Features
| | Output voltage initial accuracy 0.1% |
| | Low temperature coefficient 75 ppm/°C |
| | Low Supply Current, 60 µA |
| | Enable pin allowing a 3 µA shutdown mode |
| | Up to 20 mA output current |
| | Voltage options 1.8V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V |
| | Custom voltage options available (1.8V to 4.096V) |
| | VIN range of VREF + 400 mV to 5.5V @10 mA
|
| | Stable with low ESR ceramic capacitors |
| | SOT23-5 Package |
| | −40°C to 125°C junction temperature range |
| | LM4128AQ/BQ/CQ/DQ are AEC-Q100 Grade 1 qualified and are manufactured on an Automotive Grade Flow |
General Description
Ideal for space critical applications, the LM4128 precision voltage reference is available in the SOT-23 surface-mount package.
The LM4128’s advanced design eliminates the need for an external stabilizing capacitor while ensuring stability with capacitive
loads up to 10 µF, thus making the LM4128 easy to use.
Series references provide lower power consumption than shunt references, since they do not have to idle the maximum possible
load current under no load conditions. More...
Applications
| | Instrumentation & Process Control |
| | Test Equipment |
| | Data Acquisition Systems |
| | Base Stations |
| | Servo Systems |
| | Portable, Battery Powered Equipment |
| | Automotive & Industrial Electronics |
| | Precision Regulators |
| | Battery Chargers |
| | Communications |
| | Medical Equipment |
| |
Typical Application
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| Parameters | Values |
| Initial Accuracy (+/-) Max |
0.2, 1, 0.1, 0.5 % |
| Reference Voltage |
1.8 V, 2.5 V, 3 V, 4.096 V, 2.048 V, 1.024 V, 3.3 V |
| Tempco, max (ppm/C) |
100, 75 ppm |
| Input Min Voltage |
3.4, 4.496, 3.7, 2.2, 2.448, 2.9 Volt |
| Input Max Voltage |
5.5 Volt |
| Dropout Voltage |
0.4 Volt |
| Quiescent Current |
0.06, 0.1 mA |
| Output Current |
20 mA |
| Voltage Noise (rms) |
170 uV |
| Long Term Stability (ppm/1000hr) |
50 ppm |
| Temperature Min |
-40 deg C |
| Temperature Max |
125 deg C |
| AEC Q-100 Automotive Grade |
1 |
| Automotive |
Yes |
| PowerWise |
No, Yes |
Typical Performance
*click for larger image
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Also Recommended
Additional Resources
Application Notes

Connection Diagram
*click for larger image
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