AAT2557
500mA Battery Charger and 300mA
LDO Regulator for Portable Systems
1
Absolute Maximum Ratings
Symbol
Description
Value
Units
VINLDO
VADP
VEN
VX
VBYP
TJ
Input Voltage to GND
Adapter Voltage to GND
6.0
-0.3 to 7.5
-0.3 to 6.0
V
V
V
V
V
ENLDO, EN_BAT Voltage to GND
BAT, ISET, STAT Voltage to GND
BYP Voltage to GND
Operating Junction Temperature Range
Maximum Soldering Temperature (at leads, 10 sec)
-0.3 to VADP + 0.3
-0.3 to VINLDO + 0.3
-40 to 150
°C
°C
TLEAD
300
Thermal Information
Symbol
Description
Value
Units
PD
θJA
Maximum Power Dissipation
Thermal Resistance
625
160
mW
°C/W
2
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.
2557.2007.06.1.0
3
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
