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Texas Instruments TPS3840PL40DBVR — Power Management (PMIC / Gate Driver)

TPS3840PL40DBVR Simple Reset/Power-On Reset, 4 V Threshold

MPNTPS3840PL40DBVR
Active

Texas Instruments TPS3840PL40DBVR Simple Reset/Power-On Reset, Active Low, Push-Pull Output, 4 V Threshold, 619 ms Timeout, SOT-23-5, -40°C to 125°C.

$0.8700Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS3840PL40DBVR specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - threshold4V
Number of voltages monitored1
Operating temperature-40°C ~ 125°C (TJ)
ResetActive Low
OutputPush-Pull, Totem Pole
PackageTape & Reel (TR) Cut Tape (CT)
Reset timeout619ms Typical
CaseSC-74A, SOT-753

Product details

Reset supervisor with a 4 V threshold and a 619 ms timeout

The output is active-low push-pull, so it drives the reset line high when the supply is good and pulls it low on a fault — no external pull-up resistor needed.

Housed in a SOT-23-5 package (SC-74A, SOT-753), the TPS3840PL40DBVR takes up minimal board area and is a surface-mount fit for dense layouts.

Frequently asked questions

Does TPS3840PL40DBVR have an active-low push-pull output?

Yes, the reset output is active-low push-pull (totem pole). It drives the reset line low when the monitored voltage falls below the threshold and releases it high without requiring an external pull-up.

Is TPS3840PL40DBVR obsolete or still active?

No discontinuation or last-time-buy has been announced.