The HA179L09U is a three-terminal positive voltage regulator manufactured by Renesas Electronics America. It is designed to provide a stable and regulated 9V output voltage for various electronic circuits. This regulator is part of a series known for its compact size, ease of use, and reliable performance.

Applications

• Battery chargers
• Power supplies for small electronic devices
• Regulation for sensors and instrumentation
• Control circuits
• General-purpose voltage regulation

Features

• Fixed 9V output voltage: Provides a stable and precise regulated output.
• Internal short-circuit current limiting: Protects the regulator from damage due to short circuits.
• Internal thermal overload protection: Shuts down the regulator to prevent overheating.
• Small package size: Allows for easy integration into compact electronic devices.
• Three-terminal configuration: Simplifies circuit design and reduces the number of external components.
• Wide operating temperature range: Suitable for use in various environments.

Benefits

• Stable and reliable voltage regulation: Ensures consistent performance of connected devices.
• Simplified circuit design: Reduces the time and effort required for design and implementation.
• Protection against overcurrent and overheating: Enhances the reliability and lifespan of the regulator.
• Compact size: Enables integration into small electronic devices.
• Cost-effective solution: Provides a reliable regulated voltage at a reasonable price.

Additional Details

The HA179L09U regulator requires minimal external components for operation, typically just input and output capacitors for stability. It is designed to be robust and tolerant of variations in input voltage and load current. The internal thermal overload protection feature activates when the junction temperature exceeds a safe level, preventing damage to the regulator. The short-circuit current limiting feature restricts the output current to a safe level, protecting the regulator and connected circuitry. The regulator is available in a variety of through-hole and surface-mount packages to suit different application requirements. The HA179L09U is designed for general purpose use.