AAT2556
Battery Charger and Step-Down
Converter for Portable Applications
Absolute Maximum Ratings1
Symbol
Description
Value
Units
VIN
VADP
VLX
VFB
VEN
VX
Input Voltage to GND
6.0
V
V
Adapter Voltage to GND
-0.3 to 7.5
LX to GND
-0.3 to VIN + 0.3
-0.3 to VIN + 0.3
-0.3 to 6.0
V
FB to GND
V
EN_BAT and EN_BUCK to GND
BAT, ISET and STAT to GND
Operating Junction Temperature Range
Maximum Soldering Temperature (at leads, 10 sec)
V
-0.3 to VADP + 0.3
-40 to 150
V
TJ
°C
°C
TLEAD
300
Thermal Information
Symbol
Description
Value
Units
PD
Maximum Power Dissipation
Thermal Resistance2
2.0
50
W
θJA
°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.
2556.2006.09.1.2
3
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
