PRODUCT DATASHEET
AAT2786
SystemPower
TM
Absolute Maximum Ratings
T
A
= 25°C unless otherwise noted.
Symbol
V
IN
V
LX
V
FB
V
N
V
LDOIN
V
ENIN(MAX)
T
J
T
LEAD
1.5A Step-Down Converter and 150mA LDO
Description
VIN, VP to GND
LX Pin to GND
FB Pin to GND
MODE/SYNC, BUCK_EN to GND
VLDOIN to LDO_GND
LDO_EN to LDO_GND
Maximum Junction Operating Temperature
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
6.0
-0.3 to V
IN
+ 0.3
-40 to +150
300
Units
V
°C
Thermal Information
Symbol
P
D
θ
JA
V
LDOIN
Description
Maximum Power Dissipation
1
Thermal Resistance
LDO Input Voltage
Value
2.0
50
+ V
DO
) to 5.5
Units
W
°C/W
V
(V
LDOUT
1. Derate 20mW/ºC above 25°C ambient temperature. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional opera-
tion at conditions other than the operating conditions specified is not implied.
2. Mounted on an FR4 board.
3. To calculate minimum input voltage, use the following equation: V
IN(MIN)
= V
OUT(MAX)
+ V
DO(MAX)
as long as V
IN
≥
2.5V.
2786.2008.04.1.0
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