SG Micro LM431BQ
Precision programmable reference
The LM431BQ is a precision programmable shunt voltage reference that can be used in automotive applications. It is a three-terminal adjustable-output device that can keep stable under all capacitive loads. It requires two external resistors to set the output voltage from VREF to 36V.
The LM431BQ features low dynamic impedance, low noise, and low temperature coefficient to ensure a stable output voltage over a wide range of operating temperatures and currents. These high performances make it very suitable for multiple applications, such as precision audio components and flyback switching power supplies.
Key features
- Reference voltage tolerance at +25℃: 0.5%
- Sink-current capability: 1mA to 100mA
- High stability under capacitive load
- Very suitable for multiple applications
Additional features
- AEC-Q100 qualified for automotive applications device temperature Grade 1 TA = -40℃ to +125℃
- Adjustable output voltage: VREF to 36V
- Temperature drift: 5mV (TYP)
- Output impedance: 0.1Ω (TYP)
- Low output noise
- Operating junction temperature range: -40℃ to +125℃
- Available in a green SOT-23 package
Applications
- AEC-Q100 grade 1 applications
- Portable, battery-powered equipment
- Voltage monitoring
- Flyback switching power supplies
- Instrumentation
- Product testing
- Precision audio components
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