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Texas Instruments TPS65257RHAT — Power Management (PMIC / Gate Driver)

TPS65257RHAT PMIC – Triple Buck Regulator, 3A/2A, Active

MPNTPS65257RHAT
Active

Texas Instruments TPS65257RHAT, triple-output synchronous buck regulator, 3A/2A per channel, adjustable output from 0.8V up to 16V, 40-VQFN package, active production.

$6.8200Ref. price · indicative, final on quote
Texas Instruments TPS65257RHAT datasheet (PDF)
Packaging40-VFQFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS65257RHAT specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Voltage - input4.5V
Voltage - output16V
Voltage - output (Min (Fixed))0.8V
Output current3A, 2A
Frequency - switching300kHz ~ 2.2MHz
I/O channels3
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Down
TopologyBuck
Case40-VFQFN Exposed Pad
Output configurationPositive
Synchronous rectifierYes

Product details

Triple-output PMIC for multi-rail systems

The TPS65257RHAT from Texas Instruments integrates three synchronous buck converters in a single 40-VQFN package, delivering 3 A on one output and 2 A on the other two. This consolidates the power tree for SoCs, FPGAs, and processors that need separate core, I/O, and memory rails. Each output is adjustable from 0.8 V up to the input voltage.

Switching frequency and thermal envelope

Switching frequency is programmable from 300 kHz to 2.2 MHz. Running at the high end shrinks the inductor and output capacitor footprint; dropping to 300 kHz improves efficiency at light load. The trade-off is set by a single resistor.

Active production — sourcing today

Frequently asked questions

What is the output voltage range of TPS65257RHAT?

Designers need to know adjustable range to ensure it meets their voltage requirements.

What is the operating temperature range of TPS65257RHAT?

Critical for reliability in extreme environments; buyers check for application compatibility.

Is TPS65257RHAT in stock?

Buyers need immediate availability to avoid production delays; stock status drives purchase decisions.

What is the price of TPS65257RHAT?

Cost is a key factor for sourcing; buyers compare prices across distributors.

Is there a direct replacement or equivalent for TPS65257RHAT?

When the part is not available, engineers and buyers need alternatives to keep projects on schedule.

Where can I buy TPS65257RHAT?

Quick access to authorized distributors is essential for procurement; transaction intent.