PRODUCT DATASHEET
AAT2688
TM
SystemPower
4.5A PMIC Solution for 12V Adapter Systems with 2-Output High Performance Step-Down Converters
Pin Configuration
TQFN45-24
(Top View)
1
2
3
4
5
6
7
19
18
17
16
LX1
LX1
VL1
VL1
N/C
GND1
FB1
EP
N/C
15
14
13
BST1
EN1
COMP1
OS1
RS1
GND2
Absolute Maximum Ratings1
Symbol
Description
Value
Units
VIN(HI)
VIN(LO)
VBST1-LX1
VCONTROL
VEN2
IN1, EN1, LX1 to GND
IN2, VL1 to GND
BST1 to LX1
FB1, COMP1, RS1, OS1, OUT2, DL1 to GND
EN2 to GND
-0.3 to 30.0
-0.3 to 6.0
-0.3 to 6.0
V
V
V
V
V
-0.3 to VIN(LO) + 0.3
-0.3 to VIN2 + 0.3
-40 to 150
TJ
TLEAD
Operating Junction Temperature Range
Maximum Soldering Temperature (at leads, 10 sec)
°C
°C
300
Thermal Information
Symbol
Description
Maximum Power Dissipation2
Thermal Resistance3
Value
Units
PD
ΘJA
3.0
33
W
°C/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 ground plane.
3. Derate 30mW/°C above 25°C ambient temperature.
w w w . a n a l o g i c t e c h . c o m
2688.2008.06.1.0
3
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