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TPS54331DG4

TPS54331DG4 Buck Converter, 3A, 570 kHz, Active

MPNTPS54331DG4
End of Life

Texas Instruments Eco-Mode™ TPS54331DG4, step-down buck regulator, 3A output, 570 kHz switching, adjustable output, 8-SOIC package, -40°C to 150°C junction temperature.

$1.3095Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS54331DG4 specifications
ParameterValue
SeriesEco-Mode™
Output typeAdjustable
MountingSurface Mount
Voltage - input3.5V
Voltage - output25V
Voltage - output (Min (Fixed))0.8V
Output current3A
Frequency570kHz
I/O channels1
Operating temperature-40°C~150°C(TJ)
PackageTube
FunctionStep-Down
TopologyBuck
Case8-SOIC (0.154\", 3.90mm Width)
Output configurationPositive
Synchronous rectifierNo

Product details

3 A output — sizing the rail for your load

The adjustable output from 0.8 V to 25 V gives flexibility across multiple output voltages from a single BOM line.

570 kHz switching — inductor and capacitor selection

The fixed 570 kHz switching frequency sits in a practical middle ground: it keeps inductor values in the 10 µH to 47 µH range, avoiding the larger magnetics of a 100 kHz design while staying below the higher switching losses of a 1 MHz part. The non-synchronous rectifier means an external Schottky diode handles the low-side path — factor that into the BOM and board area.

Temperature range — industrial and under-hood capable

The 8-SOIC package with a copper pad on the PCB helps pull heat away from the die.

Frequently asked questions

Does TPS54331DG4 have a synchronous rectifier?

No, the TPS54331DG4 uses a non-synchronous rectifier topology, so an external Schottky diode is required on the output side.