Catalog
Dual Output AMOLED Display Power Supply
Key Features
• 2.9V to 4.5V Input Voltage Range0.8% Output Voltage Accuracy VPOSExcellent Line Transient Regulation300mA Output CurrentFixed 4.62V Positive OutputVoltageDigitally Programmable VNEGTPS65138: –2.2V to –6.2VTPS65138A: –2.2V to –5.2V-4.9V Default Value for VNEGShort Circuit ProtectionThermal Hhutdown3-mm × 3-mm QFN Package2.9V to 4.5V Input Voltage Range0.8% Output Voltage Accuracy VPOSExcellent Line Transient Regulation300mA Output CurrentFixed 4.62V Positive OutputVoltageDigitally Programmable VNEGTPS65138: –2.2V to –6.2VTPS65138A: –2.2V to –5.2V-4.9V Default Value for VNEGShort Circuit ProtectionThermal Hhutdown3-mm × 3-mm QFN Package
Description
AI
The TPS65138 is designed to drive AMOLED displays (Active Matrix Organic Light Emitting Diode) requiring positive and negative supply rails. The device integrates boost converter and inverting buck boost converter designed suitable for battery operated products. The digital control pin (CTRL) allows programming the negative output voltage in digital steps. The TPS65138 uses a novel technology enabling excellent line and load regulation. This is required to avoid disturbance of the AMOLED display by the input voltage disturbances occurring during transmit periods in mobile phones.
The TPS65138 is designed to drive AMOLED displays (Active Matrix Organic Light Emitting Diode) requiring positive and negative supply rails. The device integrates boost converter and inverting buck boost converter designed suitable for battery operated products. The digital control pin (CTRL) allows programming the negative output voltage in digital steps. The TPS65138 uses a novel technology enabling excellent line and load regulation. This is required to avoid disturbance of the AMOLED display by the input voltage disturbances occurring during transmit periods in mobile phones.
