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TPS51216

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DDR2/3/3L/4 存储器电源解决方案同步降压控制器，2A LDO，缓冲基准

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TPS51216

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产品详情

Product type DDR Vin (min) (V) 3 Vin (max) (V) 28 Vout (min) (V) 0.7 Vout (max) (V) 1.8 Features Complete Solution, Eco Mode, S3/S5 Support Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (mA) 0.6 DDR memory type DDR, DDR2, DDR3, DDR3L, DDR4, LPDDR2, LPDDR3
Product type DDR Vin (min) (V) 3 Vin (max) (V) 28 Vout (min) (V) 0.7 Vout (max) (V) 1.8 Features Complete Solution, Eco Mode, S3/S5 Support Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (mA) 0.6 DDR memory type DDR, DDR2, DDR3, DDR3L, DDR4, LPDDR2, LPDDR3
WQFN (RUK) 20 9 mm² (3 mm × 3 mm)
  • 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
    • D-CAP™ Mode for Fast Transient Response
    • Selectable 300 kHz/400 kHz 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
  • APPLICATIONS
    • DDR2/DDR3/DDR3L Memory Power Supplies
    • SSTL_18, SSTL_15, SSTL_135 and HSTL Termination
  • 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
    • D-CAP™ Mode for Fast Transient Response
    • Selectable 300 kHz/400 kHz 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
  • APPLICATIONS
    • DDR2/DDR3/DDR3L Memory Power Supplies
    • SSTL_18, SSTL_15, SSTL_135 and HSTL Termination

The TPS51216 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 TPS51216 employs D-CAP™ mode coupled with 300 kHz/400 kHz frequencies for ease-of-use and fast transient response. 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 TPS51216 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 TPS51216 is available in a 20-pin, 3 mm × 3 mm, QFN package and is specified for ambient temperature from –40°C to 85°C.

The TPS51216 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 TPS51216 employs D-CAP™ mode coupled with 300 kHz/400 kHz frequencies for ease-of-use and fast transient response. 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 TPS51216 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 TPS51216 is available in a 20-pin, 3 mm × 3 mm, QFN package and is specified for ambient temperature from –40°C to 85°C.
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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 COMPLETE DDR2, DDR3 AND DDR3L MEMORY POWER SOLUTION 数据表 (Rev. A) 2013-4-4
选择指南 电源管理指南 2018 2018-7-31
更多文献资料 Computing DDR DC-DC Power Solutions 2012-8-22

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

仿真模型

TPS51216 PSpice Transient Model

SLUM395.ZIP (67 KB) - PSpice 模型
支持的产品和硬件
仿真模型

TPS51216 TINA-TI Transient Reference Design

SLUM459.TSC (648 KB) - TINA-TI 参考设计
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
WQFN (RUK) 20 Ultra Librarian
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