TPS51216RUKR ,DDR2/3/3L/4 Memory Power Solution Synchronous Buck Controller, 2-A LDO, Buffered Reference 20-WQFN -40 to 85maximum ratings may cause permanent damage to the device. These are stress ratingsonly and function ..
TPS51216RUKT ,DDR2/3/3L/4 Memory Power Solution Synchronous Buck Controller, 2-A LDO, Buffered Reference 20-WQFN -40 to 85FEATURES DESCRIPTIONThe TPS51216 provides a complete power supply for2• Synchronous Buck Controller ..
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TPS51216RUKR-TPS51216RUKT
DDR2/3/3L/4 Memory Power Solution Synchronous Buck Controller, 2-A LDO, Buffered Reference 20-WQFN -40 to 85
V5IN
TPS51216
VREF
VBST
DRVH
DRVL
PGND
GND
MODE TRIP
PGOOD
VTTSNS
VTTGND
UDG-10138
VDDQ
PGND
PGND
5VIN
PGND
VIN
AGNDAGND
Powergood
TPS51216
www.ti.com SLUSAB9A –NOVEMBER 2010–REVISED APRIL 2013
Complete DDR2, DDR3 and DDR3L Memory Power Solution Synchronous Buck
Controller, 2-A LDO, Buffered Reference
Checkfor Samples: TPS51216
1FEATURES DESCRIPTIONThe TPS51216 providesa complete power supply for
Synchronous Buck Controller (VDDQ) DDR2, DDR3 and DDR3L memory systemsin the
– Conversion Voltage Range:3Vto28V lowest total cost and minimum space.It integratesa
Output Voltage Range: 0.7Vto 1.8V synchronous buck regulator controller (VDDQ) witha
2-A sink/source tracking LDO (VTT) and buffered low
– 0.8% VREF Accuracy noise reference (VTTREF). The TPS51216 employs
– D-CAP™ Mode for Fast Transient Response D-CAP™ mode coupled with 300 kHz/400 kHz
– Selectable 300 kHz/400 kHz Switching frequencies for ease-of-use and fast transient
Frequencies response. The VTTREF tracks VDDQ/2 within
excellent 0.8% accuracy. The VTT, which provides2-
– Optimized Efficiencyat Light and Heavy A sink/source peak current capabilities, requires only
Loads with Auto-skip Function 10-μF of ceramic capacitance. In addition, a
– Supports Soft-Offin S4/S5 States dedicated LDO supply inputis available.
OCL/OVP/UVP/UVLO Protections The TPS51216 provides rich useful functionsas well
– Powergood Output as excellent power supply performance.It supports
2-A LDO(VTT), Buffered Reference(VTTREF) flexible power state control, placing VTTat high-Zin and discharging VDDQ, VTT and VTTREF (soft-
– 2-A (Peak) Sink and Source Current off)in S4/S5 state. Programmable OCL with low-side
– Requires Only 10-μFof Ceramic Output MOSFET RDS(on) sensing, OVP/UVP/UVLO and
Capacitance thermal shutdown protections are also available.
Buffered, Low Noise, 10-mA VTTREF The TPS51216is availableina 20-pin,3 mm×3
Output mm, QFN package and is specified for ambient
0.8% VTTREF, 20-mV VTT Accuracy temperature from –40°Cto 85°C.
Support High-Zin S3 and Soft-Offin S4/S5 Thermal Shutdown 20-Pin,3 mm×3 mm, QFN Package
APPLICATIONS Power Supplies and HSTL
