The NCP1597A family is a fixed 1 MHz frequency, high-output-current, synchronous PWM converter that integrate low-resistance, high-side P-channel MOSFETs and low-side N-channel MOSFETs. The NCP1597A utilizes current mode control to provide fast transient response and excellent loop stability and supports PFM mode at light load for higher efficiency. It regulates input voltages from 4.0 V to 5.5 V down to an output voltage as low as 0.8 V and is able to supply up to 2.0 A.
Input voltage range from 4.0 V to 5.5 V Internal 140m / 90m MOSFETs Fixed 1 MHz Switching Frequency Hiccup Mode Short-Circuit Protection Thermal Shutdown Protection Adjustable Output Voltage Down to 0.8 V PFM Mode at Light Load Typical +5V applications High efficiency at full load Reduced output filter component size and value Reduced heat during short circuit Prevents overheating in the application Ability to regulate low output voltages Increased efficiency at light load versus fixed PWM