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Texas Instruments TPS3839G33DQNR — Power Management (PMIC / Gate Driver)

TPS3839G33DQNR – TI Simple Reset/Power-On Reset

MPNTPS3839G33DQNR
Active

Texas Instruments TPS3839G33DQNR Simple Reset/Power-On Reset IC, 1 channel, active-low push-pull output, 3.08V threshold, 120ms min reset timeout, -40°C to 85°C, 4-X2SON (1x1 mm) package.

$1.0200Ref. price · indicative, final on quote
Texas Instruments TPS3839G33DQNR datasheet (PDF)
Packaging4-XDFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS3839G33DQNR specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - threshold3.08V
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

What this supervisor does for your 3.3V rail

It monitors a 3.3V supply rail and asserts a reset signal when the voltage drops below 3.08V. The output is push-pull, active-low, so it can drive the reset input of an MCU or FPGA without an external pull-up resistor.

Threshold, timeout, and temperature boundaries

The 3.08V threshold is set for a nominal 3.3V rail — it trips before the supply falls below the minimum operating voltage of typical 3.3V logic.

Package and PCB layout consideration

The device comes in a 4-X2SON package measuring 1x1 mm. The 4-pin footprint is straightforward to hand-solder with a fine-tip iron, but the pad pitch is tight; a stencil is recommended for reflow assembly.

The part is ROHS3 compliant.

Frequently asked questions

What is the closest functional equivalent to the TPS3839G33DQNR?

The TLV803EA29VDBZR is a functional peer: it is also a simple reset/power-on reset IC with active-low output, but uses an open-drain output (requires a pull-up resistor) and has a 2.93V threshold with a 130 ms minimum timeout. The TPS3839G33DQNR's push-pull output eliminates the external pull-up, and its 3.08V threshold is a closer match for a 3.3V rail.