PRODUCT DATASHEET
AAT1
189
SwitchReg
TM
Absolute Maximum Ratings
1
Symbol
V
IN(HI)
V
IN(LO)
V
BST1-LX
V
CONTROL
V
EN
I
IN(PULSED)
T
J
T
LEAD
High Voltage Step-Down Regulator
Description
IN, LX to GND
VL to GND
BST to LX
FB, COMP, OS, RS to GND
EN to GND
IN to LX
Operating Junction Temperature Range
Maximum Soldering Temperature (at leads, 10 sec)
Value
-0.3 to 30.0
-0.3 to 6.0
-0.3 to 6.0
-0.3 to V
IN(LO)
+ 0.3
-0.3 to 6.0
12.0
-40 to 150
300
Units
V
V
V
V
V
A
°C
°C
Thermal Information
Symbol
Θ
JA
P
D
Description
Thermal Resistance
2
Maximum Power Dissipation
3
Value
50
2.0
Units
C/W
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 with exposed paddle connected to single layer PCB plane.
3. Derate 20mW/°C above 25°C ambient temperature for TDFN34-16 package. Increased power dissipation is possible with additional PCB heatsinking.
1189.2008.06.1.0
www.analogictech.com
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