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Texas Instruments TPS3801J25DCKR — Power Management (PMIC / Gate Driver)

TPS3801J25DCKR – TI Simple Reset/Power-On Reset, Active Low

MPNTPS3801J25DCKR
Active

Texas Instruments TPS3801J25DCKR, Simple Reset/Power-On Reset, 1-channel, Active Low, Push-Pull output, 2.25V threshold, 120ms min reset timeout, SC-70-5, -40°C to 85°C

$1.4900Ref. price · indicative, final on quote
Texas Instruments TPS3801J25DCKR datasheet (PDF)
Packaging5-TSSOP, SC-70-5, SOT-353
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS3801J25DCKR 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
OutputPush-Pull, Totem Pole
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout120ms Minimum
Case5-TSSOP, SC-70-5, SOT-353

Product details

What this supervisor does and who specifies it

The TPS3801J25DCKR is a single-channel voltage supervisor from Texas Instruments that monitors a 2.25V threshold rail and asserts a reset signal when the supply drops below that level. It is a Simple Reset/Power-On Reset type with an Active Low, Push-Pull output — meaning the reset pin goes low when the monitored voltage falls below threshold and stays low for at least 120ms after the supply recovers. This part is typically specified by hardware engineers designing processor, FPGA, or ASIC power sequencing where a clean, timed reset pulse is needed to guarantee the logic starts from a known state.

The 2.25V threshold is set to monitor a 2.5V or 3.3V rail — if that rail droops below 2.25V, the supervisor pulls the reset output low.

Housed in a 5-lead SC-70-5 (SOT-353) package, the footprint is about 2.0mm x 2.1mm — small enough to fit under a mezzanine connector or alongside a BGA without crowding the decoupling caps.

Frequently asked questions

What is the reset timeout of TPS3801J25DCKR?

The reset timeout is 120ms minimum. After the monitored voltage rises above the threshold, the reset output stays low for at least 120ms before releasing high.

Is TPS3801J25DCKR RoHS compliant?

Yes, it is ROHS3 compliant, meaning it meets the EU RoHS directive without any exempted substances.

Can TPS3801J25DCKR be used as a replacement for TPS3801J25?

The TPS3801J25DCKR is the surface-mount SC-70-5 version of the TPS3801J25 base part. If the original TPS3801J25 was in a different package (e.g., SOT-23), the SC-70-5 footprint is smaller and the pinout may differ — verify the PCB footprint and pin mapping before substituting.

What is the difference between TPS3801J25DCKR and TPS3801J25DBVR?

The suffix DBVR indicates a SOT-23-5 package, while DCKR indicates SC-70-5. Both are 5-lead surface-mount packages, but the SC-70-5 is smaller (approx 2.0mm x 2.1mm vs SOT-23-5 at 2.9mm x 2.8mm). The electrical specifications — threshold, timeout, output type — are the same.