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Texas Instruments TPS3820-50DBVRG4 — Power Management (PMIC / Gate Driver)

TPS3820-50DBVRG4 Simple Reset/Power-On Reset IC

MPNTPS3820-50DBVRG4
End of Life

Texas Instruments TPS3820-50DBVRG4, Simple Reset/Power-On Reset IC, Active Low, Push-Pull Output, 4.55V Threshold, 15ms Minimum Reset Timeout, SOT-23-5, -40°C to 85°C.

Texas Instruments TPS3820-50DBVRG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS3820-50DBVRG4 specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - threshold4.55V
Number of voltages monitored1
Operating temperature-40°C~85°C(TA)
ResetActive Low
OutputPush-Pull, Totem Pole
PackageTape & Reel (TR)
Reset timeout15ms Minimum
CaseSC-74A, SOT-753

Product details

5 V rail watchdog with a 4.55 V trip point

The TPS3820-50DBVRG4: Its 4.55 V threshold triggers a reset when the supply drops below nominal, giving the downstream processor a clean power-up sequence and brownout protection. The reset output is active-low with a push-pull, totem-pole stage, so no external pull-up resistor is needed on the reset line to the processor.

SOT-23-5 footprint and industrial temperature range

Packaged in a SOT-23-5, the TPS3820-50DBVRG4 fits into tight board layouts where a supervisor is needed without consuming much real estate.

Frequently asked questions

Does TPS3820-50DBVRG4 have a push-pull output or open-drain?

It has a push-pull, totem-pole output.