MAX8649A

19-4504; Rev 4; 6/11 EVAALVUAAILTAIOBNLEKIT 1.8A Step-Down Regulator with Remote Sense in 2mm x 2mm WLP MAX8649/MAX8649A General Description The MAX8649/MAX8649A high-efficiency DC-to-DC stepdown switching regulators deliver up to 1.8A of output current. The device operates from a 2.5V to 5.5V input voltage range, making it future proof for next-generation battery technologies. The output voltage is I2C programmable from 0.75V to 1.38V. Remote sense ensures precise DC regulation at the load. Total output error is less than 2% over load, line, and temperature. The ICs operate at a 3.25MHz fixed frequency. The high operating frequency minimizes the size of external components. The switching frequency of the converter can be synchronized to the master clock of the application. When synchronizing to an external clock, the ICs measure the frequency of the external clock to ensure that the clock is stable before changing the switching frequency to the external clock frequency. An on-board...