LP2997MRX ,DDR-II Termination RegulatorElectrical CharacteristicsSpecifications with standard typeface are for T = 25°C and limits in bold ..
LP2997MRX ,DDR-II Termination RegulatorApplicationsAn additional feature found on the LP2997 is an active lowshutdown (SD) pin that provid ..
LP2997MRX ,DDR-II Termination RegulatorFeaturesn Source and sink currentThe LP2997 linear regulator is designed to meet the JEDECSSTL-18 s ..
LP2997MX ,DDR-II Termination RegulatorLP2997 DDR-II Termination RegulatorJune 2004LP2997DDR-II Termination Regulator
LP2997MX/NOPB ,DDR-II Termination Regulator 8-SOIC 0 to 125FEATURES DESCRIPTIONThe LP2997 linear regulator is designed to meet the2• Source and Sink CurrentJE ..
LP2998MAX , LP2998 DDR-I and DDR-II Termination Regulator
LT1009CZ ,2.5V Reference
LT1009CZ#PBF ,2.5V Reference
LT1009CZ#PBF ,2.5V Reference
LT1009IDR ,2.5-V Integrated Reference Circuit(1)ORDERING INFORMATION(2)T PACKAGE ORDERABLE PART NUMBER TOP-SIDE MARKINGATube of 75 LT1009CDSOIC ..
LT1009ILPR ,2.5-V Integrated Reference CircuitMAXIMUM RATINGSover operating free-air temperature range (unless otherwise noted)MIN MAX UNITI Reve ..
LT1009IPWR ,2.5-V Integrated Reference CircuitMAXIMUM RATINGSover operating free-air temperature range (unless otherwise noted)MIN MAX UNITI Reve ..
LP2997MRX-LP2997MX/NOPB
DDR-II Termination Regulator 8-SOIC 0 to 125
VTT
LP2997INDDQ
VREF
AVIN SENSE
GND+ +
AVIN = 2.5VSDDDQ = 1.8V
CIN C
CREF
LP2997
LP2997 DDR-II Termination Regulator
Checkfor Samples: LP2997
1FEATURES DESCRIPTIONThe LP2997 linear regulatoris designedto meet the
Source and Sink Current JEDEC SSTL-18 specifications for termination of
• Low Output Voltage Offset DDR-II memory. The device containsa high-speed
No External Resistors Required operational amplifierto provide excellent responseto
load transients. The output stage prevents shoot
• Linear Topology through while delivering 500mA continuous current
• Suspendto Ram (STR) Functionality and transient peaksupto 900mAin the applicationas
• Low External Component Count required for DDR-II SDRAM termination. The LP2997
also incorporatesa VSENSE pinto provide superior
• Thermal Shutdown load regulation
• Availablein SOIC-8, SO PowerPAD-8 Packages the chipset and additional
APPLICATIONSactive low shutdown
• DDR-II Termination Voltage To RAM (STR)
SSTL-18 Termination the VTT output
impedance output,
power savings
mode through
Typical Application Circuit
Figure1. Typical Application Circuit
