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Texas Instruments TPS65321QPWPRQ1 — Power Management (PMIC / Gate Driver)

TPS65321QPWPRQ1 Automotive PMIC, Buck + LDO, NRND

MPNTPS65321QPWPRQ1
NRND

Texas Instruments Automotive, AEC-Q100, Eco-Mode™ TPS65321QPWPRQ1, dual-output PMIC: step-down buck (1.1V–20V, 3.2A) and linear LDO (1.1V–5.5V, 280mA), 3V–36V supply, 100kHz–2.5MHz switching, -40°C–125°C, 14-HTSSOP.

$3.1000Ref. price · indicative, final on quote
Texas Instruments TPS65321QPWPRQ1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS65321QPWPRQ1 specifications
ParameterValue
SeriesAutomotive, AEC-Q100, Eco-Mode™
MountingSurface Mount
Supply voltage3V ~ 36V
Voltage/Current - output 11.1V ~ 20V, 3.2A
Voltage/Current - output 21.1V ~ 5.5V, 280mA
Frequency - switching100kHz ~ 2.5MHz
I/O channels2
Operating temperature-40°C~125°C
PackageTape & Reel (TR); Cut Tape (CT)
TopologyStep-Down (Buck) (1), Linear (LDO) (1)
W (Sequencer)No
W (LED driver)No
W (Supervisor)Yes
Case14-TSSOP (0.173\", 4.40mm Width) Exposed Pad

Product details

NRND — plan your last-time-buy now

What the dual-output PMIC brings to the board

The TPS65321QPWPRQ1 packs a 3.2A step-down buck converter and a 280mA linear LDO into a single 14-HTSSOP package with an exposed thermal pad. The buck output adjusts from 1.1V to 20V; the LDO covers 1.1V to 5.5V. Input supply range is 3V to 36V, and the switching frequency is programmable from 100kHz to 2.5MHz — useful for synchronising with the system clock or avoiding sensitive frequency bands.

Automotive-grade and temperature range

The supervisor output (w/Supervisor = Yes) adds a reset or power-good signal, which simplifies sequencing in an ECU or motor-drive controller.

Frequently asked questions

What compliance documentation does TI provide for TPS65321QPWPRQ1?

The evidence does not list specific compliance certificates (RoHS, REACH, UL, IEC). The part is AEC-Q100 qualified, which implies automotive-grade process controls. Request the full compliance declaration from your sourcing contact when you place the RFQ.