Professional IC Distribution & Technical Solutions

The TLE4291 is a linear voltage regulator manufactured by Infineon Technologies. Below are its key specifications, descriptions, and features:

Specifications:

• Input Voltage Range: 5.5 V to 42 V
• Output Voltage: 5 V (fixed)
• Output Current: Up to 400 mA
• Dropout Voltage: Typically 400 mV at full load
• Line Regulation: ±0.5% (typical)
• Load Regulation: ±1% (typical)
• Quiescent Current: Typically 50 µA (low-power mode)
• Operating Temperature Range: -40°C to +150°C
• Package Options: PG-TO252-3 (DPAK), PG-TO263-3 (D2PAK)

Descriptions:

• The TLE4291 is a low-dropout (LDO) voltage regulator designed for automotive and industrial applications.
• It provides a stable 5 V output with high accuracy and low quiescent current, making it suitable for battery-powered systems.
• Includes built-in protection features such as over-temperature shutdown, short-circuit protection, and reverse polarity protection.

Features:

• Wide Input Voltage Range (5.5 V – 42 V) – Suitable for automotive and harsh environments.
• Low Dropout Voltage – Ensures efficient operation even with low input voltages.
• Low Quiescent Current – Ideal for power-saving applications.
• High Accuracy Output Voltage (±2%) – Ensures stable power supply.
• Integrated Protection Functions:
• Over-temperature shutdown
• Short-circuit protection
• Reverse polarity protection
• AEC-Q100 Qualified – Meets automotive reliability standards.
• Green Product (RoHS Compliant) – Environmentally friendly.

This regulator is commonly used in automotive ECUs, sensors, and industrial control systems where reliable voltage regulation is critical.

(Note: Always refer to the latest datasheet from Infineon for detailed technical information.)