3.3V Automotive Step-Down Regulator – Low-Iq

This is a Dual Mode regulator intended for Automotive, battery-connected applications that operate with up to a 36V input supply. Depending on the output load, it operates either as a PWM Buck Converter or as a Low Drop-Out Linear Regulator, and is suitable for systems with low noise and Low Quiescent Current requirements often encountered in automotive driver information systems. The project consists of NCV891330 chip which provides several protection features expected in automotive power supply systems such as current limit, short circuit protection, and thermal shutdown. In addition, the high switching frequency produces low output voltage ripple. Operating power supply range 3.7V to 36V. Output voltage 3.3V load current up to 3A. Operating frequency 2MHz.