance. The G2997 supports remote sensing functions and all features required to power the DDR I / DDR II VTT bus termination according to the JEDEC specification. In addition, the G2997 includes integrated sleep-state controls placing VTT in High-Z in S3 (suspend to RAM) and soft-off for VTT and VTTREF in S5 (Shutdown). The G2997 is available in the thermally efficient 10pin MSOP and MSOP (Exposed PAD). Support Both DDR I (1.25VTT) and DDR II (0.9 VTT) Requirements Input Voltage Range: 3.3V to 5.5V VLDOIN Voltage Range: 1.2V to 3.6V Requires Only 20µF Ceramic Output Capacitance Supports High-Z in S3 and Soft-Off in S5 Integrated Divider Tracks 1/2 VDDQSNS for Both VTT and VTTREF Remote Sensing (VTTSNS) ±20mV Accuracy for VTT and VTTREF 10mA Buffered Reference (VTTREF) Built-In Soft-Start Over Current Protection Thermal Shutdown Protection MSOP-10 and MSOP-10(Exposed Pad) Package Applications DDR I/II Memory Termination SSTL−2, SSTL−18 „ HSTL Termination „ „ Ordering Information ORDER NUMBER G2997P7U G2997F6U MARKING G2997 G2997 TEMP. RANG...