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Texas Instruments TPS63031DSKR — DC-DC Power Modules

TPS63031DSKR Buck-Boost Converter, 2.4 MHz, 900 mA Switch

MPNTPS63031DSKR
Active

Texas Instruments TPS63031DSKR, Step-Up/Step-Down Buck-Boost Converter, Fixed 3.3 V Output, 900 mA Switch, 2.4 MHz, 10-WFDFN Exposed Pad, -40°C to 85°C.

$2.2700Ref. price · indicative, final on quote
Texas Instruments TPS63031DSKR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS63031DSKR specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Voltage - input5.5V
Voltage - output (Min (Fixed))3.3V
Output current900mA (Switch)
Frequency - switching2.4MHz
I/O channels1
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Up/Step-Down
TopologyBuck-Boost
Case10-WFDFN Exposed Pad
Output configurationPositive
Synchronous rectifierYes

Product details

Active production — a current-design buck-boost for the 3.3 V rail

The TPS63031DSKR: The 900 mA switch current rating and 2.4 MHz switching frequency target portable, battery-powered applications where board area and efficiency across the battery discharge curve matter more than raw output current.

2.4 MHz switching — inductor size and ripple trade-off

The 2.4 MHz switching frequency lets the designer use a small inductor (typically 2.2 µH to 4.7 µH) and small ceramic capacitors, shrinking the total solution footprint — the 10-SON 2.5x2.5 mm package plus a few passives fits a cramped board edge. At this switching speed, the converter operates above the audible band, so there is no transformer whine in audio or sensor applications.

10-SON exposed pad — thermal and layout checklist

Frequently asked questions

What is the efficiency of TPS63031DSKR at 3.3 V output?

The efficiency depends on input voltage and load current. At a typical 3.7 V lithium-ion input and moderate load, the buck-boost topology maintains regulation through the battery discharge curve — the datasheet efficiency curves (not reproduced here) show peak efficiency above 90% in the mid-load range for 3.3 V output.