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LP2996MR Datasheet(PDF) 1 Page - Texas Instruments |
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LP2996MR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 26 page VTT LP2996 PVIN VDDQ VREF AVIN VREF = 1.25V VSENSE GND PF + + + VDDQ = 2.5V VDD = 2.5V VTT = 1.25V 220PF SD SD 0.01PF LP2996-N www.ti.com SNOSA40J – NOVEMBER 2002 – REVISED MARCH 2013 LP2996-N DDR Termination Regulator Check for Samples: LP2996-N 1 FEATURES DESCRIPTION The LP2996-N linear regulator is designed to meet 2 • Source and Sink Current the JEDEC SSTL-2 specifications for termination of • Low Output Voltage Offset DDR-SDRAM. The device contains a high-speed • No External Resistors Required operational amplifier to provide excellent response to load transients. The output stage prevents shoot • Linear Topology through while delivering 1.5A continuous current and • Suspend to Ram (STR) Functionality transient peaks up to 3A in the application as • Low External Component Count required for DDR-SDRAM termination. The LP2996-N also incorporates a VSENSE pin to provide superior • Thermal Shutdown load regulation and a VREF output as a reference for • Available in SOIC-8, SO PowerPAD-8 or the chipset and DIMMs. WQFN-16 packages An additional feature found on the LP2996-N is an active low shutdown (SD) pin that provides Suspend APPLICATIONS To RAM (STR) functionality. When SD is pulled low • DDR-I and DDR-II Termination Voltage the VTT output will tri-state providing a high • SSTL-2 and SSTL-3 Termination impedance output, but, VREF will remain active. A power savings advantage can be obtained in this • HSTL Termination mode through lower quiescent current. Typical Application Circuit 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2002–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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