APW8855

APW8855 High Current, High Frequency 7 Outputs Voltage Regulator and Power Management IC for High Performance Tablet and Ultra Notebook Applica- 1.General Description 3.Features tions The APW8855 is a Power Management IC (PMIC) designed to provide 7 Voltage regulators for AMD’s Stoney Ridge APU with ability to communicate via an I2C interface. The IC operates from a wide input voltage of 5.5V to 20V. There are 5 Switching Buck regulators and 2 low power LDOs that are all controlled and sequenced via the serial interface. The Buck PWM regulators consists of 3 switching controller driving external power stage such as APW8703 which is capable of supplying up to 8A supply, 2 single phase switching regulators supplying up to 3A supply. The IC is equipped with all the standard protection features such as over current, over voltage and internal under voltage lock out protection. The serial interface is an I2C communication interface which allows supply sequencing as well as controlled supply ramp up and ramp down of all supplies except for the always on 1.5V LDO supplying to RTC load. The IC is offered in TQFN4x4-32A package. 2.Applications High Performance Tablet PCs Ultra Notebook PCs Netbook PCs High Performance Digital Signage Medical Devices Smart phones Voltage Rail Provide 3 Buck PWM Controllers with High Accuracy over Temperature -VR1 provides 5V, 4A continuous output current. -VR2 provides 3.3V, 8A continuous output current. -VR5 provides 0.95V, 8A cont...