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The RT8581 is a boost converter that integrates built-in power transistors, synchronous rectification, and low supply current to provide a compact solution for systems using advanced Li-Ion batteries. The RT8581 is capable of supplying significant energy when the battery voltage falls below the voltage required by system power ICs.The RT8581 is designed to provide a minimum output voltage from a single-cell Li-Ion battery, even when the battery voltage is below the system’s minimum voltage requirement. The RT8581 is available in the WQFN-11L 2.5x2 (FC) package. The recommended junction temperature range spans from -40°C to 125°C, while the ambient temperature range extends from -40°C to 85°C.
Input Voltage Range: 2V to 12V
Output Voltage Range: 4.5V to 12.6V
Up to 94.5% Efficiency at VIN = 5V, VOUT = 12V, and IOUT = 1A
Soft-Start-Up Time (< 2msec)
Adjustable Peak Current Limit: Up to 10A (Typical)
PFM Operation Mode at Light Load
Internal Synchronous Rectifier
Overvoltage Protection at 13.2V
Over-Temperature Protection
WQFN-11L 2.5x2 (FC) Package
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