Overview
The LV56801P is a multi-power supply system IC that provides four regulator outputs and two high side switches as well as a number of protection functions including overcurrent protection, overvoltage protection and overheat protection. It is an optimal power supply IC for car audio and car entertainment systems and similar products.

FEATUREs
• Four regulator output systems
For microcontroller: 3.3V output voltage, 200mA maximum output current
For CD drive: 8.0V output voltage, 1300mA maximum output current
For illumination: 8 to 12V output voltage (output can be set with external resistors), 300mA maximum output current
For audio systems: 8 to 9V output voltage (output voltage can be set with external resistors), 300mA maximum
output current
• Two VCC-linked high side switch systems
EXT: 350mA maximum output current, 0.5V voltage difference between input and output.
ANT: 300mA maximum output current, 0.5V voltage difference between input and output.
• Two VDD 3.3V-linked high side switch systems
SW5V: 200mA maximum output current, 0.25V voltage difference between input and output.
ACC (accessory voltage detection output): 100mA maximum output current, 0.25V voltage difference between input
and output.
• Overcurrent protection function
• Overvoltage protection function, typ 21V (excluding VDD 3.3V output)
• Overheat protection function, typ 175ºC
• On-chip accessory voltage detection circuit
• P-channel LDMOS used for power output block