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PRODUCT DATASHEET
AAT2158
Units
V
V
V
V
°C
SwitchReg
TM
Absolute Maximum Ratings
1
Symbol
V
CC
, V
P
V
LX
V
FB
V
EN
T
J
1.5A Low Noise Step-Down Converter
Description
V
CC
, V
P
to GND
LX to GND
FB to GND
EN to GND
Operating Junction Temperature Range
Value
6
-0.3 to V
P
+ 0.3
-0.3 to V
CC
+ 0.3
-0.3 to -6
-40 to150
Thermal Characteristics
Symbol
q
JA
q
JC
P
D
Description
Maximum Thermal Resistance
Maximum Thermal Resistance
Maximum Power Dissipation (T
A
= 25°C)
2, 3
Value
50
4.2
2.0
Units
°C/W
°C/W
W
Recommended Operating Conditions
Symbol
T
A
Description
Ambient Temperature Range
Value
-40 to 85
Units
°C
1. Stresses above those listed in Absolute Maximum Ratings may cause 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 a demo board (FR4, in still air). Exposed pad must be mounted to PCB.
3. Derate 20mW/°C above 25°C.
2158.2008.10.1.5
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