IT7833

M3TEK IT7833 5V/3A High Efficiency Step-Down DC/DC Converter Description The IT7833 is a low-input voltage and high-output current synchronous-buck PWM converter and integrates with all required active components. Its’ operating input voltage ranges from 2.7V to 6V and output voltage ranges from VIN down to 0.8V. The switching frequency is adjustable ranging from 300kHz to 1.4MHz. High performance and externally compensation voltage error amplifier provides design flexibility and high performance under transient. In addition, it provides internal soft-start to reduce inrush-current, current-limit and thermal shutdown, preventing IC from being damaged. Features 2.7V to 6V Input Voltage Range 3A Output Current Typical Quiescent Current: 0.65mA 300kHz to 1.4MHz Adjustable Frequency Operation 0.8V to VIN Adjustable Output Voltage 100% Duty Cycle for Lowest Dropout 0% Duty Cycle Enable Internal Pull-High External Compensation Internal Soft-Start Thermal Shutdown Current-Limit and Short-Circuit Protection SOP 8L-EP Package RoHS Compliant (100% Green Available) Applications ASIC/DSP/µP/FPGA Core and I/O Voltages Networking and Telecommunications TV Typical Applications Figure 1. Typical Application Circuit Efficiency(% ) Efficiency vs. Output Current at VIN=5V 100 90 80 70 60 50 40 30 20 10 0 0 500 1000 1500 2000 2500 3000 Output Current (mA) Rev. 0.2.1 www.m3tekic.com M3tekic Confidential 1 ...