1 DESCRIPTION 

The ZCC5145 is a monolithic, step-down, switch- mode converter with a built-in power MOSFET. It achieves a 0.6A peak-output current over a wide input supply range with excellent load and line regulation. Current-mode operation provides a fast transient response and eases loop stabilization. Fault condition protections include cycle-by-cycle current limiting and thermal shutdown. The ZCC5145 requires a minimal number of readily-available external components. The ZCC5145 is available in a TSOT23-6 package. 

2 FEATURES

 0.6A Peak Output Current  0.6Ω Internal Power MOSFET  Capable to Start Up with Big Output Capacitor  Stable with Low-ESR Ceramic Output Capacitors  Up to 94% Efficiency  Fixed 1.2MHz Frequency  Cycle-by-Cycle Over-Current Protection  Wide 4.2V-to-45V Operating Input Range  Output Adjustable from 4.5V to 0.94xVIN  Available in a SOT23-6 Package

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