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Texas Instruments TPS62046DRCR — Power Management (PMIC / Gate Driver)

TPS62046DRCR Buck Regulator 3.3V 1.2A Active - Texas

MPNTPS62046DRCR
Active

Texas Instruments TPS62046DRCR, step-down buck regulator, fixed 3.3 V output, 1.2 A continuous, 1.25 MHz switching, 10-VSON (3x3) package, -40°C to 85°C.

$2.3900Ref. price · indicative, final on quote
Texas Instruments TPS62046DRCR datasheet (PDF)
Packaging10-VFDFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS62046DRCR specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Voltage - input2.5V
Voltage - output (Min (Fixed))3.3V
Output current1.2A
Frequency - switching1.25MHz
I/O channels1
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Down
TopologyBuck
Case10-VFDFN Exposed Pad
Output configurationPositive
Synchronous rectifierYes

Product details

Fixed 3.3 V rail for 1.2 A loads

The TPS62046DRCR is a synchronous buck regulator delivering a fixed 3.3 V output at up to 1.2 A from a 2.5 V to 6 V input bus.

Input range and load margin check

The 2.5 V minimum input covers single-cell Li-ion (3.0-4.2 V) and two-cell alkaline (3.0 V fresh) with headroom; the 6 V maximum excludes any 12 V or 24 V industrial bus. The 1.2 A output is a hard ceiling — if your transient peak exceeds that, the LM53625LQURNLRQ1 (2.5 A) or LMR33630APCQRNXRQ1 (3.0 A) are pin-compatible alternatives in similar packages, though both carry automotive AEC-Q100 qualification and a wider temperature range.

The 10-VSON (3x3) package is a current, widely used footprint — no supply chain surprise.

Frequently asked questions

What are the closest functional alternatives to TPS62046DRCR?

For higher output current, the LM53625LQURNLRQ1 (2.5 A) and LMR33630APCQRNXRQ1 (3.0 A) are buck regulators with similar input voltage ranges and synchronous rectification, both AEC-Q100 qualified. They are not exact pin-to-pin matches — verify the package and pinout against your layout before substituting.

What input voltage range does TPS62046DRCR support?

The TPS62046DRCR operates from 2.5 V to 6 V input. That covers single-cell Li-ion, two-cell alkaline, and 5 V regulated rails, but not 12 V or higher buses.

Can TPS62046DRCR be used in battery-powered devices?

Yes. The 2.5 V minimum input works with a single Li-ion cell (3.0-4.2 V), and the 1.25 MHz switching frequency allows small external components that fit portable designs. The synchronous rectifier improves efficiency at light loads, extending battery run time.