AX3682-24V 650KHz 2A Fast-PWM Synchronous Step-Down DC/DC Converter

GENERAL DESCRIPTION
The AX3682 is a fully integrated high efficiency synchronous step-down converter which requires minimum number of external components. It offers very compact solution with up to 2A continuous output current over a wide input range.
The AX3682 employs proprietary Constant On-Time (COT) control scheme providing superior transient response and maintaining constant switching frequency under the continuous condition mode operation. The internal ramp compensation network allows stable operation with ultra-low equivalent series resistor (ESR) output ceramic capacitors without using external compensation network. An error amplifier in the control loop provides excellent line and load regulation.
The AX3682 integrates extensive protection functions include: UVLO, OCP, UVP and thermal shutdown. The converter is available in a small 6pin SOT23 package.

 FEATURES
- Input Voltage Range from 4.3V to 24V
- 28V Input Transient Tolerance
- Output Voltage Adjustable from 0.6V to 24V
- 2A continuous output current
- Support 100% duty cycle Low Dropout Operation
- Stable operation with output low ESR ceramic capacitors
- Fast PWM COT control with superior transient performance
- 650KHz Switching frequency
- Internal 800us Soft-Start
- Integrated 110mΩ and 80mΩ HS/LS Switches
- Accurate EN UVLO threshold
- High Efficiency Operation at light load 
- Thermal Shutdown with Auto recovery
- Hiccup mode at short circuit protection
- Available in a 6-pin SOT23 Package

 APPLICATION
-.Laptop Computer
-.Tablet PC
-.Networking Systems
-.Personal Video Recorders
-  Flat Panel Television and Monitors
-  Distributed Power Systems