Description
   The SM4805 consists of seven switching regulators (AVDD boost converter, HAVDD buck converter, DVDD1 to 3 buck converters, VGH boost converter and VGL buck-boost converter), VGL2 negative linear regulator, 4-channel gamma buffers, dual operational amplifiers and a programmable 7-bit VCOM calibrator with EEPROM for VCOM voltage calibration.

FEATUREs
• 10.2 V to 14.7 V Input Supply Voltage Range 
• Programmable Switching Frequency 
• Asynchronous Boost Converter for AVDD 
   . Programmable Output Voltage: 12.8 V to 19 V
   . Programmable Current Sense Threshold Voltage 
• Forced Synchronous Buck Converter for HAVDD 
   . Programmable Output Voltage: 6.4 V to 9.5 V
   . 1.5 A Switch Current Limit 
• 3-Channel Asynchronous Buck Converter for
   DVDD1, 2, 3 
   . Output Voltage: 0.8 V to 3.5 V
   . 2.5 A Switch Current Limit 
• Asynchronous Boost Converter for VGH 
   . Programmable Output Voltage: 25 V to 43 V
   . 2 A Switch Current Limit
   . Temperature-compensated Output 
• Asynchronous Buck-Boost Converter for VGL 
   . Programmable Output Voltage: -16 V to -4 V
   . 1.5 A Switch Current Limit 
• Negative Linear Regulator for VGL2 
   . Programmable Output Voltage: -9 V to -3 V
   . Internal Transistors for Sinking/Sourcing Output Current
• Positive Gate Pulse Modulation for VGPM
• Programmable Four Channel Gamma Reference Voltage
   Outputs with 9-bit Resolution 
• Programmable VCOM Calibrator with EEPROM 
   . 7-bit Adjustable Output Voltage 
• Dual Channel Operational Amplifiers 
   . 8-bit Programmable DACs for VCOM 1, 2 
• PG Function for Reliable Power Sequence 
• Programmable Output Voltages and Power-up Sequence

APPLICATIONs
• LCD TV and Monitor Panels