Dynamic path management, external power supply, no lithium battery charging circuit is still the system work up to 2.5A, the conversion efficiency of up to 93%, to meet the needs of the maximum capacity rechargeable lithium battery switching frequency of 3MHz, for the most stringent requirements of the volume under 1-2.2uH inductance without expensive high precision resistors to set the charge current, significant cost savings specifically for different input power (such as adapters and USB) has two charge current setting, there is a more concise periphery dynamic input current sensing, DPPM function to ensure that any front-end power input limit shed, find the maximum input voltage to maintain the current over-temperature cut-off lithium, rechargeable timeout deadline, all necessary performance rechargeable lithium short circuit protection, IC input protection, over temperature protection, charge status indicator and Jacuzzis QFN3 × 3-16 package, accounting board is small, peripheral most simple switching charger IC Xiangxi more information, please contact Miss Long: 18565879459