AP3406KT-ADJTRG1

Data Sheet 1.1MHz, 650mA SYNCHRONOUS DC-DC BUCK CONVERTER AP3406 General Description The AP3406 is a 1.1MHz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 650mA load with high efficiency, excellent line and load regulation. The device integrates a main switch and a synchronous switch without an external Schottky diode. It is ideal for powering portable equipment that runs from a single Li-ion battery. A standard series of inductors are available from several different manufacturers optimized for use with the AP3406. This feature greatly simplifies the design of switch-mode power supplies. This IC is available in TSOT-23-5 and SOT-23-5 packages. Features • • • • • • • • • • High Efficiency: up to 95% Output Current: 650mA Input Voltage Range: 2.5V to 5.5V Fixed 1.1MHz Frequency Current Mode Control 100% Duty Cycle in Dropout Built-in Short Circuit Protection Built-in Thermal Shutdown Function Built-in Current Limit Function Shutdown Current: