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Texas Instruments TPS3831K33DQNR — Power Management (PMIC / Gate Driver)

TI TPS3831K33DQNR Simple Reset IC, 2.93V Threshold

MPNTPS3831K33DQNR
Active

Texas Instruments TPS3831K33DQNR simple reset/power-on reset IC, active-low push-pull output, 2.93V threshold, 120ms minimum reset timeout, -40°C~85°C, 4-X2SON (1x1mm) package.

$1.0000Ref. price · indicative, final on quote
Texas Instruments TPS3831K33DQNR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS3831K33DQNR specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - threshold2.93V
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

2.93V threshold — the rail trip point

The TPS3831K33DQNR: When the supply drops below that level, the active-low push-pull output asserts reset and holds it for a minimum of 120ms after the rail recovers — enough time for most MCUs and DSPs to complete a clean power-on reset sequence.

The 2.93V threshold is a good fit for 3.3V rails that need a brown-out detector set around 2.9V to catch supply droop before the downstream logic enters an undefined state.

The base product number TPS3831 covers a family of threshold options.

Frequently asked questions

What is the reset timeout for TPS3831K33DQNR?

The reset timeout is a minimum of 120ms. After the supply rises above the 2.93V threshold, the output holds reset low for at least this duration before releasing.

What package does TPS3831K33DQNR come in?

It is supplied in a 4-X2SON (1x1 mm) package, also described as a 4-XDFN with exposed pad. It is a surface-mount package with a 1x1 mm body.