800mA Voltage-Scaling Step-Down Converter
Absolute Maximum Ratings
1
Symbol
V
IN
, PV
IN
V
LX
V
FB
V
SDA/SCL
V
MODE/SYNC
, V
EN/SET
T
J
T
LEAD
AAT1142
Description
Input Voltage and Input Power to GND
LX to GND
FB to GND
SDA/SCL to GND
MODE/SYNC and EN/SET to GND
Operating Junction Temperature Range
Maximum Soldering Temperature (at leads, 10 sec)
Value
6.0
-0.3 to V
IN
+ 0.3
-0.3 to V
IN
+ 0.3
-0.3 to 6.0
-0.3 to 6.0
-40 to 150
300
Units
V
V
V
V
V
°C
°C
Thermal Information
2
Symbol
P
D
θ
JA
Description
Maximum Power Dissipation
Thermal Resistance
TSOPJW-12
3
TDFN33-12
4
TSOPJW-12
TDFN33-12
Value
625
2.0
160
50
Units
mW
W
°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 ]
