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Texas Instruments TPS628110AQWRWYRQ1 — DC-DC Power Modules

TPS628110AQWRWYRQ1 Automotive Buck Converter, 1A, AEC-Q100

MPNTPS628110AQWRWYRQ1
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Texas Instruments TPS628110AQWRWYRQ1 automotive-grade step-down buck converter, 1A output, 2.75V to 6V input, adjustable output from 0.6V to 5.5V, 1.8MHz to 4MHz switching frequency, -40°C to 125°C, 9-VFQFN-HR (3x2) package with wettable flank.

$2.1200Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS628110AQWRWYRQ1 specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount, Wettable Flank
Voltage - input2.75V
Voltage - output5.5V
Voltage - output (Min (Fixed))0.6V
Output current1A
Frequency - switching1.8MHz ~ 4MHz
I/O channels1
Operating temperature-40°C ~ 125°C (TA)
GradeAutomotive
PackageTape & Reel (TR) Cut Tape (CT)
FunctionStep-Down
TopologyBuck
QualificationAEC-Q100
Case9-VFQFN
Output configurationPositive
Synchronous rectifierYes

Product details

125°C junction — no derating guesswork

The 1A output is continuous across that range, not a room-temperature peak.

1.8–4 MHz switching — trade efficiency for inductor size

Run it at the low end for best efficiency in a thermally constrained module; push it to 4 MHz to shrink the inductor footprint to a 2x2.5 mm or smaller package.

Wettable flank QFN — AOI-friendly

The 9-VFQFN-HR (3x2 mm) package includes wettable flanks on the side pads, so an automated optical inspection system can verify solder joint wetting after reflow. That is a production-line requirement for most automotive Tier-1s — without it, the assembler needs X-ray or a manual inspection step.

No last-time-buy notice, no end-of-life announcement.

Frequently asked questions

What is the difference between TPS628110 and TPS628110AQWRWYRQ1?

The TPS628110AQWRWYRQ1 is the AEC-Q100 automotive-qualified version of the base TPS628110. The base TPS628110 is a commercial/industrial grade part without AEC-Q100 certification. Pin-compatible and functionally identical, but only the AQ variant is approved for automotive BOMs.

Can TPS628110AQWRWYRQ1 be used in 5V to 3.3V conversion?

Yes. The input range is 2.75V to 6V, so a 5V rail is well within spec. The output is adjustable from 0.6V to 5.5V via an external resistor divider. Setting it to 3.3V is a standard configuration. The 1A output current is sufficient for most MCU, sensor, and transceiver loads in automotive modules.