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Texas Instruments TPS3838L30DBVT — Power Management (PMIC / Gate Driver)

TPS3838L30DBVT Texas Instruments Supervisor IC SOT-23-5

MPNTPS3838L30DBVT
Active

Texas Instruments TPS3838L30DBVT, Simple Reset/Power-On Reset IC, 1-channel supervisor, active-low open-drain output, 2.64 V threshold, 10 ms minimum reset timeout, SOT-23-5 package, -40°C to 85°C operating range.

$3.6600Ref. price · indicative, final on quote
Texas Instruments TPS3838L30DBVT datasheet (PDF)
PackagingSC-74A, SOT-753
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS3838L30DBVT specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - threshold2.64V
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 timeout10ms Minimum
CaseSC-74A, SOT-753

Product details

Supervisor IC for 3.3 V rail monitoring

The TPS3838L30DBVT is a Texas Instruments Simple Reset/Power-On Reset IC that monitors a single voltage rail and asserts an active-low reset signal when the supply drops below 2.64 V. The open-drain output stays low for a minimum of 10 ms after the rail recovers, giving the downstream processor time to stabilize before code execution begins. It is commonly used in battery-powered equipment, industrial controllers, and embedded systems where a clean power-on reset is critical.

The 2.64 V threshold is set for a nominal 3.3 V supply — it triggers reset before the rail falls below the minimum operating voltage of most 3.3 V logic. If your processor requires a different trip point, the TLV803 family offers 2.93 V and 4.38 V options, though with longer timeout values. The 10 ms minimum reset timeout is on the shorter side among simple supervisors. Compare with the TLV803EA29VDBZR at 130 ms minimum or the TLV803ED29DBZR at 33 ms minimum if your system needs a longer hold time for a slow-starting power supply or a complex SoC boot sequence.

The SOT-23-5 footprint is widely used and easy to hand-assemble or reflow.

Frequently asked questions

Does the TPS3838L30DBVT have an open-drain output?

Yes, the output is Open Drain or Open Collector. This allows the reset signal to be pulled up to a different voltage than the monitored rail, which is useful when the supervisor and the processor run on separate supplies.

What is the closest functional second-source for the TPS3838L30DBVT?

The TLV803EA29VDBZR and TLV803ED29DBZR are similar Simple Reset/Power-On Reset ICs with active-low open-drain outputs, but they have different reset thresholds (2.93 V) and longer timeouts (130 ms and 33 ms minimum, respectively). Verify the threshold and timeout match your system before substituting.