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Texas Instruments TLV73311PQDBVRQ1 — DC-DC Power Modules
Texas Instruments

TLV73311PQDBVRQ1 LDO Regulator, AEC-Q100, 1.1V Fixed Output

MPNTLV73311PQDBVRQ1
End of Life

Texas Instruments TLV73311PQDBVRQ1, Automotive AEC-Q100 series, positive fixed-output LDO regulator, 1.1V, 300mA, dropout 0.51V max, quiescent 78 µA, SC-74A/SOT-753 surface-mount, -40°C to 125°C.

$0.51Ref. price · indicative, final on quote
TLV73311PQDBVRQ1 datasheet
PackagingSC-74A, SOT-753
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

TLV73311PQDBVRQ1 Technical Specifications
ParameterValue
SeriesAutomotive, AEC-Q100
Output typeFixed
Mounting typeSurface Mount
Voltage - input5.5V
Voltage dropout0.51V @ 300mA
Voltage - output (Min (Fixed))1.1V
Current - output300mA
Current - quiescent78 µA
Operating temperature-40°C ~ 125°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
CaseSC-74A, SOT-753
Control featuresEnable
Protection featuresOver Current, Over Temperature, UVLO
Number of regulators1
Output configurationPositive

Product details

Fixed 1.1V automotive LDO — what the AEC-Q100 grade means for the BOM

The TLV73311PQDBVRQ1: AEC-Q100 qualified positive-output LDO regulator delivering a fixed 1.1V at 300mA, in a SOT-23-5 package.

Protection set — built-in, no external supervisor needed

The TLV73311PQDBVRQ1 integrates over-current, over-temperature, and under-voltage lockout (UVLO) protection. For a simple point-of-load rail feeding a 1.1V core, this removes the need for a separate supervisory IC or reset generator. The Enable pin allows the system MCU or power-management sequencer to gate the output. Fixed output means no external resistor divider — the BOM count stays low.

Frequently asked questions

Is TLV73311PQDBVRQ1 AEC-Q100 qualified?

Yes, the part is listed under the Automotive, AEC-Q100 series. That qualification covers the stress tests (HTOL, ESD, latch-up, temperature cycling, etc.) that an OEM auditor expects in a PPAP package. The operating temperature range is -40°C to 125°C, suitable for under-hood and cabin applications.

Is TLV73311PQDBVRQ1 compatible with 5V input?

Yes, the maximum input voltage is 5.5V, so a 5V rail is within range. The fixed 1.1V output will regulate from a 5V bus as long as the input stays above the dropout threshold.

What is the equivalent or replacement for TLV73311PQDBVRQ1?

There is no direct pin-compatible second-source listed. Among peers, the TPS70612DBVT offers a 1.2V fixed output at 150mA with reverse-polarity protection, but at half the current and a different output voltage. The TPS7A0313PDBVR provides 1.3V at 200mA with lower quiescent (300 nA typ). Neither is a drop-in replacement — verify output voltage, current rating, and pinout against your board before substituting.

Can I order TLV73311PQDBVRQ1 in cut tape or reel?

Yes, the part is available in Tape & Reel (TR) or Cut Tape (CT) formats. The Q1 suffix on the order code indicates the automotive-qualified variant; the packaging suffix determines reel vs cut-tape delivery.