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Texas Instruments TPS53311RGTT — Discrete Semiconductors

TPS53311RGTT Texas Instruments Buck Regulator, 3A, 1.1MHz

MPNTPS53311RGTT
End of Life

Texas Instruments SmoothPWM™, Eco-Mode™ series, TPS53311RGTT step-down buck regulator, adjustable output, 3A, 1.1MHz, 16-VQFN (3x3), surface mount.

$3.04Ref. price · indicative, final on quote
Texas Instruments TPS53311RGTT datasheet (PDF)
Packaging16-VFQFN Exposed Pad
RoHSROHS3 Compliant
SeriesSmoothPWM™, Eco-Mode™
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS53311RGTT specifications
ParameterValue
SeriesSmoothPWM™, Eco-Mode™
Output typeAdjustable
MountingSurface Mount
Voltage - input2.9V
Voltage - output5.04V
Voltage - output (Min (Fixed))0.6V
Output current3A
Frequency1.1MHz
I/O channels1
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Down
TopologyBuck
Case16-VFQFN Exposed Pad
Output configurationPositive
Synchronous rectifierYes

Product details

3A synchronous buck — 2.9V to 6V input, adjustable output down to 0.6V

The TPS53311RGTT is a single-output step-down (buck) regulator from the SmoothPWM™ and Eco-Mode™ series, delivering 3A continuous output from a 2.9V to 6V input rail. Synchronous rectification (the low-side FET is on-chip, not an external diode) pushes efficiency above 90% across most of the load range.

Active production — no lifecycle risk

The device is RoHS3 compliant, so it clears EU and many Asia-Pacific regulatory gates without exemption paperwork.

Frequently asked questions

Where can I buy the TPS53311RGTT and get a quote?

No stock-holding claim — quoted per order.

What is the TPS53311RGTT's switching frequency and why does it matter?

The switching frequency is 1.1MHz. The 1.1MHz rate balances efficiency and component size for most point-of-load rails.

Is the TPS53311RGTT compatible with a 5V input rail?

Yes. The input voltage range is 2.9V to 6V, so a regulated 5V bus is within spec. The device can step down to any output between 0.6V and 5.04V from that rail.