Brief Description
The KTD2159 is a TFT-LCD power supply IC for small and medium size displays for smartphones and tablets. The positive and negative output rails provide bias supplies for TFT LCD panels via the Source Driver IC. The device only requires a single inductor, to reduce the total PCB area.

FEATUREs
• Wide input voltage range (2.7V to 5.5V)
• Dual output regulator with single inductor
• High efficiency above 85%
• Charge pump with PFM mode at light load
• Programmable output voltages with external
   resistors
• Positive output voltage range
   ► +4.0V to +6.3V (100mV/step)
• Negative output voltage range
   ► -4.0V to -6.3V (100mV/step)
• 1.5% output voltage accuracy
• Regulated output current up to 80mA
• Active output discharge when disabled
• Integrated compensation and feedback circuits
• 1 µA shutdown supply current
• Pb-free WLCSP-15 and TDFN-14 packages
• -40°C to +85°C Temperature Range

APPLICATIONs
• Smartphone TFT-LCD
• Tablet TFT-LCD
• General Dual Power Supply Applications