Variable frequency boundary mode switching maximizes efficiency across a wide range of input voltages. Low ripple Burst Mode operation enables high-efficiency operation down to very low output currents while keeping the output ripple below 5mV. The soft-start feature controls the ramp rate of the output voltage, eliminating input current surge during start-up while providing output tracking. A power good flag signals when the output voltage is within ±7.5% of the regulated output. Under voltage lockout can be programmed using the EN/UV pin. Shutdown mode reduces the total quiescent current to <5µA.