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Texas Instruments TPS3828-33DBVT — Power Management (PMIC / Gate Driver)

TI TPS3828-33DBVT Simple Reset/Power-On Reset

MPNTPS3828-33DBVT
Last Buy

Texas Instruments TPS3828-33DBVT Simple Reset/Power-On Reset, Active Low, Open Drain Output, 2.93V Threshold, 120ms Min Reset Timeout, SOT-23-5 Package, -40°C to 85°C.

$1.7100Ref. price · indicative, final on quote
Texas Instruments TPS3828-33DBVT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS3828-33DBVT 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
OutputOpen Drain or Open Collector
PackageTape & Reel (TR) Cut Tape (CT)
Reset timeout120ms Minimum
CaseSC-74A, SOT-753

Product details

The active-low, open-drain output holds the reset for a minimum of 120 ms after the rail recovers, giving the downstream processor or FPGA time to initialize. This is a straightforward supervisor — no watchdog, no manual reset input — just the fundamental power-good handshake for a 3.3 V digital rail.

That means Texas Instruments has announced end-of-life; the final purchase window is open but closing. If this supervisor is already qualified on a board, now is the time to secure lifetime-buy quantities or qualify a drop-in replacement. For production continuity, the BOM should flag this line for a last-time-buy calculation.

Open-drain output and level translation

The open-drain output lets the reset pull-up resistor connect to a different voltage than the monitored 3.3 V rail.

Frequently asked questions

Is the TPS3828-33DBVT obsolete?

Yes, this part is in a Last Buy phase — Texas Instruments has discontinued it, and the final purchase window is active. It is not yet fully obsolete, but new designs should not use it. Existing BOM lines should plan for a last-time buy or a replacement.

What is the replacement for the TPS3828-33DBVT?

No official replacement is listed on the record. A pin-compatible alternative within the same TPS3828 family (same base number TPS3828) with a different voltage threshold or package variant may be available. Alternatively, a supervisor from another vendor with the same 2.93 V threshold, active-low open-drain output, and 120 ms timeout in SOT-23-5 can be qualified.

What is the reset timeout of the TPS3828-33DBVT?

The reset timeout is a minimum of 120 ms. After the supply voltage rises above the threshold, the reset output remains asserted for at least 120 ms before releasing the reset signal.