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Texas Instruments TPS3809L30QDBVRQ1 — Power Management (PMIC / Gate Driver)

TPS3809L30QDBVRQ1 Simple Reset/Power-On Reset, AEC-Q100

MPNTPS3809L30QDBVRQ1
Active

Texas Instruments TPS3809L30QDBVRQ1, Simple Reset/Power-On Reset, Active Low, Push-Pull Output, AEC-Q100, 2.64V Threshold, 120ms Minimum Reset Timeout, -40°C to 125°C, SOT-23-3.

$0.4245Ref. price · indicative, final on quote
Texas Instruments TPS3809L30QDBVRQ1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS3809L30QDBVRQ1 specifications
ParameterValue
TypeSimple Reset/Power-On Reset
SeriesAutomotive, AEC-Q100
MountingSurface Mount
Voltage - threshold2.64V
Number of voltages monitored1
Operating temperature-40°C~125°C(TA)
ResetActive Low
OutputPush-Pull, Totem Pole
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout120ms Minimum
CaseTO-236-3, SC-59, SOT-23-3

Product details

2.64V threshold — what it means for a 3.3V rail

The 2.64V threshold is set to detect an undervoltage condition on a nominal 3.3V supply before the downstream logic enters an indeterminate state. At 2.64V, the supervisor asserts reset with a guaranteed minimum 120ms timeout, giving the supply time to recover or the system time for an orderly shutdown. For a 3.3V rail with ±5% tolerance, the lowest valid voltage is 3.135V, so the 2.64V trip point provides roughly 0.5V of margin before the reset fires — adequate for most automotive ECU power designs.

For a tier-one ECU program, the AEC-Q100 cert is the minimum gate — this part clears it without a PPAP waiver.

Frequently asked questions

Is TPS3809L30QDBVRQ1 automotive qualified?

Yes, it is AEC-Q100 qualified, as indicated by the Q in the order code.

What is the reset timeout of TPS3809L30QDBVRQ1?

The reset timeout is 120ms minimum. After the supply rises above the threshold, the output remains low for at least 120ms before releasing the reset.

What is the difference between TPS3809L30QDBVRQ1 and TPS3809L30DBVR?

The TPS3809L30QDBVRQ1 is the AEC-Q100 qualified automotive-grade variant. The TPS3809L30DBVR is the commercial-grade version without automotive qualification. Both share the same 2.64V threshold, 120ms timeout, push-pull output, and SOT-23-3 package. The Q variant can replace the commercial part in a design, but the reverse is not valid for automotive applications requiring AEC-Q100.