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Texas Instruments TPS3839G25DBZT — Power Management (PMIC / Gate Driver)

TI TPS3839G25DBZT Simple Reset/Power-On Reset

MPNTPS3839G25DBZT
Active

Texas Instruments TPS3839G25DBZT, Simple Reset/Power-On Reset, Active Low, Push-Pull Output, 2.325 V Threshold, 120 ms Minimum Reset Timeout, SOT-23-3, -40 to 85 °C.

$0.9600Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS3839G25DBZT specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - threshold2.325V
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
CaseTO-236-3, SC-59, SOT-23-3

Product details

2.325 V threshold — why that number matters for your rail

That threshold is not a standard 2.5 V or 2.0 V — it sits right at the edge of a 2.5 V rail's tolerance band, catching a brown-out before the downstream logic starts behaving unpredictably. The reset output is active-low, push-pull, totem-pole, so it drives the reset line directly without needing an external pull-up.

120 ms reset timeout — enough for the supply to settle

That is long enough for most switching supplies and linear regulators to come up cleanly after a power-on or a brown-out event, but short enough that the system does not sit idle waiting for the reset to de-assert.

SOT-23-3 package — can I swap it on site?

No hot-air station required, no paste stencil. If you have a steady hand and a decent pair of tweezers, you can swap this on a customer site without a lab bench. The three pins are clearly spaced — orientation is obvious from the pin 1 marker on the top of the package.

Temperature range — industrial, not automotive

That covers factory-floor automation, outdoor telecom cabinets, and most industrial control panels. It does not cover under-hood automotive or downhole drilling — those need the -40 to 125°C extended range parts. If your BOM calls for AEC-Q100, this is not the one.

Lifecycle and sourcing — still in active production

No last-time-buy notice, no end-of-life warning.

Frequently asked questions

What is the reset timeout of TPS3839G25DBZT?

The reset timeout is a minimum of 120 ms. That is the time the part holds the reset output low after the supply voltage rises above the 2.325 V threshold.