The IRU1117CSTRPBF is a low dropout (LDO) linear regulator from Infineon Technologies, capable of providing up to 800mA of output current. It is designed for applications requiring a stable and regulated voltage from a wide range of input voltages. The device features a low dropout voltage, allowing it to operate efficiently even with a small difference between the input and output voltages.

Applications:

• Post Regulation for Switching Supplies
• Battery Chargers
• Microprocessor Power Supplies
• Personal Computers
• Instrumentation

Features:

• Low Dropout Voltage: Operates efficiently with a small difference between input and output voltages.
• 800mA Output Current: Provides sufficient current for a wide range of applications.
• Adjustable Output Voltage: Allows for precise voltage regulation to meet specific application requirements.
• Thermal Overload Protection: Shuts down the regulator in case of overheating to prevent damage.
• Current Limiting: Protects the regulator and load from damage due to excessive current.
• Reverse Battery Protection: Protects the regulator from damage if the battery is connected with reverse polarity.
• Fixed Output Voltage Options Available: Simplifies design for applications requiring a fixed output voltage.

Benefits:

• Stable Output Voltage: Provides a consistent and reliable voltage source for sensitive applications.
• High Efficiency: Reduces power consumption and heat generation, leading to lower operating costs and improved system reliability.
• Robust Protection Features: Protects the regulator and load from damage due to overcurrent, overtemperature, and reverse battery conditions.
• Small Footprint: Compact package size minimizes board space requirements.

Additional Details:

The IRU1117CSTRPBF operates with an input voltage range of 4.75V to 18V and can provide an adjustable output voltage down to 1.25V. It is available in a variety of packages, including SOT-223, TO-252, and TO-220. The device is commonly used in applications where a regulated voltage is needed from a battery or unregulated power supply.