The HA13173H is a multiple voltage regulator designed for car audio systems.
It has various output voltages for different components of the audio system, such as a 5.0 V output for a microcontroller, 3.3 V output for a Digital Signal Processor, and 8.0 V output for a CD driver.
The IC also has features such as standby current, low saturation output for audio, output current limit circuit, and built-in thermal shutdown circuit.
The document also includes pin descriptions, equivalent circuit, timing chart, block diagram, external parts lineup, absolute maximum ratings, electrical characteristics, and evaluation circuit.
It provides information on the recommended values for external parts and the main characteristics of the voltage regulator.