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Texas Instruments TPS3838E18DBVTG4 — Power Management (PMIC / Gate Driver)

TPS3838E18DBVTG4 Simple Reset/Power-On Reset

MPNTPS3838E18DBVTG4
End of Life

Texas Instruments TPS3838E18DBVTG4, Simple Reset/Power-On Reset, Active Low, Open Drain, 1.71V Threshold, 10ms Minimum Reset Timeout, -40°C to 85°C, SOT-23-5, Tape & Reel.

Texas Instruments TPS3838E18DBVTG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS3838E18DBVTG4 specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - threshold1.71V
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

1.71V threshold supervisor in a SOT-23-5 package

The output is open-drain, so it can be wire-ORed with other reset sources or pulled up to a different rail voltage than the monitored supply. The 10ms minimum reset timeout holds the reset line low long enough for the downstream processor or FPGA to complete its internal initialization sequence before the reset is released.

This is a standard TI supervisor part number in the TPS3838 family, available through independent distribution channels.

The SOT-23-5 package (SC-74A, SOT-753 footprint) is a common small-outline transistor package with five leads, surface-mount only. The 0.95 mm pin pitch and 2.9 mm body length fit well on compact boards where a supervisor is placed near the monitored rail's decoupling capacitors.

Frequently asked questions

Can TPS3838E18DBVTG4 replace TPS3838E18DBVT?

The TPS3838E18DBVTG4 and TPS3838E18DBVT share the same base product number TPS3838 and the same 1.71V threshold. The suffix difference typically indicates packaging or tape-and-reel variation. They are functionally identical and pin-compatible, but verify the specific package code (SOT-23-5) matches your board footprint before substituting.

What is the reset timeout for TPS3838E18DBVTG4?

The reset timeout is 10ms minimum. This is the guaranteed minimum pulse width the reset output stays low after the monitored voltage rises above the threshold. The actual timeout may be longer; the datasheet should be consulted for the typical and maximum values.

Is TPS3838E18DBVTG4 active low or active high?

The reset output is active low. The output goes low when the monitored voltage falls below the 1.71V threshold and remains low for the 10ms minimum timeout after the voltage recovers.