TL4050B25-Q1 Automotive Catalog Precision Micropower Shunt Voltage Reference |

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Automotive Catalog Precision Micropower Shunt Voltage Reference



The TL4050-Q1 family of shunt voltage references are versatile easy-to-use references suitable for a wide array of applications. The two-terminal fixed-output device requires no external capacitors for operation and is stable with all capacitive loads. Additionally, the reference offers low dynamic impedance, low noise, and low temperature coefficient to ensure a stable output voltage over a wide range of operating currents and temperatures.

The TL4050-Q1 is available in three initial tolerances, ranging from 0.1% (maximum) for the A grade to 0.5% (maximum) for the C grade. Thus, a great deal of flexibility is available to designers in choosing the best cost-to-performance ratio for their applications. Packaged in the space-saving SOT-23-3 and SC-70 packages and requiring a minimum current of 45 µA (typical), the TL4050-Q1 also is ideal for portable applications.

The TL4050x-Q1 characterization is for operation over an ambient temperature range of –40°C to 125°C.


  • Qualified for Automotive Applications
  • Fixed Output Voltages of 2.048 V, 2.5 V, 4.096 V, 5 V
  • Tight Output Tolerances and Low Temperature Coefficient
    • Max 0.1%, 50 ppm/°C – A Grade
    • Max 0.2%, 50 ppm/°C – B Grade
    • Max 0.5%, 50 ppm/°C – C Grade
  • Low Output Noise: 41 µVRMS Typ
  • Wide Operating Current Range:
    60 μA Typ to 15 mA
  • Stable With All Capacitive Loads; No Output Capacitor Required
  • Available in Extended Temperature Range: –40°C to 125°C


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Part number Order Reference voltage VO (V) VO adj (Min) (V) VO adj (Max) (V) Initial accuracy (Max) (%) Temp coeff (Max) (ppm/ degree C) Rating Operating temperature range (C) Iz for regulation (Min) (uA) Iout/Iz (Max) (mA) Package Group
TL4050B25-Q1 Order now Fixed     2.5     2.5     2.5     0.2     50     Automotive     -40 to 125     41     20     SC70 | 5
SOT-23 | 3    
TL4050A50-Q1 Order now Fixed     5     5     5     0.1     50     Automotive     -40 to 125     80     10     SC70 | 5
SOT-23 | 3    
TL4050B41-Q1 Samples not available Fixed     4.096     4.096     4.096     0.2     50     Automotive     -40 to 125     52     20     SOT-23 | 3    
TL4050C50-Q1 Samples not available Fixed     5     5     5     0.5     50     Automotive     -40 to 125     56     20     SOT-23 | 3