AAT1149

3MHz Fast Transient 400mA Step-Down Converter

PRODUCT DATASHEET

1149.2008.08.1.3

3

www .analogictech.com

AAT1149

3MHz Fast Transient 400mA Step-Down Converter

PRODUCT DATASHEET

1149.2008.08.1.3

3

www .analogictech.com

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

Maximum Power Dissipation

625

mW

352

SC70JW-8

160

°C/W

WLCSP-5

284

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; for the WLCSP package, use the NSMD (none-solder mask defined) pad style for tighter control on the copper etch process.

3. Derate 6.25mW/°C above 25°C.

4. Derate 3.52 mW/°C above 25°C.