The IRU1011A-33CHTR is a 1A low dropout (LDO) linear regulator designed for applications requiring a stable and regulated 3.3V output. This device offers excellent performance with low dropout voltage and high accuracy, making it suitable for various portable devices and power management systems.

Applications

• Motherboards: Used to regulate voltage for core logic and memory.
• Graphics cards: Provides regulated power to sensitive components.
• Hard disk drives: Supplies stable voltage to the HDD controller and motor.
• CD-ROM and DVD drives: Regulates the voltage for the drive's electronic components.
• Post regulators for switching converters: Improves ripple rejection and output accuracy.

Features

• 1A output current capability: Provides sufficient current for a variety of applications.
• Low dropout voltage: Minimizes power dissipation and extends battery life.
• 0.8% initial accuracy: Ensures a stable and accurate output voltage.
• Integrated short-circuit protection: Protects the regulator and load from damage due to short circuits.
• Thermal shutdown: Prevents overheating and damage to the regulator.
• Enable/disable control: Allows for external control of the regulator's operation.
• Fixed 3.3V output voltage: Provides a stable and predictable output voltage.

Benefits

• Improved efficiency: Low dropout voltage minimizes power dissipation and improves efficiency.
• Reliable operation: Short-circuit and thermal shutdown protection ensure reliable performance.
• Simplified design: Integrated features simplify the design process and reduce component count.
• Stable output voltage: High accuracy ensures a stable and predictable output voltage.
• Extended battery life: Low dropout voltage extends battery life in portable applications.

Additional Details

The IRU1011A-33CHTR features a typical dropout voltage of 250mV at 1A. It operates over a temperature range of -40°C to +125°C and is available in a TO-252 package.