RT9912A

RT9912A Multi-Channel Power Management IC for Portable Device General Description The RT9912A is a multi-channel power management IC providing power conversion and system power management functions for one or two alkaline battery powered portable handheld device. The RT9912A integrates one high efficiency synchronous buck regulator, one high efficiency boost regulator, one linear regulator and one adjustable voltage detector for reset function. Features z z z z z z z z z 300mA Sync. Step Down Converter for VCORE 300mA Sync. Step Up Converter for IO and Memory High Efficiency Up to 92% Low Dropout Linear Regulator Adjustable Voltage Detector for Reset Function Current Limit Protection Thermal Shutdown Protection Low Operation Current Consumption Small 24-Lead WQFN Package RoHS Compliant and Halogen Free Ordering Information RT9912A Package Type QW : WQFN-24L 4x4 (W-Type) Lead Plating System G : Green (Halogen Free and Pb Free) Note : Richtek products are : ` z Applications z z z DSC Portable Multimedia Player GPS Pin Configurations (TOP VIEW) PGND1 VOUT1 VBAT GND 19 18 17 16 RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. 24 23 22 21 20 Marking Information For marking information, contact our sales representative directly or through a Richtek distributor located in your area. VDD1 FB1 ENSW PSW NC ENBST CT ` LX1 1 2 3 4 5 6 7 8 9 10 11 25 12 FB4 VDD4 RESET ENBUK VDD3...