FA6600 is a high-efficiency power management control IC that is specified for the TV platform. FA6600 is used with a 12V power supply and a 3.3V / 5V standby power supply; besides, it integrates two synchronous PWM controllers, two regulators, monitoring, and control functions into a 48 pin QFN/LQFP package.
A brief analog block description of FA6600 describes here. LDO1 provides an output current of 200mA with an output voltage of 3.3V ±2%. LDO2 provides output current 2A with output voltage 0.8V to 2.0V ±2% and is adjusted by external resistors. PWM1 and PWM2 are the synchronous buck PWM DC/DC controllers with an internal 600kHz fixed-frequency oscillator which covers 0 to 100% duty ratio.
The high-performance digital block consists of internal soft-start, monitoring, and protection functions, the LED function which is controlled by host and I2C interface and provides adjustable linear controllers mechanism for dynamic over-current/under-voltage use.
FA6600 provides two working modes. At the normal mode, it works with a system that supplies 12V power and a 3.3V / 5V standby power. At the suspend mode, it works with supplying 3.3V / 5V standby power or a 12V power supply only system; besides, it can wake up the TV system from the suspend mode by KEYPAD/IR/CEC function calls.