The RT4801A 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, RT4801A is optimized for products powered by single-cell batteries and symmetrical output currents up to 80mA. The RT4801A is available in the WL-CSP-15B 1.31x2.07 (BSC) package.

应用

TFT-LCD Smartphones

TFT-LCD Tablets

General Dual Power Supply Applications

关键特性

2.5V to 5.5V Supply Voltage Range

Up to 90% Efficiency with Small Magnetics

Support Up to 80mA Output Current

Low 1μA 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