- 制造厂商：TI
- 产品类别：电源管理
- 技术类目：DDR 存储器电源 IC
- 功能描述：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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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.
- 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
- DDR memory type
- DDR, DDR2, DDR3, DDR3L, DDR4, LPDDR2, LPDDR3
- Control mode
- D-CAP, S4/S5
- Iout VDDQ (Max) (A)
- 20
- Iout VTT (Max) (A)
- 2
- Iq (Typ) (mA)
- 0.6
- Output
- VDDQ, VREF, VTT
- Vin (Min) (V)
- 3
- Vin (Max) (V)
- 28
- Features
- Complete Solution, Eco Mode, S3/S5 Support
- Rating
- Catalog
TPS51216的完整型号有：TPS51216RUKR、TPS51216RUKT，以下是这些产品的关键参数及官网采购报价：
TPS51216RUKR，工作温度：-40 to 85，封装：WQFN (RUK)-20，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS51216RUKR的批量USD价格：0.474（1000+）
TPS51216RUKT，工作温度：-40 to 85，封装：WQFN (RUK)-20，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS51216RUKT的批量USD价格：0.569（1000+）
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