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Texas Instruments TPS3840PL27DBVR — Power Management (PMIC / Gate Driver)

TPS3840PL27DBVR – TI Power Supply Monitor, 2.7V Threshold

MPNTPS3840PL27DBVR
Active

Texas Instruments TPS3840PL27DBVR, Power Supply Monitor, 2.7V threshold, Active Low reset, Push-Pull output, 619ms typical reset timeout, SOT-23-5, -40°C to 125°C junction

$1.0100Ref. price · indicative, final on quote
Texas Instruments TPS3840PL27DBVR datasheet (PDF)
PackagingSC-74A, SOT-753
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS3840PL27DBVR specifications
ParameterValue
TypePower Supply Monitor
MountingSurface Mount
Voltage - threshold2.7V
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

2.7V threshold supervisor with 619ms reset timeout

The TPS3840PL27DBVR is a single-channel power supply monitor from Texas Instruments that asserts a reset signal when the monitored rail drops below 2.7V. The reset output stays low for 619ms typical after the supply recovers — long enough to let a downstream MCU or SoC complete its power-on reset sequence before the core starts executing code. The push-pull output drives the reset line directly without an external pull-up resistor, saving one component per rail. The output is active low, compatible with most reset input logic.

No single-source risk — the part is widely stocked across the distribution network.

Frequently asked questions

How can I order TPS3840PL27DBVR or check stock?

Submit an RFQ with your target quantity. The part is active (Texas Instruments, ROHS3 compliant, SOT-23-5 package) and available through our sourcing network. Current pricing and lead time are confirmed at quote time — no stock-holding claim, sourced per order.

What is the reset timeout for TPS3840PL27DBVR?

619ms typical. This is the delay from when the supply crosses the 2.7V threshold to when the reset output de-asserts (goes high). The timeout is fixed internally — no external capacitor needed.

Is TPS3840PL27DBVR push-pull or open drain?

Push-pull (totem pole) output. It drives the reset line high and low without an external pull-up resistor. This is a direct BOM simplification over open-drain alternatives like the TLV803 series.