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LP2996A

ACTIVO

Regulador de terminación DDR de 1,5 A con pin de desconexión para DDR2/3/3L

Detalles del producto

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 Catalog Operating temperature range (°C) 0 to 125 Iq (typ) (mA) 0.32 Product type DDR DDR memory type DDR, DDR2, DDR3, DDR3L
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 Catalog Operating temperature range (°C) 0 to 125 Iq (typ) (mA) 0.32 Product type DDR DDR memory type DDR, DDR2, DDR3, DDR3L
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • 1.35V 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
  • LP2998/8Q recommended for
    –40°C to 125°C
  • 1.35V 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
  • LP2998/8Q recommended for
    –40°C to 125°C

The LP2996A linear regulator is designed to meet the JEDEC SSTL-2 specifications for termination of DDR-SDRAM. The device also supports DDR2, DDR3 and DDR3L VTT bus termination with VDDQ min of 1.35V. 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 and transient peaks up to 3A in the application as required for DDR-SDRAM termination. The LP2996A 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 LP2996A 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 LP2996A linear regulator is designed to meet the JEDEC SSTL-2 specifications for termination of DDR-SDRAM. The device also supports DDR2, DDR3 and DDR3L VTT bus termination with VDDQ min of 1.35V. 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 and transient peaks up to 3A in the application as required for DDR-SDRAM termination. The LP2996A 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 LP2996A 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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Documentación técnica

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Tipo Título Fecha
* Data sheet LP2996A DDR Termination Regulator datasheet PDF | HTML 27 jun 2014
Application note Limiting DDR Termination Regulators’ Inrush Current 23 ago 2016

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

LP2998EVAL — Placa de evaluación para LP2998

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.

Guía del usuario: PDF
Modelo de simulación

LP2996A PSpice Transient Model

SNOM562.ZIP (85 KB) - PSpice Model
Modelo de simulación

LP2996A Unencrypted PSpice Transient Model

SNOM564.ZIP (7 KB) - PSpice Model
Diseños de referencia

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Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDEP0067 — Diseño de referencia de solución de potencia del procesador 66AK2Gx DSP + ARM

This reference design is  based on the 66AK2Gx multicore System-on-Chip (SoC) processor and companion TPS65911 power management integrated circuit (PMIC) which includes power supplies and power sequencing for the 66AK2Gx processor in a single device. This power solution design also includes (...)
Design guide: PDF
Esquema: PDF
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HSOIC (DDA) 8 Ultra Librarian

Pedidos y calidad

Información incluida:
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  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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