TPS65110RGER

The Texas Instruments TPS65110RGER is a compact power supply solution providing three voltages required by LTPS LCD displays. It utilizes a charge pump topology to generate regulated outputs. The VCC charge pump offers precise, high-efficiency, and low-ripple DC/DC conversion for LCD analog power, with automatic boost ratio adjustment. The VDD charge pump provides a higher positive voltage, and the VSS charge pump supplies the negative output voltage. Power up/down sequences are internally set and secured even during sudden VIN drops.

Key electrical specifications include an input voltage range of 2.4 V to 5.5 V. The device offers fixed output voltages of 3.3 V, 7.5 V, and -2.7 V, with VCC output current capability of 16 mA, VDD at 2 mA, and VSS at 1 mA. It features a typical quiescent current of 50 µA and less than 1 µA shutdown current. The operating temperature range is -40°C to 85°C.

This regulator is housed in a 24-pin VQFN (4x4) package, suitable for surface mounting. Its design is optimized for small form LTPS-LCD displays found in PDAs, Pocket PCs, and smartphones. The ultra-low output voltage ripple, typically 5 mV for the VCC output at 5 mA, is a significant feature for display applications.