The ATI2202 is a 340 kHz fixed frequency PWM synchronous step-down DC/DC converter. The ATI2202 is operated from 4.75V to 18V, the generated output is adjustable from 0.923V to 0.9Vin, and the output current can be up to 2A.http://www.analogtechnologies.com/document/ATI2202.pdf

1. Input Voltage Range: 4.75V ~ 18V

2. Output Voltage Adjustable Range: 0.923V ~ 0.9Vin

3. Output Current up to 2A

4. Efficiency up to 93%

5. Programmable Soft Start

6. Over Current Protection

7. Over Temperature Protection

8. RoHS Compliant and 100% Lead (Pb) Free

9. Fixed Frequency: 340 kHz

http://www.analogtechnologies.com/Step-Down_DC-DC_Converters.html