TYPE | DESCRIPTION |
---|
Mounting Style | Surface Mount |
Number of Pins | 8 Pin |
Case/Package | SOIC-8 |
Number of Outputs | 1 Output |
Output Voltage | 1.359 V |
Output Current | 1.5 A |
Number of Positions | 8 Position |
Quiescent Current | 320 µA |
Input Voltage (Max) | 5.5 V |
Input Voltage (Min) | 2.2 V |
Output Current (Max) | 1.5 A |
Operating Temperature (Max) | 125 ℃ |
Operating Temperature (Min) | -40 ℃ |
Input Voltage | 2.2V ~ 5.5V |
TYPE | DESCRIPTION |
---|
Product Lifecycle Status | Active |
Packaging | Tube |
Size-Length | 4.9 mm |
Size-Width | 3.9 mm |
Size-Height | 1.45 mm |
Operating Temperature | -40℃ ~ 125℃ (TJ) |
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 VDDQ min 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 VREF output 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. When SD is pulled low the VTT output will tri-state providing a high impedance output, but, VREF will remain active. A power savings advantage can be obtained in this mode through lower quiescent current.
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