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Texas Instruments TPS51100DGQ — Power Management (PMIC / Gate Driver)
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Texas Instruments / Power Management (PMIC / Gate Driver)

TI TPS51100DGQ DDR Termination Regulator, 4.75-5.25V Input

MPN TPS51100DGQ
End of Life Spot Stock · 24-48h Dispatch 100% Original Sealed

Texas Instruments TPS51100DGQ, DDR Converter Regulator, 1 Output, 4.75V~5.25V Input, 1.2V~3.6V Output, Surface Mount, 10-HVSSOP, -40°C~85°C, Tube.

In Stock: 55 pcs
MOQ: 1 pcs
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100% Original Sealed 45x Microscope QC 30-Day Warranty · COC USD T/T & PI · DAP/DDP
[SPEC] Essential Parameters Snapshot Full Specifications (8)
Package / Case 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)

Full Technical Specifications

8 Parameters
TPS51100DGQ specifications
Parameter / AttributeSpecification / Value
MountingSurface Mount
Voltage - input4.75V ~ 5.25V
Voltage - output1.2V ~ 3.6V
I/O channels1
Operating temperature-40°C ~ 85°C
PackageTube
ApplicationsConverter, DDR
Case10-PowerTFSOP, 10-MSOP (0.118\", 3.00mm Width)
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Technical Details & Description

DDR termination regulator for the 5 V rail

The Texas Instruments TPS51100DGQ is a single-output DDR termination regulator designed to convert a 4.75 V to 5.25 V input rail into a programmable output from 1.2 V to 3.6 V. It is explicitly built for DDR memory termination (VTT) in converter applications, not a general-purpose step-down converter.

Input and output — what drives the BOM fit

Input range is 4.75 V to 5.25 V; output range is 1.2 V to 3.6 V.

It is not qualified to AEC-Q100, so it is not the pick for under-hood automotive or engine-bay environments where extended temperature and vibration specs are required.

Frequently asked questions

Can TPS51100DGQ be used for DDR4?

Yes, the output can be set to 1.2 V, which is the VTT level for DDR4 termination. The part is a DDR converter regulator, so it is suited for DDR4 memory power.

What is the difference between TPS51100DGQ and TPS51100DGQR?

The difference is packaging: TPS51100DGQ ships in a Tube, while the DGQR suffix typically indicates Tape & Reel packaging. Electrically they are identical.

What is the closest functional second-source to TPS51100DGQ?

The TPS53317RGBR is a peer DDR converter from TI with a single output, but it operates from a 1.0 V input supply and uses the D-CAP+ control scheme. It is not a pin-for-pin replacement — verify the pinout and compensation before substituting.

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