AAT1142
800mA Voltage-Scaling Step-Down Converter
Absolute Maximum Ratings1
Symbol
Description
Value
Units
VIN, PVIN
Input Voltage and Input Power to GND
LX to GND
6.0
V
V
VLX
-0.3 to VIN + 0.3
-0.3 to VIN + 0.3
-0.3 to 6.0
-0.3 to 6.0
-40 to 150
300
VFB
VSDA/SCL
VMODE/SYNC, VEN/SET
TJ
FB to GND
V
SDA/SCL to GND
V
MODE/SYNC and EN/SET to GND
Operating Junction Temperature Range
Maximum Soldering Temperature (at leads, 10 sec)
V
°C
°C
TLEAD
Thermal Information2
Symbol
Description
Value
Units
TSOPJW-123
TDFN33-124
TSOPJW-12
TDFN33-12
625
2.0
160
50
mW
W
PD
Maximum Power Dissipation
Thermal Resistance
θJA
°C/W
1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at condi-
tions 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.
3. Derate 6.25mW/°C above 25°C.
4. Derate 20mW/°C above 25°C.
1142.2006.07.1.0
3
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
