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Texas Instruments TPS62870Y3QWRXSRQ1 — Power Management (PMIC / Gate Driver)

TPS62870Y3QWRXSRQ1 6A Buck Converter – AEC-Q100

MPNTPS62870Y3QWRXSRQ1
Active

Texas Instruments Automotive, AEC-Q100 series, TPS62870Y3QWRXSRQ1 – 6A synchronous step-down (buck) converter, programmable output from 0.4V to 3.35V, input range 2.7V to 6V, -40°C to 125°C, 16-TFQFN Exposed Pad (2.55x3.55 mm).

$4.0100Ref. price · indicative, final on quote
Texas Instruments TPS62870Y3QWRXSRQ1 datasheet (PDF)
Packaging16-TFQFN Exposed Pad
RoHSROHS3 Compliant
SeriesAutomotive, AEC-Q100
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS62870Y3QWRXSRQ1 specifications
ParameterValue
SeriesAutomotive, AEC-Q100
Output typeProgrammable
MountingSurface Mount, Wettable Flank
Voltage - input2.7V
Voltage - output3.35V
Voltage - output (Min (Fixed))0.4V
Output current6A
Frequency - switching1.5MHz, 2.25MHz, 2.5MHz, 3MHz
I/O channels1
Operating temperature-40°C ~ 125°C (TA)
PackageTape & Reel (TR) Cut Tape (CT)
FunctionStep-Down
TopologyBuck
Case16-TFQFN Exposed Pad
Output configurationPositive
Synchronous rectifierYes

Product details

What this 6A automotive buck converter covers

The TPS62870Y3QWRXSRQ1 is a synchronous step-down regulator from Texas Instruments, rated for 6A continuous output with a programmable output voltage from 0.4V to 3.35V. Its input range of 2.7V to 6V makes it a fit for 3.3V and 5V automotive rails, including pre-regulated supplies from battery or intermediate buses. The AEC-Q100 qualification confirms it for production-grade automotive applications.

Switching frequency flexibility and inductor sizing

Four selectable switching frequencies — 1.5 MHz, 2.25 MHz, 2.5 MHz, and 3 MHz — let the designer trade off inductor size against efficiency. At 3 MHz the inductor can drop below 1 µH, shrinking the total solution footprint, while 1.5 MHz improves light-load efficiency in always-on modules. The 16-VQFN (2.55x3.55 mm) package with wettable flanks supports automated optical inspection (AOI) in high-volume assembly.

It is ROHS3 compliant.

Frequently asked questions

Is TPS62870Y3QWRXSRQ1 compatible with a 5V input?

Yes, the input voltage range is 2.7V to 6V, so a 5V rail is well within the operating window with margin.

How does TPS62870Y3QWRXSRQ1 compare to LMR33630APCQRNXRQ1?

Both are AEC-Q100 automotive synchronous buck converters. The TPS62870Y3QWRXSRQ1 delivers 6A output versus 3A for the LMR33630APCQRNXRQ1, and its input range extends down to 2.7V versus 3.8V min for the LMR33630. The TPS62870 also offers a wider programmable output range (0.4V to 3.35V vs adjustable on the LMR33630).