3

AAT1149B

2.2MHz FastTransient 400mA Step-Down Converter

DATA SHEET

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

201989B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 18, 2013

Symbol

Description

Value

Units

Input Voltage to GND

6.0

V

LX to GND

V

FB to GND

V

EN to GND

-0.3 to 6.0

V

Operating Junction Temperature Range

-40 to 150

°C

Maximum Soldering Temperature (at leads, 10 sec)

300

°C

Thermal Information

Symbol

Description

Value

Units

352

mW

284

°C/W

1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at conditions other than the operating conditions

specified is not implied. Only one Absolute Maximum Rating should be applied at any one time.

2. Mounted on an FR4 board; use the NSMD (none-solder mask defined) pad style for tighter control on the copper etch process.

3. Derate 3.52 mW/°C above 25°C.