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

TPS3820-50DBVT – Texas Instruments Simple Reset/Power-On

MPNTPS3820-50DBVT
Active

Texas Instruments TPS3820-50DBVT, Simple Reset/Power-On Reset, Active Low, Push-Pull output, 4.55V threshold, SOT-23-5, -40°C to 85°C

$1.9000Ref. price · indicative, final on quote
Texas Instruments TPS3820-50DBVT datasheet (PDF)
PackagingSC-74A, SOT-753
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS3820-50DBVT 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); Cut Tape (CT)
Reset timeout15ms Minimum
CaseSC-74A, SOT-753

Product details

Voltage supervisor for a single 4.55V rail

The TPS3820-50DBVT is a Simple Reset/Power-On Reset IC from Texas Instruments, monitoring a single voltage rail with a 4.55V threshold. It asserts a reset output when the monitored supply drops below that threshold, then releases after a 15ms minimum timeout once the supply recovers. The push-pull, totem-pole output drives the reset line directly without an external pull-up resistor.

The part is ROHS3 compliant, and the base product number TPS3820 covers multiple threshold variants — the -50 suffix denotes the 4.55V trip point.

SOT-23-5 package – board footprint

Supplied in a SOT-753 package, also referred to as SOT-23-5. The 5-pin footprint is common for small supervisory ICs.

Frequently asked questions

What is the difference between TPS3820-50DBVT and TPS3820-33DBVT?

The only difference is the voltage threshold. TPS3820-50DBVT monitors a 4.55V rail; the -33 variant monitors a 3.3V rail. All other specs — reset type, output, timeout, package, temperature range — are identical across the TPS3820 family.

Does TPS3820-50DBVT have an open-drain output?

No. The output is push-pull, totem pole. It drives high and low actively, so no external pull-up resistor is required. If your design expects an open-drain reset output, consider the TLV803ED29DBZR, which uses an open-drain output stage.