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Texas Instruments TPS3839G12DQNT — Power Management (PMIC / Gate Driver)

TPS3839G12DQNT – TI Simple Reset Supervisor, 1.1V Threshold

MPNTPS3839G12DQNT
Active

Texas Instruments TPS3839G12DQNT, Simple Reset/Power-On Reset, 1.1V threshold, 120 ms minimum reset timeout, active low push-pull output, -40°C to 85°C, 4-X2SON (1x1 mm) package.

$1.0200Ref. price · indicative, final on quote
Texas Instruments TPS3839G12DQNT datasheet (PDF)
Packaging4-XDFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS3839G12DQNT specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - threshold1.1V
Number of voltages monitored1
Operating temperature-40°C~85°C(TA)
ResetActive Low
OutputPush-Pull, Totem Pole
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout120ms Minimum
Case4-XDFN Exposed Pad

Product details

1.1V threshold supervisor for low-voltage cores

The TPS3839G12DQNT is a single-channel voltage supervisor from TI's TPS3839 family, monitoring a 1.1V rail with an active-low, push-pull reset output. It asserts reset when the supply drops below 1.1V and holds it low for a minimum of 120 ms after the rail recovers, giving the downstream processor time to stabilize.

120 ms reset timeout and industrial temperature range

The 120 ms minimum reset timeout is long enough to cover most power-supply ramp-up sequences for MCUs and SoCs, but short enough to avoid delaying system start-up.

The 4-X2SON package is moisture-sensitive — store the reels dry per MSL guidelines.

Frequently asked questions

What is the reset timeout of TPS3839G12DQNT?

The reset timeout is 120 ms minimum. After the monitored rail rises above 1.1V, the reset output stays low for at least 120 ms before releasing.

Is TPS3839G12DQNT active low reset?

Yes, the reset output is active low. The output is push-pull, totem pole, so it drives the reset line low without needing an external pull-up.

What is the closest functional second-source for TPS3839G12DQNT?

Within the same TPS3839 family, the TPS3839E16DQNT is a close parametric match — same reset type, output, timeout, and package, but with a different threshold voltage. Confirm the threshold matches your rail before substituting.