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Texas Instruments TPS3839G18DQNT — Power Management (PMIC / Gate Driver)

TPS3839G18DQNT – Texas Instruments Simple Reset/Power-On

MPNTPS3839G18DQNT
Active

Texas Instruments TPS3839G18DQNT, Simple Reset/Power-On Reset, Active Low, Push-Pull Output, 1.67V Threshold, 120ms Minimum Reset Timeout, 4-X2SON (1x1) Package, -40°C to 85°C

$1.0100Ref. price · indicative, final on quote
Texas Instruments TPS3839G18DQNT datasheet (PDF)
Packaging4-XDFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS3839G18DQNT specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - threshold1.67V
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

1.67V threshold supervisor for 1.8V rails

The TPS3839G18DQNT is a Texas Instruments simple reset/power-on reset IC that monitors a single voltage rail with a 1.67V threshold. This threshold is tailored for 1.8V supply monitoring — the reset asserts when the rail drops below 1.67V, holding the system in reset for a minimum of 120ms after the supply recovers. The push-pull, totem-pole output drives the reset line directly without an external pull-up resistor, simplifying the BOM on a processor or FPGA reset input.

Industrial temperature and package footprint

Frequently asked questions

What is the reset timeout for TPS3839G18DQNT?

The reset timeout is 120ms minimum. After the supply rises above the threshold, the output remains low for at least 120ms to allow the system oscillator and power rails to stabilise before the processor starts executing code.

What package is TPS3839G18DQNT available in?

The TPS3839G18DQNT is supplied in a 4-X2SON package measuring 1x1 mm with an exposed pad. The supplier device package is 4-X2SON (1x1).

Can TPS3839G18DQNT be used for 1.8V systems?

Yes, the 1.67V threshold is designed for monitoring a 1.8V nominal supply. The reset asserts when the rail drops to 1.67V, providing a typical undervoltage window of about 130 mV below the nominal 1.8V.