LM2931CDR2G: High-Performance Adjustable Linear Voltage Regulator IC | Onsemi
LM2931CDR2G: High-Performance Adjustable Linear Voltage Regulator IC by Onsemi
The LM2931CDR2G is a premium-quality low-dropout (LDO) linear voltage regulator manufactured by Onsemi, a globally trusted leader in semiconductor solutions. This advanced IC delivers precise adjustable voltage regulation for power-sensitive applications, combining efficiency, reliability, and compact design in an 8-SOIC package. Below, we explore its technical specifications, applications, and advantages in detail to help engineers and designers make informed decisions.
Product Overview
The LM2931CDR2G falls under the PMIC - Voltage Regulators - Linear category of Integrated Circuits (ICs). As an Active Product, it is readily available for integration into new and existing designs. This regulator is engineered to provide stable, adjustable positive output voltages with exceptional accuracy, making it a preferred choice for modern electronic systems.
Key Features and Specifications
1. Adjustable Positive Voltage Regulation
- Output Configuration: Positive
- Output Type: Adjustable (2.7V to 29.5V)
- Input Voltage Range: Up to 26V
- Dropout Voltage: 0.6V @ 100mA (typ.)
The LM2931CDR2G supports a wide adjustable output range, enabling customization for diverse applications. Its low dropout voltage ensures efficient performance even with small voltage differentials between input and output.
2. High Efficiency and Low Power Consumption
- Output Current: 100mA
- Quiescent Current (IQ): 1mA (typ.)
- Supply Current: 6mA
With minimal quiescent current, this regulator is ideal for battery-powered devices, extending operational life by reducing unnecessary power drain.
3. Robust Protection Mechanisms
- Overcurrent Protection (OCP): Prevents damage during short-circuit or overload conditions.
- Thermal Shutdown: Automatically disables the device at high temperatures (>150 C).
These features enhance reliability in harsh environments, such as automotive or industrial settings.
4. Wide Operating Temperature Range
- Temperature Range: -40 C to +125 C
Suitable for extreme conditions, including automotive under-hood applications and outdoor electronics.
5. Compact and Surface-Mount Design
- Package: 8-SOIC (3.90mm Width)
- Mounting Type: Surface Mount (SMT)
The small footprint saves PCB space and simplifies automated assembly processes.
Applications of LM2931CDR2G
This versatile regulator is widely used in:
- Automotive Systems: ECU power supplies, infotainment systems.
- Industrial Equipment: Sensors, control modules, PLCs.
- Consumer Electronics: Portable devices, IoT gadgets.
- Telecommunications: Base stations, network hardware.
- Medical Devices: Battery-operated diagnostic tools.
Why Choose LM2931CDR2G?
- Precision Regulation: Adjustable output with 2% accuracy.
- Energy Efficiency: Low dropout and quiescent current.
- Durability: Protections against overcurrent, overheating.
- Industry Compliance: Meets AEC-Q100 for automotive use.
Technical Comparison with Competing Models
| Feature | LM2931CDR2G | Competitor A | Competitor B |
|---|---|---|---|
| Input Voltage | 26V | 20V | 24V |
| Output Current | 100mA | 150mA | 50mA |
| Dropout Voltage | 0.6V | 1.2V | 0.8V |
Design Tips for LM2931CDR2G
- Use a 10 F ceramic capacitor at the output for stability.
- Ensure proper heat dissipation in high-temperature environments.
- Refer to the Onsemi datasheet for layout guidelines.
Conclusion
The LM2931CDR2G is a top-tier linear voltage regulator offering unmatched flexibility, efficiency, and robustness for modern electronics. Its adjustable output, wide temperature range, and compact design make it indispensable for automotive, industrial, and consumer applications. Partner with Onsemi for reliable power management solutions. Order yours today!
For pricing, samples, or technical support, contact our sales team or visit our official distributor platform.