Please note that due to COVID-19 related restrictions in our warehouse area (Mumbai, Maharashtra), all new online orders will be shipped after May 15, 2021 only.

LM4040D20IDBZR - Fixed 2.048V 45uA Micropower Shunt Voltage Reference 3Pin SOT-23

No reviews yet Write a Review
Evelta SKU:
Manufacturer Part Number:
₹35.40 inc. GST
₹30.00 ex. GST
Request a quote for higher quantities


The LM4040 series of shunt voltage references are versatile, easy-to-use references that cater to a vast array of applications. The 2-pin 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 LM4040 uses fuse and Zener-zap reverse breakdown voltage trim during wafer sort to offer four output voltage tolerances, ranging from 0.1% (max) for the A grade to 1% (max) for the D grade. Thus, a great deal of flexibility is offered to designers in choosing the best cost-to-performance ratio for their applications.

Packaged in space-saving SOT-23-3 package and requiring a minimum current of 45 uA (typ), the LM4040 also is ideal for portable applications.

Key Features
  • Fixed Output Voltages of 2.048V
  • Tight Output Tolerances and Low Temperature Coefficient
  • Max 1.0%, 150 ppm/C – D Grade
  • Low Output Noise: 35 uVRMS Typ
  • Wide Operating Current Range: 45 uA Typ to 15 mA
  • Stable With All Capacitive Loads; No Output Capacitor Required
  • Temperature Range: –40C to 85C

LM4040 Simplified Schematic


Extra Information

Texas Instruments (TI)
Number of Pins:
Surface Mount
Cathode Current:
75 uA
Max Operating Temperature:
125 C
Max Output Current:
15 mA
Max Output Voltage:
2.048 V
Min Operating Temperature:
-40 C
Number of Channels:
Output Current:
15 mA
Output Voltage:
2.048 V
Reference Type:
Fixed, Shunt
Reference Voltage:
2.048 V
Temperature Coefficient:
150 ppm/C
1 %
1.22 mm
2.92 mm
1 mm
1.3 mm
Lead Free:
Lead Free

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.