Overview
The LMV431CM5/NOPB is a low-voltage, adjustable precision shunt regulator produced by Texas Instruments. This component is part of the LMV431 series, which includes the LMV431, LMV431A, and LMV431B. The LMV431CM5/NOPB is specifically designed for low-voltage operation and offers a wide adjustment range from 1.24 V to 30 V. It is suitable for various applications requiring zener diode type performance at low voltages.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Temperature | 0 | 70 | °C | |
| Lead Temperature (Soldering, 10 sec.) | 265 | °C | ||
| Internal Power Dissipation (TO-92 Package) | 0.78 | W | ||
| Internal Power Dissipation (SOT-23-5, -3 Package) | 0.28 | W | ||
| Cathode Voltage | 35 | V | ||
| Continuous Cathode Current | -30 | 30 | mA | |
| Reference Input Current | -0.05 | 3 | mA | |
| Initial Tolerance | 1% | % | ||
| Low Operation Current | 55 | µA | ||
| Dynamic Output Impedance | 0.25 | 0.4 | Ω | |
| Temperature Coefficient | 39 PPM/°C |
Key Features
- Low-voltage operation with a wide adjustment range from 1.24 V to 30 V.
- Temperature compensated for industrial temperature range (39 PPM/°C for the LMV431AI).
- Low operation current of 55 µA.
- Low output impedance of 0.25 Ω.
- Fast turn-on response.
- Low cost.
- Stable with capacitive loads greater than 10 nF and less than 50 pF.
Applications
- Shunt regulator.
- Series regulator.
- Current source or sink.
- Voltage monitor.
- Error amplifier in 3 V off-line switching regulators.
- Low dropout N-channel series regulator.
- Voltage detector.
Q & A
- What is the operating temperature range for the LMV431CM5/NOPB?
The operating temperature range for the LMV431CM5/NOPB is from 0°C to 70°C.
- What is the maximum cathode voltage for the LMV431CM5/NOPB?
The maximum cathode voltage is 35 V.
- What is the initial tolerance of the LMV431CM5/NOPB?
The initial tolerance is 1%.
- What is the typical operation current of the LMV431CM5/NOPB?
The typical operation current is 55 µA.
- What is the dynamic output impedance of the LMV431CM5/NOPB?
The dynamic output impedance is between 0.25 Ω and 0.4 Ω.
- What are the common applications of the LMV431CM5/NOPB?
Common applications include shunt regulators, series regulators, current sources or sinks, voltage monitors, error amplifiers in 3 V off-line switching regulators, and low dropout N-channel series regulators.
- How stable is the LMV431CM5/NOPB with capacitive loads?
The device is stable with capacitive loads greater than 10 nF and less than 50 pF.
- What is the temperature coefficient of the LMV431CM5/NOPB?
The temperature coefficient is 39 PPM/°C for the LMV431AI.
- What are the available package options for the LMV431CM5/NOPB?
The LMV431CM5/NOPB is available in SOT-23 packages.
- Is the LMV431CM5/NOPB RoHS compliant?
Yes, the LMV431CM5/NOPB is RoHS compliant.
