G2986 台湾致新代理商 GMT LDO系列 DDR终结器
LPDDR2/LPDDR3 Termination Regulator

General Description
The  G2986  is  a  3A  sink/source  tracking  termination  regulator.   It   is   specifically   designed   for   low-cost/   low-external  component  count  systems.  The  G2986  maintains  a  high  speed  operational  amplifier  that  pro-vides  fast  load  transient  response  and  only  requires  20μF  (2×10μF)  of  ceramic  output  capacitance.  The  G2986 supports remote sensing functions and all fea-tures  required  to  power  the  LPDDR2  /LPDDR3  /DDR  IIIL  VTT  bus  termination  according  to  the  JEDEC  specification.  In  addition,  the  G2986  includes  inte-grated  sleep-state  controls  placing  VTT  in  High-Z  in  S3   (suspend   to   RAM)   and   soft-off   for   VTT   and   VTTREF in S5 (Shutdown). The G2986 is available in the thermally efficient TDFN2X2-10.

Features
„Support 1.2V LPDDR2/LPDDR3 and DDR IIIL (0.675VTT) Requirements
„Input Voltage Range: 3V to 5.5V
„VLDOIN Voltage Range: 1.2V to 3.6V „
Requires Only 20μF Ceramic Output Capaci-tance „
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
„TDFN2X2-10 Package

Applications „
DDR IIIL Memory Termination „
LPDDR2/LPDDR3 Memory Termination
„SSTL−2, SSTL−18 „
HSTL Termination

Ordering Information

Note: K2:TDFN 2X2-10           
1:Bonding  Code            
U  &  D:  Tape  &  Reel

Pin Configuration                                                                                                     Typical Application Circuit

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