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RT4813 Datasheet(PDF) 1 Page - Richtek Technology Corporation |
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RT4813 Datasheet(HTML) 1 Page - Richtek Technology Corporation |
1 / 16 page RT4813 Copyright © 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS4813-00 April 2016 www.richtek.com 1 High Efficiency Boost Converter General Description The RT4813 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. The RT4813 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 3.1A. Quiescent current in Shutdown Mode is less than 1 A, which maximizes battery life. Ordering Information RT4813 Package Type QUF : UQFN-9L 2x2 (FC) (U-Type) Lead Plating System G : Green (Halogen Free and Pb Free) Note : Richtek products are : RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. Features CMCOT Topology and Small Output Ripple when VIN Close VOUT Voltage Operates from a Single Li-ion Cell : 1.8V to 5.5V Adjustable Output Voltage : 1.8V to 5.5V PSM Operation Up to 96% Efficiency Input Over Current Limit Input / Output Over Voltage Protection Programmable Average Output Current Limit Range : 3100mA to 1225mA Internal Compensation Output Discharge Output Short Protection True Load Disconnect Applications Single-Cell Li-Ion, LiFePO4 Smart-Phones Portable Equipment Marking Information 3V : Product Code W : Date Code 3VW Simplified Application Circuit GND SW VOUT SCL L1 C1 VIN C2 C3 FB RT4813 R1 R2 VOUT SDA I 2C Control VIN EN EN R3 |
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