Battery Charger and Step-Down
Converter for Portable Applications
Absolute Maximum Ratings
1
Symbol
V
IN
V
ADP
V
LX
V
FB
V
EN
V
X
T
J
T
LEAD
AAT2556
Description
Input Voltage to GND
Adapter Voltage to GND
LX to GND
FB to GND
EN_BAT and EN_BUCK to GND
BAT, ISET and STAT to GND
Operating Junction Temperature Range
Maximum Soldering Temperature (at leads, 10 sec)
Value
6.0
-0.3 to 7.5
-0.3 to V
IN
+ 0.3
-0.3 to V
IN
+ 0.3
-0.3 to 6.0
-0.3 to V
ADP
+ 0.3
-40 to 150
300
Units
V
V
V
V
V
V
°C
°C
Thermal Information
Symbol
P
D
θ
JA
Description
Maximum Power Dissipation
Thermal Resistance
2
Value
2.0
50
Units
W
°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.
2556.2006.05.1.0
3
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
