RT4813AGQUF

The RT4813AGQUF from Richtek is a high efficiency boost converter in 9 pin UQFN package. It allows systems to take advantage of new battery chemistries that can supply significant energy when the battery voltage is lower than the required voltage for system power ICs. By combining built-in power transistors, synchronous rectification and low supply current. This IC provides a compact solution for systems using advanced Li-ion battery chemistries. This is a boost regulator designed to provide a minimum output voltage from a single-cell Li-Ion battery even when the battery voltage is below system minimum. In boost mode, output voltage regulation is guaranteed to a maximum load current of 3.25A. Quiescent current in shutdown mode is less than 1µA which maximizes battery life. It is used in single-cell Li-Ion, LiFePO4 smart-phones and portable equipment.

• Operates from a single Li-ion cell 1.8V to 5.5V
• CMCOT topology and small output ripple when VIN Close VOUT Voltage
• PSM operation, up to 96% efficiency, 0.5MHz switching frequency
• Input over current limit and input/output over voltage protection
• Average output current limit range from 3250mA to 2500mA
• Internal compensation, 2µA shutdown current
• Output discharge, line and load regulation of 0.5%
• Output short protection
• True load disconnect
• Ambient temperature range from -40°C to 85°C

Applications

Power Management, Industrial, Portable Devices

Warnings

Devices is ESD sensitive. Handling precaution is recommended.