{"id":5194,"date":"2026-06-09T10:12:40","date_gmt":"2026-06-09T10:12:40","guid":{"rendered":"https:\/\/materialparts.com\/lp2998max-nopb\/"},"modified":"2026-06-09T10:12:40","modified_gmt":"2026-06-09T10:12:40","slug":"lp2998max-nopb","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/lp2998max-nopb\/","title":{"rendered":"LP2998MAX\/NOPB"},"content":{"rendered":"

Productos<\/h2>\n

LP2998MAX\/NOPB from TI is a DDR termination regulator generating VTT = VDDQ\/2 with 1A source\/sink capability. +\/-20mV accuracy. Supports DDR\/DDR2\/DDR3. Power-save mode for standby.<\/p>\n

Principio de funcionamiento<\/h2>\n

Senses VDDQ via external resistor divider and generates VTT = VDDQ\/2. Built-in error amplifier drives output stage to maintain VTT. Can source and sink current to terminate DDR bus. Power-save mode reduces quiescent current when VTT not needed.<\/p>\n

Pin Description<\/h2>\n\n\n\n\n\n\n
Pin<\/th>\nNombre<\/th>\nFunci\u00f3n<\/th>\n<\/tr>\n
1<\/td>\nVIN<\/td>\nInput 2.2-5.5V<\/td>\n<\/tr>\n
2<\/td>\nVDDQ<\/td>\nSense input<\/td>\n<\/tr>\n
5<\/td>\nVTT<\/td>\nTermination output<\/td>\n<\/tr>\n
7<\/td>\nSAVE<\/td>\nPower save control<\/td>\n<\/tr>\n<\/table>\n

Aplicaciones<\/h2>\n
    \n
  • DDR memory VTT supply<\/li>\n
  • DDR2\/DDR3 bus termination<\/li>\n<\/ul>\n

    Alternative Models<\/h2>\n\n\n\n
    Fabricante<\/th>\nN\u00famero de pieza<\/th>\nNotas<\/th>\n<\/tr>\n
    TI<\/td>\nTPS51200DRCR<\/td>\nSimilar DDR term reg<\/td>\n<\/tr>\n<\/table>","protected":false},"excerpt":{"rendered":"

    Product Overview LP2998MAX\/NOPB from TI is a DDR termination regulator generating VTT = VDDQ\/2 with 1A source\/sink capability. +\/-20mV accuracy. Supports DDR\/DDR2\/DDR3. Power-save mode for standby. Working Principle Senses VDDQ via external resistor divider and generates VTT = VDDQ\/2. Built-in error amplifier drives output stage to maintain VTT. Can source and sink current to terminate […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,32],"tags":[],"chip_brand":[138],"class_list":["post-5194","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-ti"],"acf":{"brief_explanation":"DDR termination regulator, VTT=VDDQ\/2, 1A, SOIC-8","date_code":"","package_case":"SOIC-8 (4.9 x 3.9 x 1.5mm, 1.27mm pitch)","in_stock":11863,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lp2998.pdf","price":"$1.52 @ 1ku","product_introduction":"LP2998MAX\/NOPB from TI is a DDR termination regulator generating VTT = VDDQ\/2 with 1A source\/sink capability. +\/-20mV accuracy. Supports DDR\/DDR2\/DDR3. Power-save mode for standby.","working_principle":"Senses VDDQ via external resistor divider and generates VTT = VDDQ\/2. Built-in error amplifier drives output stage to maintain VTT. Can source and sink current to terminate DDR bus. Power-save mode reduces quiescent current when VTT not needed.","pin_description":"
    Pin<\/th>Name<\/th>Function<\/th><\/tr>
    1<\/td>VIN<\/td>Input 2.2-5.5V<\/td><\/tr>
    2<\/td>VDDQ<\/td>Sense input<\/td><\/tr>
    5<\/td>VTT<\/td>Termination output<\/td><\/tr>
    7<\/td>SAVE<\/td>Power save control<\/td><\/tr><\/table>","application_scenarios":"
    • DDR memory VTT supply<\/li>
    • DDR2\/DDR3 bus termination<\/li><\/ul>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Notes<\/th><\/tr>
      TI<\/td>TPS51200DRCR<\/td>Similar DDR term reg<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/5194","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=5194"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/5194\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=5194"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=5194"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=5194"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=5194"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}