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Product Detailed Parameters
- Description：IC VREF SHUNT 5V SOT23-3
- Series：-
- Mfr：STMicroelectronics
- Package：Bulk
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Current - Output：15 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The LM4040AELT-5.0 is a micropower shunt voltage reference manufactured by STMicroelectronics, providing a fixed 5.0 V output with ±0.1% initial accuracy at 25 °C. It operates within an industrial temperature range of -40 °C to +125 °C and features a maximum temperature coefficient of 70 ppm/°C. The device draws an ultra-low operating current of 10 µA at 25 °C and exhibits very low LF noise of typically 10 µVp-p. Packaged in SOT-23-3L, it remains stable when used with capacitive loads.
Feature Summary
- Fixed 5.0 V output with high precision
- Ultra-low operating current for power efficiency
- Low LF noise performance
- Stable operation with capacitive loads
Applications
- Portable battery-powered equipment
- Data acquisition systems
- Instrumentation
Procurement Notes
Verify the specific suffix 'LT' indicates tape and reel packaging configuration. Confirm RoHS compliance status as Ecopack2. Ensure the ordering code matches the required 5.0 V output variant. Check for any regional distribution restrictions or specific handling requirements during procurement.
Selection Notes
Select this component for designs requiring a precise 5.0 V reference with minimal power consumption. The SOT-23-3L package suits space-constrained layouts. Verify that the load capacitance does not exceed stability limits despite the device's general capacitive load stability. Consider the 70 ppm/°C temperature coefficient for thermal environment constraints.
Part Context
This part belongs to the LM4040 family of micropower shunt voltage references. The family offers various fixed output voltages including 2.048 V, 2.5 V, 3.0 V, 4.096 V, and 5.0 V. Accuracy grades include A (±0.1%), B (±0.2%), C (±0.5%), and D (±1%). The LM4040AELT-5.0 represents the highest precision grade in the 5.0 V option.
Replacement Considerations
LM4040BET-5.0: Lower accuracy grade (±0.2%). LM4040DET-5.0: Lower accuracy grade (±1%). LM4040CELT-5.0: Lower accuracy grade (±0.5%). These are direct functional substitutes within the same family.
