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Texas Instruments TPS3128E12DBVT — Power Management (PMIC / Gate Driver)

TPS3128E12DBVT Simple Reset/Power-On Reset, 1.14V Threshold

MPNTPS3128E12DBVT
Active

Texas Instruments TPS3128E12DBVT simple reset/power-on reset IC, active-low open-drain output, 1.14V threshold, 100ms minimum reset timeout, -40°C to 85°C operating temperature, SOT-23-5 package.

$1.7400Ref. price · indicative, final on quote
Texas Instruments TPS3128E12DBVT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS3128E12DBVT specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - threshold1.14V
Number of voltages monitored1
Operating temperature-40°C~85°C(TA)
ResetActive Low
OutputOpen Drain or Open Collector
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout100ms Minimum
CaseSC-74A, SOT-753

Product details

1.14V threshold supervisor for low-voltage rails

The open-drain output lets you pull up to any logic voltage up to the absolute maximum of the device, making it straightforward to interface with 1.8V, 2.5V, or 3.3V logic without a level shifter.

100ms reset timeout — covers power-up settling

The reset output holds low for a minimum of 100ms after the monitored voltage rises above the threshold. This gives the core supply and oscillator time to stabilise before the processor or FPGA starts executing code. The timeout is fixed — no external capacitor needed.

SOT-23-5 footprint, active production

Frequently asked questions

Can TPS3128E12DBVT replace TPS3128E12DBVR?

Yes, the TPS3128E12DBVT and TPS3128E12DBVR are functionally identical — same threshold, same timeout, same open-drain output. For most designs the parts are interchangeable; the DBVT variant gives you the flexibility to order smaller quantities in cut tape.

Is TPS3128E12DBVT compatible with 3.3V logic?

Yes. The open-drain output allows the reset signal to be pulled up to any voltage within the device's ratings, including 3.3V. Connect a pull-up resistor from the output pin to your 3.3V rail, and the reset line will swing between ground and 3.3V — no level translation needed.