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Texas Instruments TPS3840PL20DBVR — Power Management (PMIC / Gate Driver)

TPS3840PL20DBVR – TI Power Supply Monitor, 2V Threshold

MPNTPS3840PL20DBVR
Active

Texas Instruments TPS3840PL20DBVR, Power Supply Monitor, 1 channel, 2V threshold, active-low reset, push-pull output, SOT-23-5 package, -40°C to 125°C junction temperature.

$1.0600Ref. price · indicative, final on quote
Texas Instruments TPS3840PL20DBVR datasheet (PDF)
PackagingSC-74A, SOT-753
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS3840PL20DBVR specifications
ParameterValue
TypePower Supply Monitor
MountingSurface Mount
Voltage - threshold2V
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

2V Threshold Supervisor in SOT-23-5

The TPS3840PL20DBVR is a single-channel power supply monitor from Texas Instruments that asserts a reset output when the monitored voltage drops below 2V. The reset output is active-low and push-pull, so it drives the reset line high or low without an external pull-up resistor. A typical reset timeout of 619ms holds the system in reset long enough for the supply to settle after it rises above the threshold. The device monitors one voltage rail and comes in a surface-mount SOT-23-5 package.

Frequently asked questions

What is the closest functional second-source for TPS3840PL20DBVR?

The TLV803EA29VDBZR is a similar 2V supervisor from Texas Instruments, but its output is open-drain, not push-pull. The TPS3840PL20DBVR drives the reset line directly without an external pull-up; the TLV803 needs one. Verify the output type matches your reset input before substituting.