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Texas Instruments TPS3838J25DBVRG4 — Power Management (PMIC / Gate Driver)

TPS3838J25DBVRG4 Simple Reset/Power-On Reset

MPNTPS3838J25DBVRG4
End of Life

Texas Instruments TPS3838J25DBVRG4, Simple Reset/Power-On Reset, Active Low, Open Drain, 2.25V Threshold, 10ms Timeout, -40°C~85°C, Surface Mount, SOT-23-5.

Texas Instruments TPS3838J25DBVRG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS3838J25DBVRG4 specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - threshold2.25V
Number of voltages monitored1
Operating temperature-40°C~85°C(TA)
ResetActive Low
OutputOpen Drain or Open Collector
PackageTape & Reel (TR)
Reset timeout10ms Minimum
CaseSC-74A, SOT-753

Product details

2.25 V threshold — the brownout line for a 2.5 V rail

The TPS3838J25DBVRG4: This threshold is sized for a 2.5 V supply rail — the 250 mV guard band catches brownout conditions before the downstream logic enters an undefined state. The reset output is active-low, open-drain, so it can be wire-ORed with other reset sources on the board.

10 ms timeout — why it matters for processor boot

A shorter timeout risks the CPU starting before the oscillator or PLL has locked; a longer one delays system readiness. The 10 ms floor is a common middle ground for MCUs and simple SoCs.

The SOT-23-5 package is a compact 5-pin footprint that fits on tight mixed-signal boards.

Frequently asked questions

What is the reset timeout of TPS3838J25DBVRG4?

The reset timeout is a minimum of 10 ms. The output holds the reset signal low for at least this duration after the supply rises above the threshold.

What is the output type of TPS3838J25DBVRG4?

The output is open-drain, active-low. It requires an external pull-up resistor to the logic supply rail.