RT4801H

RT4801H Dual Output LCD Bias for Smartphones and Tablets General Description The RT4801H is a highly integrated Boost and LDO and inverting charge pump to generate positive and negative output voltage. The output voltages can be adjusted from 4V to 6V with 100mV steps by I2C interface protocols. With its input voltage range of 2.5V to 5.5V, the RT4801H is optimized for products powered by single-cell batteries and symmetrical output currents up to 80mA. The RT4801H is available in the WL-CSP-15B 1.31x2.07 (BSC) package. The recommended junction temperature range is −40C to 125C, and the ambient temperature range is −40C to 85C. Ordering Information RT4801H Package Type WSC : WL-CSP-15B 1.31x2.07 (BSC) Note: Richtek products are Richtek Green Policy compliant and compatible with the current requirements of IPC/JEDEC J-STD-020. Features ⚫ 2.5V to 5.5V Supply Voltage Range ⚫ Up to 90% Efficiency with Small Magnetics ⚫ Support Up to 80mA Output Current ⚫ Low 1A Shutdown Current ⚫ Internal Soft-start Function ⚫ Short Circuit Protection Function ⚫ Over-Voltage Protection Function ⚫ Over-Current Protection Function ⚫ Over-Temperature Protection Function ⚫ Elastic Positive and Negative Voltage On/Off Control by ENP/ENN ⚫ Voltage Output from 4V to 6V per 0.1V ⚫ Low Input Noise and EMI ⚫ Output with Programmable Fast Discharge when IC Shutdown ⚫ Adjustable Output Voltage by I2C Compatible Interface ⚫ Available in the 15-Ball WL-CSP Package Applications ⚫ TFT-LCD Smartphones ⚫...