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TPS51916 - 产品图解:
TPS51916-DDR2、DDR3 和 DDR3L 内存功耗解决方案同步降压控制器
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TI产品 - TPS51916介绍
TPS51916 - DDR2、DDR3 和 DDR3L 内存功耗解决方案同步降压控制器

TPS51916是TI公司的一款无产品,TPS51916是DDR2、DDR3 和 DDR3L 内存功耗解决方案同步降压控制器,本页介绍了TPS51916的产品说明、应用、特性等,并给出了与TPS51916相关的TI元器件型号供参考。

TPS51916 - DDR2、DDR3 和 DDR3L 内存功耗解决方案同步降压控制器 - 无 - DDR存储器电源终端 - TI公司(Texas Instruments,德州仪器)

产品描述

The TPS51916 provides a complete power supply for DDR2, DDR3 and DDR3L memory systems in the lowest total cost and minimum space. It integrates a synchronous buck regulator controller (VDDQ) with a 2-A sink/source tracking LDO (VTT) and buffered low noise reference (VTTREF). The TPS51916 employs D-CAP? mode coupled with 300kHz/400kHz frequencies for ease-of-use and fast transient response or D-CAP2? mode coupled with higher 500kHz/670kHz frequencies to support ceramic output capacitor without an external compensation circuit. The VTTREF tracks VDDQ/2 within excellent 0.8% accuracy. The VTT, which provides 2-A sink/source peak current capabilities, requires only 10-μF of ceramic capacitance. In addition, a dedicated LDO supply input is available.

The TPS51916 provides rich useful functions as well as excellent power supply performance. It supports flexible power state control, placing VTT at high-Z in S3 and discharging VDDQ, VTT and VTTREF (soft-off) in S4/S5 state. Programmable OCL with low-side MOSFET RDS(on) sensing, OVP/UVP/UVLO and thermal shutdown protections are also available.

The TPS51916 is available in a 20-pin, 3 mm × 3 mm, QFN package and is specified for ambient temperature from –40°C to 85°C.

产品特性

  • Synchronous Buck Controller (VDDQ)
    • Conversion Voltage Range: 3 V to 28 V
    • Output Voltage Range: 0.7 V to 1.8 V
    • 0.8% VREF Accuracy
    • Selectable Control ArchitectureD-CAP Mode for Fast Transient ResponseD-CAP2 Mode for Ceramic Output Capacitors
    • Selectable 300kHz/ 400kHz/ 500kHz/ 670kHz Switching Frequencies
    • Optimized Efficiency at Light and Heavy Loads with Auto-skip Function
    • Supports Soft-Off in S4/S5 States
    • OCL/OVP/UVP/UVLO Protections
    • Powergood Output
  • 2-A LDO(VTT), Buffered Reference(VTTREF)
    • 2-A (Peak) Sink and Source Current
    • Requires Only 10-μF of Ceramic Output Capacitance
    • Buffered, Low Noise, 10-mA VTTREF Output
    • 0.8% VTTREF, 20-mV VTT Accuracy
    • Support High-Z in S3 and Soft-Off in S4/S5
  • Thermal Shutdown
  • 20-Pin, 3 mm × 3 mm, QFN Package

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