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LP2998

PinoutSpecificationsInput Min Voltage1.5 VoltInput Max Voltage5.5 VoltOutput Current1500 mAStandardsDDR, DDR-IIExternal Components3On/Off PinYesReference Output0.9 VoltThermal ProtectionYesSpecial FeaturesSuspend to RAM shutdownError FlagNoRegTypeLDOTemperature Min-40 deg CTemperature Max125 deg C...

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LP2998: PinoutSpecificationsInput Min Voltage1.5 VoltInput Max Voltage5.5 VoltOutput Current1500 mAStandardsDDR, DDR-IIExternal Components3On/Off PinYesReference Output0.9 VoltThermal ProtectionYesSpecial F...

LP2998 Data Sheet

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Part Number:
LP2998
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/18

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Product Details

Description



Pinout




Specifications

Input Min Voltage1.5 Volt
Input Max Voltage5.5 Volt
Output Current1500 mA
StandardsDDR, DDR-II
External Components3
On/Off PinYes
Reference Output0.9 Volt
Thermal ProtectionYes
Special FeaturesSuspend to RAM shutdown
Error FlagNo
RegTypeLDO
Temperature Min-40 deg C
Temperature Max125 deg C
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Description

The LP2998 linear regulator is designed to meet JEDEC SSTL-2 and JEDEC SSTL-18 specifications for termination of DDR1-SDRAM and DDR-II memory. The device contains a high-speed operational amplifier to provide excellent response to load transients. The output stage prevents shoot through while delivering 1.5A continuous current as required for DDR1-SDRAM termination, and 0.5A continuous current as required for DDR-II 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, while VREF remains active. A power savings advantage can be obtained in this mode through lower quiescent current.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LP2998MA CS065 2 34108 59 0 3862000 1 1095853045
LP2998MAE CS065 2 34108 59 0 3862000 1 1095853045
LP2998MAX CS065 2 34108 59 0 3862000 1 1095853045
LP2998MR CS065 2 34108 59 0 3862000 1 1095853045
LP2998MRE CS065 2 34108 59 0 3862000 1 1095853045
LP2998MRX CS065 2 34108 59 0 3862000 1 1095853045

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


Application Notes

Title Size in Kbytes Date
AN-1813: Application Note 1813 LP2998 Evaluation Board 975 Kbytes 10-Mar-08 Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.

More Application Notes

Title Size in Kbytes Date
AN-1241: Application Note 1241 LP2995 Evaluation Board 373 Kbytes 25-Sep-02 Download
AN-1268: Application Note 1268 LP2996 Evaluation Board 67 Kbytes 5-Dec-02 Download
AN-1254: Application Note 1254 DDR-SDRAM Termination Simplified Using a Linear Regulator 49 Kbytes 1-Oct-02 Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.




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