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STMicroelectronics A6986ITR — DC-DC Power Modules

A6986ITR – STMicro AEC-Q100 Buck Regulator, 4V-38V

MPNA6986ITR
End of Life

STMicroelectronics A6986ITR, Automotive AEC-Q100 series, step-down (buck) switching regulator, single adjustable output, 4V to 38V input range, synchronous rectifier, 16-PowerTSSOP package, -40°C to 135°C junction temperature.

$4.88Ref. price · indicative, final on quote
Packaging16-PowerTSSOP (0.173", 4.40mm Width)
RoHSROHS3 Compliant
SeriesAutomotive, AEC-Q100
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

A6986ITR specifications
ParameterValue
SeriesAutomotive, AEC-Q100
Output typeAdjustable
MountingSurface Mount
Voltage - input38V
Voltage - output38V
Voltage - output (Min (Fixed))0.85V
Frequency275kHz ~ 2.2MHz
I/O channels1
Operating temperature-40°C ~ 135°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Down
TopologyBuck
Case16-PowerTSSOP (0.173\", 4.40mm Width)
Output configurationPositive
Synchronous rectifierYes

Product details

4V to 38V input, adjustable output down to 0.85V

The A6986ITR is an automotive AEC-Q100 qualified step-down regulator accepting an unregulated input from 4V up to 38V, making it suitable for 12V and 24V vehicle electrical systems as well as industrial bus supplies. The adjustable output can be set as low as 0.85V, which covers the core voltages of modern MCUs and FPGAs.

Switching frequency 275 kHz to 2.2 MHz

At the high end, the regulator can use smaller inductors and capacitors, shrinking the PCB footprint; at the low end, switching losses drop and efficiency improves, which matters when the thermal budget is tight under the hood.

Active production, AEC-Q100 qualified

Single-output, positive-configuration buck

This is a single-output, positive-configuration step-down regulator. The internal compensation network is optimised for a range of output capacitors, so the loop stability check during design-in should cover the full load and temperature range.

Frequently asked questions

Is the A6986ITR AEC-Q100 qualified?

Yes, the A6986ITR is part of the Automotive, AEC-Q100 series from STMicroelectronics. The qualification covers the stress tests required for automotive-grade components, including extended temperature range and high-reliability operation.

Is the A6986ITR obsolete or end-of-life?

It is suitable for new designs and long-term production.