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STD Datasheet(Fiches technique) 1 Page - Texas Instruments

Numéro de pièce STD
Description  Using the TPS51916EVM-746 Complete DDR2, DDR3
Télécharger  23 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
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User
's Guide
SLUU526
– August 2011
Using the TPS51916EVM-746 Complete DDR2, DDR3,
DDR3L, and DDR4 Memory Power Solution Synchronous
Buck Controller, 2-A LDO, Buffered Reference
The TPS51916EVM-746 evaluation module (EVM) allows users to evaluate the performance of the
TPS51916 low-dropout (LDO) regulator. The TPS51916 provides a complete power supply for DDR2,
DDR3, DDR3L, and DDR4 memory system in the lowest total cost and minimum space. TPS51916
integrates a synchronous buck controller (VDDQ) with a 2-A sink/source tracking LDO (VTT) and buffered,
low-noise reference (VTTREF).
Contents
1
Description
................................................................................................................... 3
1.1
Typical Applications
................................................................................................ 3
1.2
Features
............................................................................................................. 3
2
Electrical Performance Specifications
.................................................................................... 3
3
Schematic
.................................................................................................................... 5
4
Test Setup
................................................................................................................... 6
4.1
Test Equipment
..................................................................................................... 6
4.2
Recommended Test Setup
....................................................................................... 7
5
Configurations
............................................................................................................... 8
5.1
S3, S5 Enable Selection
.......................................................................................... 8
6
Test Procedure
.............................................................................................................. 8
6.1
Line/Load Regulation and Efficiency Measurement Procedure
.............................................. 8
6.2
List of Test Points
.................................................................................................. 8
6.3
Equipment Shutdown
.............................................................................................. 9
7
Performance Data and Typical Characteristic Curves
................................................................. 9
7.1
DDR3 VDDQ Efficiency
........................................................................................... 9
7.2
DDR3 VDDQ Load Regulation
.................................................................................. 10
7.3
DDR3 VDDQ Line Regulation
.................................................................................. 10
7.4
DDR3 VTT Load Regulation
.................................................................................... 11
7.5
DDR3 VTTREF Load Regulation
............................................................................... 11
7.6
DDR3 VTT Dropout Voltage
.................................................................................... 12
7.7
DDR3 S5 Enable Turnon/Turnoff
............................................................................... 12
7.8
S5 Enable Turnon with 1-V Prebias at VDDQ
................................................................ 13
7.9
DDR3 S3 Enable Turnon/ Turnoff (S5 is ON)
................................................................ 13
7.10
DDR3 VDDQ Output Ripple
..................................................................................... 14
7.11
DDR3 VDDQ Switching Node
.................................................................................. 14
7.12
DDR3 VDDQ Output Transient
................................................................................. 15
7.13
DDR3 VTT Transient With 1.5-A Sinking and Sourcing Current
........................................... 15
7.14
Thermal Image
.................................................................................................... 16
7.15
DDR3 VDDQ Bode Plot
......................................................................................... 16
7.16
DDR3 VTT Bode Plot
............................................................................................ 17
8
EVM Assembly Drawing and PCB Layout
............................................................................. 17
9
Bill of Materials
............................................................................................................. 21
List of Figures
D-CAP2 is a trademark of Texas Instruments.
1
SLUU526
– August 2011
Using the TPS51916EVM-746 Complete DDR2, DDR3, DDR3L, and DDR4
Memory Power Solution Synchronous Buck Controller, 2-A LDO, Buffered
Submit Documentation Feedback
Copyright
© 2011, Texas Instruments Incorporated
Reference


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