Robust switching regulators increase flexibility, reduce external components

The NCP3064 switching regulator from ON Semiconductor operates at 150kHz to enable a smaller output capacitor and inductor, and also accepts inputs up to 40V to address a wide range of applications.

Several integrated features identify the NCP3064 as a convenient and robust regulator for demanding applications. These include an internal temperaturecompensated reference, a comparator, a controlled-duty-cycle oscillator with active current-limit circuit, an integrated driver and a high-current output switch. In addition, an internal thermal shutdown with hysteresis prevents catastrophic failures in the event of accidental device overheating.

The NCP3064 is optimised for use in step-down, step-up and voltage-inverting applications with a minimum number of external components. A gated oscillator is implemented on-chip to regulate the output voltage, which eliminates the need for dominantpole loop compensation to maintain converter stability.

There is also an On/Off feature that puts the device into a low-power standby state. This reduces current draw to below 100µA to help designers meet energy-saving initiatives such as the EU Energy-using Products (EuP) directive.

 

FEATURES Logic-level shutdown capability Output-switch current to 1.5A Adjustable output-voltage range Precision 2% reference NCV3064 for automotive applications

APPLICATIONS Industrial networks Machine-control units High-power LED lighting Battery chargers Automotive systems

 

 

ON Semi / NCP3064