AT7174

AT7174 1.25MHz, 4A, High Efficiency PWM Step-Down DC/DC Converter FEATURES Immense Advance Tech. DESCRIPTION 2.7V to 5.5V Input Voltage Range All Ceramic Capacitor Design High Efficiency：Up to 95% 1.25MHz Constant Switching Frequency 4A Available Load Current 100% Duty Cycle Low Dropout Operation Current Mode Control Short Circuit Protection Thermal Fault Protection Compact package: TDFN3X3 -10L APPLICATION Set Top Box Microprocessor care supply LCD TV Access-Point Router Network Cards Mini-notebook PC Tablet PC The AT7174 is a 4A synchronous step-down regulator designed to operate with an input voltage range of 2.7V to 5.5V. The device requires only three external filter components for a complete a step down regulator solution. The internal switch and synchronous rectifier are integrated for high efficiency. The switching frequency is set at 1.25MHz, allowing the use of the small surface mount inductors and capacitors. It can run 100% duty cycle for low dropout application. The ...