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Product Detailed Parameters
- Description：IC VREF SHUNT 0.5% SOT23-3
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Current - Output：15 mA
- Operating Temperature：-40°C ~ 85°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 LM4040CYM3-5.0-TR is a precision micropower shunt voltage reference manufactured by Microchip Technology in the SOT-23 surface-mount package. It provides a fixed reverse-breakdown output voltage of 5.000V with an initial accuracy tolerance of ±0.5%. The device operates within a temperature range of -40°C to +85°C and features a maximum average temperature coefficient of 100 ppm/°C at 1 mA. Its operating current ranges from a minimum of 74 µA to a maximum of 15 mA.
Feature Summary
- Bandgap reference architecture with temperature drift curvature correction for stable voltage accuracy across wide operating temperatures and currents.
- Capable of tolerating capacitive loads without requiring an external output capacitor, though stability requires an external capacitor greater than 10 nF between pins.
- Low dynamic impedance ensures consistent performance under varying load conditions.
Applications
- Battery-powered equipment
- Data acquisition systems
- Instrumentation
- Process control
- Precision audio components
Procurement Notes
Verify that the specific ordering suffix matches the required accuracy grade (C-grade) and packaging format (Tape and Reel). Confirm the manufacturer designation aligns with Microchip Technology specifications. Ensure the component meets the required industrial temperature range and electrical characteristics defined in the official datasheet before integration.
Selection Notes
Select this component when a fixed 5.000V reference with ±0.5% initial accuracy is required in a space-constrained design. It is suitable for applications needing low power consumption with a minimum operating current of 74 µA. Consider the maximum operating current limit of 15 mA when designing the series resistor network for the shunt regulator application.
Part Context
This part belongs to the LM4040/LM4041 family of precision micropower shunt voltage references. The LM4040 variant offers fixed voltages including 2.500V, 4.096V, and 5.000V, while the LM4041 includes a 1.225V fixed version and an adjustable version. Both families share similar low-power characteristics and small SOT-23 packaging options.
Replacement Considerations
LM4040DYM3-5.0-TR
FAQ
What is the minimum operating current for the LM4040-5.0?
The minimum operating current for the LM4040-5.0 is 74 µA at +25°C.
Does the LM4040 require an output capacitor for stability?
No external output capacitor is required; however, the device can tolerate capacitive loads. An external capacitor greater than 10 nF must be connected between the (+) and (-) pins for stable operation.
