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Texas Instruments TPS62111RSARG4 — Power Management (PMIC / Gate Driver)

TPS62111RSARG4 3.3V Step-Down Buck Converter, 1.5A, 1MHz

MPNTPS62111RSARG4
End of Life

Texas Instruments TPS62111RSARG4, Step-Down Buck Converter, Fixed 3.3V Output, 1.5A, 1MHz Switching, Synchronous Rectifier, 16-QFN Exposed Pad (4x4 mm), -40°C to 125°C TJ.

$2.9300Ref. price · indicative, final on quote
Texas Instruments TPS62111RSARG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS62111RSARG4 specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Voltage - input3.1V
Voltage - output (Min (Fixed))3.3V
Output current1.5A
Frequency - switching1MHz
I/O channels1
Operating temperature-40°C~125°C(TJ)
PackageTape & Reel (TR)
FunctionStep-Down
TopologyBuck
Case16-VQFN Exposed Pad
Output configurationPositive
Synchronous rectifierYes

Product details

Fixed 3.3 V rail for moderate-load designs

The TPS62111RSARG4 is a synchronous step-down (buck) converter from Texas Instruments, delivering a fixed 3.3 V output at up to 1.5 A from an input range of 3.1 V to 17 V.

1.5 A output and thermal derating

Rated 1.5 A continuous output, this part covers moderate loads like sensor arrays, MCU core rails, or auxiliary supplies. For a 12 V input to 3.3 V output at 1.5 A, the power dissipation is roughly 1.3 W — budget a 1-inch-square copper pour on the bottom layer with thermal vias to keep the junction below 125°C.

Frequently asked questions

Where can I buy TPS62111RSARG4?

The TPS62111RSARG4 is available to order through independent distribution.

What is the closest pin-compatible alternative to TPS62111RSARG4?

A parametric search for a synchronous buck in a 16-QFN (4x4 mm) package with a fixed 3.3 V output at 1.5 A would identify candidates, but no direct cross-reference is confirmed.