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TPS51216

現行

DDR2/3/3L/4 記憶體電源解決方案同步降壓控制器、2-A LDO、緩衝參考電壓

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產品規格表

TPS51216

現行
產品規格表 立即訂購

產品詳細資料

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 Product type DDR DDR memory type DDR, DDR2, DDR3, DDR3L, DDR4, LPDDR2, LPDDR3
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 Product type DDR DDR memory type DDR, DDR2, DDR3, DDR3L, DDR4, LPDDR2, LPDDR3
WQFN (RUK) 20 9 mm² 3 x 3
  • 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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類型 標題 日期
* Data sheet COMPLETE DDR2, DDR3 AND DDR3L MEMORY POWER SOLUTION datasheet (Rev. A) 2013年 4月 4日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
More literature Computing DDR DC-DC Power Solutions 2012年 8月 22日

設計與開發

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模擬型號

TPS51216 PSpice Transient Model

SLUM395.ZIP (67 KB) - PSpice Model
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模擬型號

TPS51216 TINA-TI Transient Reference Design

SLUM459.TSC (648 KB) - TINA-TI Reference Design
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WQFN (RUK) 20 Ultra Librarian
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