Features
■20-µA Quiescent current in regulation■Input voltage range: 4V-60V■Output voltage range: 1V-VIN■Integrated upper and lower power MOSFETmaximum current: 5A■Adjustable frequency range: 200KHz~2MHz■Automatic switching of CCM/DCM/PFM mode■Adjustable soft-start time and Output voltagetracking capability■Automatically switched bypass linear powersupply■Provides ultra-low input and output dropoutvoltage close to 100% duty cycle■Internal Compensation■Power-good flag■Dynamic Frequency Stretch Technology■Support large capacitive load start-up■Protection function: UVLO/OCP/SCP/OTP/OVP■Operating junction temperature range: -40℃ to+125℃■All pins have ±2000V (HBM) ESD protection■ETSSOP 16-Pin Exposed Pad PackageApplications■Industrial power supply■Wide voltage input range power supply■Low ripple low noise power supply■Automotive electronic power supplyFigure. 1 Typical Application CircuitDescriptionZCC5160 is a step-down DC/DC regulator with aninternal switch, featuring SKIP control mode, whichcombines low quiescent current with high switchingfrequency to achieve high-efficiency regulation over awide range of load currents. SKIP mode uses a short"burst" cycle to switch the inductor current throughthe internal power MOSFET, followed by a sleepcycle in which the power switch is turned off and theload current is provided by the output capacitor. Atlight loads, burst cycles are a small fraction of thetotal cycle time, minimizing average supply currentand greatly improving efficiency at light loads.ZCC5160 has a wide input voltage range of 4V-60V,thus minimizing the need for external surgesuppression components. Making it the best choicefor wide input power range industrial and high cellcount battery pack applications. ZCC5160 is ideal foruse in the 48V automotive power bus range.ZCC5160 features low-value 100mΩ high-side and80mΩ low-side MOSFET that provide at least 3Aoutput current capability with excellent load and linetransient response.Additional features include: soft-start, thermalshutdown, UVLO undervoltage lockout, gate driverundervoltage lockout, maximum duty cycle limit timer,and current limit shutdown timer. It also integratesoutput short-circuit protection, providing HICCUPmode when the FB voltage is low to avoidoverheating during short-circuit.
