DC1334A - Schematic9/24/2009
Demonstration Circuit DC1334A is a switching power manager that features a high-efficiency bidirectional PowerPath switching regulator for USB On-the-Go, a controller for an external high voltage step-down switching regulator, a 1A battery charger (4.2V VFLOAT), an ideal diode, an always-on LDO, an overvoltage protection circuit and three general purpose synchronous step-down switching regulators. The three DC/DC converters provide 1.9V to 3.6V @ 400mA, 1.8V to 3.4V @ 400mA and 1V to 1.8V @ 1A.
The DC1334A Demo Circuit can be controlled from a software GUI. Most of the features of the LTC3576EUFE are only accessible via its I2C port.