TPS51716 Series
Complete DDR2/3/3L/4 Memory Power Solution Synchronous Buck Controller, 2-A LDO
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Operating Temperature▲▼ | Operating Temperature▲▼ | Package / Case | Mounting Type | Applications | Voltage - Output▲▼ | Voltage - Output▲▼ | Number of Outputs▲▼ | Supplier Device Package | Voltage - Input▲▼ | Voltage - Input▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|
-40 °C | 85 °C | 20-WFQFN Exposed Pad | Surface Mount | Controller, DDR | 1.7999999523162842 V | 0.699999988079071 V | 3 ul | 20-WQFN (3x3) | 3 V | 28 V |
Key Features
• Synchronous Buck Controller (VDDQ)Conversion Voltage Range: 3 to 28 VOutput Voltage Range: 0.7 to 1.8 V0.8% VREFAccuracyD-CAP2™ Mode for Ceramic Output CapacitorsSelectable 500-kHz/670-kHz Switching FrequenciesOptimized Efficiency at Light and Heavy Loads With Auto-Skip FunctionSupports Soft-Off in S4/S5 StatesOCL/OVP/UVP/UVLO ProtectionsPowergood Output2-A LDO (VTT), Buffered Reference (VTTREF)2-A (Peak) Sink and Source CurrentRequires Only 10-µF of Ceramic Output CapacitanceBuffered, Low Noise, 10-mA VTTREF Output0.8% VTTREF, 20-mV VTT AccuracySupport High-Z in S3 and Soft-Off in S4/S5Thermal Shutdown20-Pin, 3 mm × 3 mm, WQFN PackageSynchronous Buck Controller (VDDQ)Conversion Voltage Range: 3 to 28 VOutput Voltage Range: 0.7 to 1.8 V0.8% VREFAccuracyD-CAP2™ Mode for Ceramic Output CapacitorsSelectable 500-kHz/670-kHz Switching FrequenciesOptimized Efficiency at Light and Heavy Loads With Auto-Skip FunctionSupports Soft-Off in S4/S5 StatesOCL/OVP/UVP/UVLO ProtectionsPowergood Output2-A LDO (VTT), Buffered Reference (VTTREF)2-A (Peak) Sink and Source CurrentRequires Only 10-µF of Ceramic Output CapacitanceBuffered, Low Noise, 10-mA VTTREF Output0.8% VTTREF, 20-mV VTT AccuracySupport High-Z in S3 and Soft-Off in S4/S5Thermal Shutdown20-Pin, 3 mm × 3 mm, WQFN Package
Description
AI
The TPS51716 provides a complete power supply for DDR2, DDR3, DDR3L, LPDDR3, and DDR4 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 TPS51716 employs D-CAP2 mode coupled with 500 kHz or 670 kHz operating frequencies that supports ceramic output capacitors without an external compensation circuit. The VTTREF tracks VDDQ/2 with excellent 0.8% accuracy. The VTT, which provides 2-A sink/source peak current capabilities, requires only 10 µF of ceramic capacitance. In addition, the device features a dedicated LDO supply input.
The TPS51716 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. It includes programmable OCL with low-side MOSFET RDS(on)sensing, OVP/UVP/UVLO and thermal shutdown protections.
TI offers the TPS51716 in a 20-pin, 3 mm × 3 mm, WQFN package and specifies it for an ambient temperature range between –40°C and 85°C.
The TPS51716 provides a complete power supply for DDR2, DDR3, DDR3L, LPDDR3, and DDR4 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 TPS51716 employs D-CAP2 mode coupled with 500 kHz or 670 kHz operating frequencies that supports ceramic output capacitors without an external compensation circuit. The VTTREF tracks VDDQ/2 with excellent 0.8% accuracy. The VTT, which provides 2-A sink/source peak current capabilities, requires only 10 µF of ceramic capacitance. In addition, the device features a dedicated LDO supply input.
The TPS51716 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. It includes programmable OCL with low-side MOSFET RDS(on)sensing, OVP/UVP/UVLO and thermal shutdown protections.
TI offers the TPS51716 in a 20-pin, 3 mm × 3 mm, WQFN package and specifies it for an ambient temperature range between –40°C and 85°C.