• High Efficiency：Up to 95% 

• 1.5MHz Constant Switching Frequency 

• 0.8A Available Load Current 

• 2.5V to 6.5V Input Voltage Range

• Output Voltage as low as 0.6V 

• 100% Duty Cycle In Dropout 

• Current Mode Control 

• Short Circuit Protection 

• Over Temperature Protection 

• <1μA Shutdown Current

The AS1310 contains two independent 1.5MHz constant frequency current mode PWM step-down converters. Each converter integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. The AS1310 is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) battery. Each converter can supply 800mA of load current from a 2.5V to 6.5V input voltage. The output voltage for can be regulated as low as 0.6V. 

The AS1310 can also run at 100% duty cycle for low dropout applications. The AS1310 is available in a low profile (1mm) 10-pin, TDFN package.