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DDR Termination Regulator

RT9026

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RT9026 is a 3A sink/source tracking termination regulator. It is specifically designed for low-cost and low-external component count systems. The RT9026 possesses a high speed operating amplifier that provides fast load transient response and only requires 20μF of ceramic output capacitance. The RT9026 supports remote sensing functions and all features required to power the DDRI/II/III VTT bus termination according to the JEDEC specification. In addition, the RT9026 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 RT9026 is available in the thermal efficient package SOP-8 (Exposed Pad), MSOP-10 (Exposed Pad) and WDFN-10L 3x3.

Applications

Key Spec.
RT9026
Status Active
Memory Supported DDRI;DDRII;DDRIII;DDRIV
Vin (min) 1.2 V
Vin (max) 3.3 V
VTT Output Offset (max) 20 +/- mV
Isource/Isink (max) 3 A
Standby Current (typ) 0.001 mA
Current Limit (typ) 4 A
Features Enable Input;OCP
Package Type PMSOP-10;PSOP-8;WDFN-3x3-10
Features
  • Support DDR I, DDR II and DDR III Requirements
      ♦ Source/Sink 3A for DDRI and DDRII
      ♦ Source/Sink 2A for DDRIII
  • Input Voltage Range : 3.15V to 5.5V
  • VLDOIN Voltage Range : 1.5V to 3.3V
  • 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 (Sourcing/Sinking) (VTTREF)
  • Built-In Soft-Start
  • Over-Current Protection
  • Thermal Shutdown Protection
  • SOP-8 (Exposed Pad), MSOP-10 (Exposed Pad) and 10-Lead WDFN Package
  • RoHS Compliant and 100% Lead (Pb)-Free
Datasheet
TitleLast UpdateShareDownload
DDR Termination Regulator2007/08/17
Reliability
Title Last Update ShareDownload
DDR Termination Regulator 2015/05/19
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RT9026GFPPMSOP-102500 Buy from Distributor
RT9026GQWWDFN-3x3-101500 Not available Buy from Distributor
RT9026GSPPSOP-82500 Buy from Distributor
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