AAT1149 View Datasheet(PDF) - Advanced Analogic Technologies
Part Name
Description
MFG CO.
'AAT1149' PDF : 21 Pages View PDF
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PRODUCT DATASHEET
AAT1149
3MHz Fast Transient 400mA Step-Down Converter
Absolute Maximum Ratings1
Symbol
VIN
VLX
VFB
VEN
TJ
TLEAD
Description
Input Voltage to GND
LX to GND
FB to GND
EN to GND
Operating Junction Temperature Range
Maximum Soldering Temperature (at leads, 10 sec)
Value
6.0
-0.3 to VIN + 0.3
-0.3 to VIN + 0.3
-0.3 to 6.0
-40 to 150
300
Units
V
V
V
V
°C
°C
Thermal Information
Symbol
PD
Description
Maximum Power Dissipation
θJA
Thermal Resistance2
SC70JW-82, 3
WLCSP-52, 4
SC70JW-8
WLCSP-5
Value
625
352
160
284
Units
mW
°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; 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.
1149.2008.08.1.3
www.analogictech.com
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