The TLE4261-2 is a monolithic integrated low-dropout voltage regulator, designed for various automotive and industrial applications where a stable and regulated voltage supply is essential. Manufactured by Siemens (now Infineon Technologies), this regulator provides a fixed output voltage with integrated protection features.
Applications
- Automotive ECUs (Engine Control Units): Provides a stable voltage supply for sensitive electronic components in automotive control systems.
- Industrial Control Systems: Used in programmable logic controllers (PLCs) and other industrial automation equipment.
- Microcontroller Power Supplies: Regulates the voltage for microcontrollers in embedded systems.
- Sensor Power Supplies: Supplies regulated power to sensors in automotive and industrial environments.
- General-Purpose Voltage Regulation: Suitable for any application requiring a stable 5V supply from a higher voltage source.
Features
- Fixed Output Voltage: Provides a stable, fixed 5V output voltage.
- Low-Dropout Voltage: Operates with a low difference between the input and output voltage, maximizing efficiency.
- Short-Circuit Protection: Protects the regulator and connected circuitry from damage due to short circuits.
- Over-Temperature Protection: Shuts down the regulator if the junction temperature exceeds a safe limit.
- Reverse Polarity Protection: Protects against damage from accidental reverse polarity connection.
- Wide Input Voltage Range: Operates over a broad input voltage range, suitable for automotive applications.
Benefits
- Stable Voltage Supply: Ensures reliable operation of sensitive electronic components by providing a consistent voltage.
- Robust Protection Features: Protects against common electrical faults, enhancing system reliability.
- High Efficiency: Low-dropout operation minimizes power dissipation, improving overall system efficiency.
- Simplified Design: Requires minimal external components, simplifying the design process.
- Automotive Grade: Qualified for use in harsh automotive environments.
Technical Specifications (Typical):
- Output Voltage: 5V (fixed)
- Input Voltage Range: 6V to 45V
- Dropout Voltage: Typically 0.5V at rated current
- Output Current: Up to 400mA or 500mA depending on the specific variant - consult the datasheet.
- Quiescent Current: Low quiescent current for battery-powered applications.
- Operating Temperature Range: -40°C to +150°C
- Package: PG-TO252-5-11 (DPAK)
For detailed electrical characteristics, application notes, and package dimensions, refer to the official Infineon Technologies TLE4261-2 datasheet. Always consult the datasheet for specific design requirements and recommendations.
