The LM5123-Q1 device is a wide input range synchronous boost controller that employs peak current-mode control. The device features a low shutdown I_Q and a low I_Q sleep mode, which minimizes battery drain at no and light load condition. The device also supports an ultra-low I_Q deep-sleep mode with bypass operation, which eliminates the need for an external bypass switch when the supply voltage is greater than the boost output regulation target. The output voltage can be dynamically programmed by using the tracking function.