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Texas Instruments TPS62405QDRCRQ1 — Power Management (PMIC / Gate Driver)

TPS62405QDRCRQ1 Automotive Buck Regulator, Dual 400/600 mA

MPNTPS62405QDRCRQ1
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Texas Instruments TPS62405QDRCRQ1 automotive AEC-Q100 dual-output synchronous buck regulator, 2.5 V to 6 V input, 400 mA and 600 mA outputs, 2.2 MHz switching, 10-VSON (3x3) package.

$1.1325Ref. price · indicative, final on quote
Texas Instruments TPS62405QDRCRQ1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS62405QDRCRQ1 specifications
ParameterValue
SeriesAutomotive, AEC-Q100
Output typeProgrammable (Fixed)
MountingSurface Mount
Voltage - input2.5V
Voltage - output (Min (Fixed))1.215V, 1.925V (3.35V)
Output current400mA, 600mA
Frequency - switching2.2MHz
I/O channels2
Operating temperature-40°C~125°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Down
TopologyBuck
Case10-VFDFN Exposed Pad
Output configurationPositive
Synchronous rectifierYes

Product details

Dual 400 mA / 600 mA rails from one 3×3 mm package

Both outputs are independently programmable via external resistor dividers, or fixed-voltage options are available — the listed fixed outputs are 1.215 V and 1.925 V (3.35 V).

What the AEC-Q100 grade and 125 °C junction buy the design

This part carries AEC-Q100 qualification — it is not a commercial part dressed up as automotive-capable. The synchronous rectifier improves efficiency at high switching frequency, keeping the thermal budget manageable in a sealed ECU. For a PPAP submission, the OEM auditor will ask for the AEC-Q grade documentation — this part has it, and it covers the full temperature range.

That means it is available for new design-ins and volume production without a forced redesign window.

Frequently asked questions

Is TPS62405QDRCRQ1 automotive qualified?

Yes, it is listed under the Automotive, AEC-Q100 series.

What is the difference between TPS62405 and TPS62400?

Both are dual-output synchronous buck converters in the same family. The TPS62405 has fixed output voltage options of 1.215 V and 1.925 V (3.35 V), while the TPS62400 has different fixed output voltages. The parametric table in the datasheet shows the full matrix of fixed-voltage variants. For a pin-compatible alternative within the family, check the TPS62400 series against your required output rails.