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Texas Instruments TPS3620-50DGKT — Power Management (PMIC / Gate Driver)

TPS3620-50DGKT Battery Backup Circuit, 4.55V Threshold

MPNTPS3620-50DGKT
Last Buy

Texas Instruments TPS3620-50DGKT, Battery Backup Circuit, 1-channel voltage supervisor, 4.55V threshold, active-low push-pull reset, 60ms timeout, -40°C to 85°C, 8-VSSOP.

$4.2000Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS3620-50DGKT specifications
ParameterValue
TypeBattery Backup Circuit
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 timeout60ms Minimum
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)

Product details

Battery backup supervisor with a 4.55 V trip point

The push-pull, totem-pole output drives the reset line directly without an external pull-up resistor.

That means TI has issued a final purchase window — once that window closes, the TPS3620-50DGKT will no longer be manufactured. Any remaining stock moves through the surplus and independent distribution channel. If you have an active BOM position, secure your lifetime buy quantity now and qualify a replacement before the last order date passes.

What the 60 ms reset timeout buys you

The 60 ms minimum reset timeout is the period the part holds the processor in reset after the supply rail has returned above the threshold. That window covers the oscillator start-up, PLL lock, and internal regulator settling of most microcontrollers and FPGAs.

That covers most outdoor telecom, factory automation, and automotive cabin applications. The small footprint means it fits on tight mixed-signal boards where the battery backup supervisor sits near the coin cell holder or supercapacitor.

Frequently asked questions

Is TPS3620-50DGKT obsolete?

It is not yet obsolete, but it is in Last Buy status. That means TI has announced a final order window — once that window closes, the part will be discontinued. Act now to secure your lifetime buy or qualify a replacement.