Precision shunt reference for automotive systems — AEC-Q100 qualified
The Texas Instruments LM4050QCIM3-2.0/NOPB is a precision shunt voltage reference delivering a fixed 2.048 V output with ±0.5% initial tolerance and a temperature coefficient of 50 ppm/°C. Rated for the full -40°C to 125°C automotive temperature range, it carries AEC-Q100 qualification — the documentation an OEM auditor expects for PPAP submission. The shunt topology means it operates like a two-terminal Zener: no external pass transistor, just a cathode-to-load connection with a single current-limiting resistor. Output current capacity is 15 mA, and the minimum cathode current for regulation is 65 µA, so the part idles efficiently in battery-backed or always-on ECU rails.
Lifecycle and compliance — active, no LTB risk
ROHS3 compliant. The AEC-Q100 qualification is listed at the series level, so the PPAP and reliability data package exists for automotive program sign-off. No direct successor part is indicated; the same order code remains the correct procurement target for new and existing designs.