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Texas Instruments LM4128BQ1MF3.3/NOPB — Discrete Semiconductors
Texas Instruments

LM4128BQ1MF3.3/NOPB Voltage Reference, 3.3V ±0.2%, SOT-23-5

MPNLM4128BQ1MF3.3/NOPB
End of Life

Texas Instruments LM4128BQ1MF3.3/NOPB, Automotive AEC-Q100 series voltage reference, 3.3V fixed output, ±0.2% tolerance, 20 mA output, 100 µA supply, SC-74A/SOT-753, -40°C to 125°C.

$3.81Ref. price · indicative, final on quote
LM4128BQ1MF3.3/NOPB 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.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

LM4128BQ1MF3.3/NOPB Technical Specifications
ParameterValue
SeriesAutomotive, AEC-Q100
Output typeFixed
Mounting typeSurface Mount
Reference typeSeries
Voltage - input3.7V ~ 5.5V
Voltage - output (Min (Fixed))3.3V
Current - output20 mA
Current - supply100µA
Operating temperature-40°C ~ 125°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
Tolerance±0.2%
CaseSC-74A, SOT-753
Noise - 0.1Hz to 10Hz310µVp-p
Temperature coefficient75ppm/°C

Product details

3.3 V reference for automotive and industrial rails

The Texas Instruments LM4128BQ1MF3.3/NOPB is a 3.3 V fixed-output series voltage reference qualified to AEC-Q100 for automotive applications. It delivers up to 20 mA output current while drawing only 100 µA supply current — a combination that suits it for biasing sensor front-ends, supplying ADC reference rails, or setting a stable voltage for a microcontroller's analog peripherals in under-hood and engine-bay environments. The ±0.2% initial tolerance and 75 ppm/°C temperature coefficient keep the output within tight bounds across the full -40°C to 125°C operating range.

What the ratings mean for the BOM

The 20 mA output rating is the maximum the reference can source while maintaining regulation. The 100 µA quiescent current is the reference's own draw.

Lifecycle and sourcing

Listed as Active in production with ROHS3 compliance. No end-of-life notice or last-time-buy window is in effect.

Frequently asked questions

What compliance documentation is available for LM4128BQ1MF3.3/NOPB?

The part is ROHS3 Compliant. Standard TI documentation — datasheet, PCN history, and certificate of compliance — is available upon request.