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TPS59116-全套 DDR、DDR2 和 DDR3 存储器功率解决方案、用于嵌入式计算的同步降压控制器
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TI产品 - TPS59116介绍

TPS59116 - 全套 DDR、DDR2 和 DDR3 存储器功率解决方案、用于嵌入式计算的同步降压控制器

TPS59116是TI德州仪器公司的一款无产品，TPS59116是全套 DDR、DDR2 和 DDR3 存储器功率解决方案、用于嵌入式计算的同步降压控制器，本站介绍了TPS59116的封装应用图解、特点和优点、功能等，并给出了与TPS59116相关的TI元器件型号供参考。

TPS59116 - 全套 DDR、DDR2 和 DDR3 存储器功率解决方案、用于嵌入式计算的同步降压控制器 - 无 - DDR存储器电源终端 - 德州仪器

产品描述

The TPS59116 provides a complete power supply for DDR/SSTL-2, DDR2/SSTL-18, and DDR3 memory systems. It integrates a synchronous buck controller with a 3-A sink/source tracking linear regulator and buffered low noise reference. The TPS59116 offers the lowest total solution cost in systems where space is at a premium. The TPS59116 synchronous controller runs fixed 400-kHz pseudo-constant frequency PWM with an adaptive on-time control that can be configured in D-CAP™ Mode for ease of use and fastest transient response or in current mode to support ceramic output capacitors. The 3-A sink/source LDO maintains fast transient response only requiring 20-µF (2 × 10 µF) of ceramic output capacitance. In addition, the LDO supply input is available externally to significantly reduce the total power losses. The TPS59116 supports all of the sleep state controls placing VTT at high-Z in S3 (suspend to RAM) and discharging VDDQ, VTT and VTTREF (soft-off) in S4/S5 (suspend to disk). TPS59116 has all of the protection features including thermal shutdown and is offered in both a 20-pin HTSSOP PowerPAD™ package and 24-pin 4×4 QFN.

产品特性

  • Synchronous Buck Controller (VDDQ)
    • Wide-Input Voltage Range: 3.0-V to 28-V
    • D-CAP™ Mode with 100-ns Load Step Response
    • Current Mode Option Supports Ceramic Output Capacitors
    • Supports Soft-Off in S4/S5 States
    • Current Sensing from RDS(on) or Resistor
    • 2.5-V (DDR), 1.8-V (DDR2), Adjustable to 1.5-V (DDR3) or Output Range 0.75-V to 3.0-V
    • Equipped with Powergood, Overvoltage Protection and Undervoltage Protection
  • 3-A LDO (VTT), Buffered Reference (VREF)
    • Capable to Sink and Source 3 A
    • LDO Input Available to Optimize Power Losses
    • Requires Small 20-µF Ceramic Output Capacitor
    • Buffered Low Noise 10-mA VREF Output
    • Accuracy ±20 mV for both VREF and VTT
    • Supports High-Z in S3 and Soft-Off in S4/S5
    • Thermal Shutdown
  • APPLICATIONS
    • DDR/DDR2/DDR3/LPDDR3 Memory Power Supplies in Embedded Computing System
    • SSTL-2 SSTL-18 and HSTL Termination

D-CAP, PowerPAD are trademarks of Texas Instruments.

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