202182A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 24, 2012
3
DATA SHEET
AAT2603
Total Power Solution for Portable Applications
Pin Configuration
TQFN44-28
(Top View)
ENB1
SELB2
LX1
PGND1
INB1
INB2
PGND2
LX2
ENB2
FBB2
ENL3
AGND
FBL3
OUTL3
28
1
2
3
4
5
6
7
8
9
10
11
12
13
14
27
26
25
24
23
22
21
20
EP
19
18
17
16
15
FBB1
AIN
ENL2
FBL2
OUTL2
INL12
OUTL1
FBL1
ENL1
BYP
ENL4
FBL4
OUTL4
INL34
Part Number Descriptions
Output Voltage
1
Part Number
AAT2603INJ-1-T1
AAT2603INJ-2-T1
AAT2603INJ-3-T1
DC-DC1 (Buck1)
Ext. Adj. (V
FBB1
= 600mV)
3.3V
Ext. Adj. (V
FBB1
= 600mV)
DC-DC2 (Buck2)
(SELB2 = Low)
Ext. Adj. (V
FBB2
= 600mV)
1.3V
1.0V
DC-DC2 (Buck2)
(SELB2 = High)
Ext. Adj. (V
FBB2
= 775mV)
1.0V
1.3V
LDOs 1-4
Ext. Adj. (V
FBLX
= 1.2V)
Ext. Adj. (V
FBLX
= 1.2V)
Ext. Adj. (V
FBLX
= 1.2V)
Absolute Maximum Ratings
1
T
A
= 25°C unless otherwise noted.
Symbol
Description
INBX, INLXX, AIN to AGND
ENBX, ENLX, FBBX, FBLX, BYP to AGND
LX1 to PGND1
LX2 to PGND2
PGNDX to AGND, PGND1 to PGND2
Operating Temperature Range
Storage Temperature Range
Maximum Soldering Temperature (at leads, 10 sec)
Value
-0.3 to 6.0
-0.3 to V
AIN
+0.3
-0.3 to V
INB1
+0.3
-0.3 to V
INB2
+0.3
-0.3 to 0.3
-40 to 150
-65 to 150
300
Units
V
V
V
V
V
°C
°C
°C
Recommended Operating Conditions
Symbol
θ
JA
P
D
Description
Thermal Resistance
Maximum Power Dissipation
Value
50
Units
°C/W
W
2
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.
202182A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 24, 2012
DATA SHEET
AAT2603
Total Power Solution for Portable Applications
Electrical Characteristics
1
V
AIN
= V
INB1
= V
INB2
= V
INL12
= V
INL34
= 3.6V, C
BYP
= 10nF, T
A
= -40°C to 85°C, unless noted otherwise. Typical values are
at T
A
= 25°C.
Symbol
Description
Conditions
Min
2.7
V
ENB1
= V
ENL3
= 3.6V, No Load , V
FBB1
= V
FBL3
= 3.6V
V
ENx
= AGND
V
IN
rising
V
IN
falling
Hysteresis
100
Typ
Max
5.5
200
1.0
2.6
Units
V
µA
µA
V
V
mV
MHz
µs
V
%
%
%
%
%/V
µA
µA
A
mΩ
mΩ
µs
V
%
%
%
%
%/V
µA
µA
A
mΩ
mΩ
µs
Power Supply
V
IN
Input Voltage Range
I
Q
Quiescent Current
I
SHDN
Input Shutdown Current
UVLO
Under-Voltage Lockout
1.8
250
1.5
200
0.6
-1.5
-2.5
-3.0
0.4
0.2
1.0
1.0
1.7
145
200
200
0.6
-1.5
-2.5
-3.0
0.2
0.2
1.0
1.0
1.3
230
180
200
V
INB2
+1.5
+2.5
+3.0
V
INB1
+1.5
+2.5
+3.0
F
OSC
Oscillator Frequency
t
S,BYP
Bypass Filter Startup Time
V
ENB1
= 3.6V
DC-DC1 (Buck1): 1.2A Step-Down Converter
V
OUT_RANGE
Output Voltage Range
T
A
= 25°C, 20mA Load
V
OUT_ACC
Output Voltage Accuracy
T
A
= -40°C to 85°C, 20mA Load
V
OUT_TOL
Output Voltage Tolerance
0A to 1.2A Load; V
IN
= 2.7V to 5.5V
ΔV
OUT
/ΔI
OUT
Load Regulation
0A to 1.2A Load
ΔV
OUT
/ΔV
IN
Line Regulation
V
IN
= 2.7V to 5.5V
I
SHDN
Shutdown Current
V
ENB1
= GND
I
LX_LEAK
LX Leakage Current
V
INB1
= 5.5V, V
LX1
= 0V to V
INB1
, EN
B1
= Low
I
LIM
P-Channel Current Limit
R
DS(ON)H
High Side Switch On-Resistance
R
DS(ON)L
Low Side Switch On-Resistance
t
S
Start-Up Time
Enable to Output Regulation
DC-DC2 (Buck2): 600mA Step-Down Converter
V
OUT_RANGE
Output Voltage Range
T
A
= 25°C, 20mA Load
V
OUT_ACC
Output Voltage Accuracy
T
A
= - 40°C to 85°C, 20mA Load
V
OUT_TOL
Output Voltage Tolerance
0mA to 600mA Load; V
IN
= 2.7V to 5.5V
ΔV
OUT
/ΔI
OUT
Load Regulation
0mA to 600mA Load
ΔV
OUT
/ΔV
IN
Line Regulation
V
IN
= 2.7V to 5.5V
I
SHDN
Shutdown Current
V
ENB2
= GND
I
LX_LEAK
LX Leakage Current
V
INB2
= 5.5V, V
LX2
= 0 to V
INB2
, EN
B2
= Low
I
LIM
P-Channel Current Limit
R
DS(ON)H
High Side Switch On-Resistance
R
DS(ON)L
Low Side Switch On-Resistance
t
S
Start-Up Time
Enable to Output Regulation
1. The AAT2603 is guaranteed to meet performance specification from -40°C to +85°C and is assured by design, characterization and correlation with statistical process controls.
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