LP2998-Q1

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用于汽車應用的 DDR 終端穩壓器

產品詳情

Product type DDR Vin (min) (V) 1.35 Vin (max) (V) 5.5 Vout (min) (V) 0.656 Vout (max) (V) 0.698 Features Shutdown Pin for S3 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (mA) 0.32 DDR memory type DDR, DDR2, DDR3, DDR3L
Product type DDR Vin (min) (V) 1.35 Vin (max) (V) 5.5 Vout (min) (V) 0.656 Vout (max) (V) 0.698 Features Shutdown Pin for S3 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (mA) 0.32 DDR memory type DDR, DDR2, DDR3, DDR3L
HSOIC (DDA) 8 29.4 mm2 4.9 x 6
  • AEC-Q100 Test Guidance with the following results
    (SO PowerPAD-8):
    • Device HBM ESD Classification Level H1C
    • Junction Temperature Range –40°C to 125°C
  • 1.35 V Minimum VDDQ
  • Source and Sink Current
  • Low Output Voltage Offset
  • No External Resistors Required
  • Linear Topology
  • Suspend to Ram (STR) Functionality
  • Low External Component Count
  • Thermal Shutdown
  • AEC-Q100 Test Guidance with the following results
    (SO PowerPAD-8):
    • Device HBM ESD Classification Level H1C
    • Junction Temperature Range –40°C to 125°C
  • 1.35 V Minimum VDDQ
  • Source and Sink Current
  • Low Output Voltage Offset
  • No External Resistors Required
  • Linear Topology
  • Suspend to Ram (STR) Functionality
  • Low External Component Count
  • Thermal Shutdown

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.

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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類型 標題 下載最新的英語版本 日期
* 數據表 LP2998/LP2998-Q1 DDR Termination Regulator 數據表 (Rev. K) PDF | HTML 2014年 8月 20日
EVM 用戶指南 AN-1813 LP2998 Evaluation Board (Rev. A) 2013年 5月 7日

設計和開發

如需其他信息或資源，請點擊以下任一標題進入詳情頁面查看（如有）。

評估板

LP2998EVAL — 用于 LP2998 的評估板

The LP2998 evaluation board is designed to provide the design Engineer with a fully functional prototype system in which to evaluate the LP2998 in both a static environment and with a complete memory system.

用戶指南: PDF
TI.com 上無現貨
參考設計

TIDA-00275 — 汽車儀表組寬 Vin 電源設計

此 TI 參考設計是一種汽車儀表組寬 Vin 電源解決方案，包含一個帶有集成 LDO 的寬 Vin 降壓轉換器。   還包含一個高效同步降壓直流到直流轉換器。另外還包含一個線性穩壓器，旨在使 DDR 終端符合 JEDEC SSTL-2 和 JEDEC SSTL-18 規范。此儀表組電源解決方案已針對中端儀表組市場進行優化，整個解決方案支持 6.0V-40V 系統功能，可承受啟動停止和負載突降情況。前端降壓轉換器 (TPS65320-Q1) 能夠支持 4.5V 冷啟動情況。
測試報告: PDF
原理圖: PDF
封裝 引腳 CAD 符號、封裝和 3D 模型
HSOIC (DDA) 8 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息：
  • 制造廠地點
  • 封裝廠地點

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