PRODUCT DATASHEET
AAT1231
SwitchReg
TM
Step-Up DC/DC Converters for White LED Backlight Applications
Part Number Descriptions
SEL Polarity
Part Number
AAT1231ITP
AAT1231ITP-1
HIGH
0.3V
≤
V
FB
≤
0.6V
0.6V
≥
V
FB
≥
0.3V
LOW
0.1V
≤
V
FB
≤
0.4V
0.4V
≥
V
FB
≥
0.1V
S
2
Cwire Feedback Voltage Programming
See Table 2
See Table 3
Absolute Maximum Ratings
1
T
A
= 25°C unless otherwise noted.
Symbol
PVIN, VIN
SW
LIN, EN/SET, SEL, FB
T
J
T
S
T
LEAD
Description
Input Voltage
Switching Node
Maximum Rating
Operating Temperature Range
Storage Temperature Range
Maximum Soldering Temperature (at leads, 10 sec)
Value
-0.3 to 6.0
28
V
IN
+ 0.3
-40 to 150
-65 to 150
300
Units
V
V
V
°C
°C
°C
Thermal Information
Symbol
θ
JA
P
D
Description
Thermal Resistance
Maximum Power Dissipation
Value
160
625
Units
°C/W
mW
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.
1231.2008.06.1.5
www.analogictech.com
3