CXLB74214 is a multifunctional power management SOC with integrated boost converter, lithium battery charge management, and battery level indication, providing a complete backup power solution for Bluetooth headsets. The high integration and rich functions of the CXLB74214 make it require only a few peripheral devices in application, and effectively reduce the size of the overall solution and reduce the BOM cost. CXLB74214 only one inductor to achieve buck and boost function. The DC-DC converter operates at 500KHz and can support low-cost inductors and capacitors. The CXLB74214 synchronous boost system provides more than 1A output current with a high conversion efficiency of 93%. When no load, automatically enter the standby state, the static current is less than 20uA, the standby state output still has the same battery voltage drive 50K resistor voltage holding function. The CXLB74214 adopts switching charging technology, providing more than 320mA, and the charging efficiency is as high as 92%. Built-in IC temperature and input voltage intelligent regulation of charging current
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[ CXLB74214 ]"
