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LP2998 Series

1.5-A DDR termination regulator with shutdown pin

Manufacturer: Texas Instruments

Catalog(6 parts)

PartOperating TemperatureOperating TemperaturePackage / CasePackage / CaseSupplier Device PackageNumber of OutputsVoltage - InputVoltage - InputMounting TypeApplicationsPackage / CasePackage / CaseBoard TypeChannels per ICUtilized IC / PartRegulator TypeCurrent - OutputSupplied ContentsQualificationGrade
Texas Instruments
LP2998MAX/NOPB
- Converter, DDR Voltage Regulator IC 1 Output 8-SOIC
125 °C
-40 °C
0.003899999894201755 m
8-SOIC
8-SOIC
1 ul
5.5 V
2.200000047683716 V
Surface Mount
Converter, DDR
Texas Instruments
LP2998MRE/NOPB
- Converter, DDR Voltage Regulator IC 1 Output 8-SO PowerPad
125 °C
-40 °C
8-PowerSOIC
8-SO PowerPad
1 ul
5.5 V
2.200000047683716 V
Surface Mount
Converter, DDR
0.003899999894201755 m
0.003911599982529879 m
Texas Instruments
LP2998EVAL
LP2998 1 - Single Channels per IC Positive Fixed Linear Voltage Regulator Evaluation Board
5.5 V
2.200000047683716 V
Fully Populated
1 ul
LP2998
Positive Fixed
1.5 A
Board(s)
Texas Instruments
LP2998QMRX/NOPB
- Converter, DDR Voltage Regulator IC 1 Output 8-SO PowerPad
125 °C
-40 °C
8-PowerSOIC
8-SO PowerPad
1 ul
5.5 V
2.200000047683716 V
Surface Mount
Converter, DDR
0.003899999894201755 m
0.003911599982529879 m
AEC-Q100
Automotive
Texas Instruments
LP2998MAE/NOPB
- Converter, DDR Voltage Regulator IC 1 Output 8-SOIC
125 °C
-40 °C
0.003899999894201755 m
8-SOIC
8-SOIC
1 ul
5.5 V
2.200000047683716 V
Surface Mount
Converter, DDR
Texas Instruments
LP2998MR/NOPB
- Converter, DDR Voltage Regulator IC 1 Output 8-SO PowerPad
125 °C
-40 °C
8-PowerSOIC
8-SO PowerPad
1 ul
5.5 V
2.200000047683716 V
Surface Mount
Converter, DDR
0.003899999894201755 m
0.003911599982529879 m

Key Features

AEC-Q100 Test Guidance with the following results(SO PowerPAD-8):Device HBM ESD Classification Level H1CJunction Temperature Range –40°C to 125°C1.35 V Minimum VDDQSource and Sink CurrentLow Output Voltage OffsetNo External Resistors RequiredLinear TopologySuspend to Ram (STR) FunctionalityLow External Component CountThermal ShutdownAEC-Q100 Test Guidance with the following results(SO PowerPAD-8):Device HBM ESD Classification Level H1CJunction Temperature Range –40°C to 125°C1.35 V Minimum VDDQSource and Sink CurrentLow Output Voltage OffsetNo External Resistors RequiredLinear TopologySuspend to Ram (STR) FunctionalityLow External Component CountThermal Shutdown

Description

AI
The LP2998 linear regulator is designed to meet JEDEC SSTL-2 and JEDEC SSTL-18 specifications for termination of DDR-SDRAM and DDR2 memory. The device also supports DDR3 and DDR3L VTT bus termination with VDDQmin of 1.35 V. The device contains a high-speed operational amplifier to provide excellent response to load transients. The output stage prevents shoot through while delivering 1.5 A continuous current and transient peaks up to 3 A in the application as required for DDR-SDRAM termination. The LP2998 also incorporates a VSENSE pin to provide superior load regulation and a VREFoutput as a reference for the chipset and DIMMs. An additional feature found on the LP2998 is an active low shutdown (SD) pin that provides Suspend To RAM (STR) functionality. WhenSDis pulled low the VTToutput will tri-state providing a high impedance output, but, VREFwill remain active. A power savings advantage can be obtained in this mode through lower quiescent current. The LP2998 linear regulator is designed to meet JEDEC SSTL-2 and JEDEC SSTL-18 specifications for termination of DDR-SDRAM and DDR2 memory. The device also supports DDR3 and DDR3L VTT bus termination with VDDQmin of 1.35 V. The device contains a high-speed operational amplifier to provide excellent response to load transients. The output stage prevents shoot through while delivering 1.5 A continuous current and transient peaks up to 3 A in the application as required for DDR-SDRAM termination. The LP2998 also incorporates a VSENSE pin to provide superior load regulation and a VREFoutput as a reference for the chipset and DIMMs. An additional feature found on the LP2998 is an active low shutdown (SD) pin that provides Suspend To RAM (STR) functionality. WhenSDis pulled low the VTToutput will tri-state providing a high impedance output, but, VREFwill remain active. A power savings advantage can be obtained in this mode through lower quiescent current.