202016B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. •
March 19, 2013
DATA SHEET
AAT2503
Adjustable Three-Channel Regulator
Pin Configuration
QFN34-20
(Top View)
OUTA
VLDOA
VLDOB
OUTB
20
19
18
17
FBB
ENA
ENB
MODE/SYNC
FB
AGND
1
2
3
4
5
6
10
9
7
8
16
15
14
13
12
11
FBA
POK
EN
VIN
N/C
N/C
VP
LX
LX
PGND
Absolute Maximum Ratings
1
Symbol
V
P
, V
IN
, V
LDO
V
LX
V
FB
V
N
T
J
T
LEAD
Description
Input Voltage and Bias Power to GND
LX to GND
FB to GND
EN, MODE/SYNC to GND
Operating Junction Temperature Range
Maximum Soldering Temperature (at leads, 10 sec)
Value
6.0
-0.3 to V
P
+ 0.3
-0.3 to V
P
+ 0.3
-0.3 to 6.0
-40 to 150
300
Units
V
V
V
V
°C
°C
Thermal Information
Symbol
P
D
JA
Description
Maximum Power Dissipation (T
A
= 25°C)
Thermal Resistance
2
Value
2.0
50
Units
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.
202016B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. •
March 19, 2013
3
DATA SHEET
AAT2503
Adjustable Three-Channel Regulator
Electrical Characteristics
1
V
IN
= 3.6V; T
A
= -40°C to +85°C, unless otherwise noted. Typical values are T
A
= 25°C.
Symbol
Description
Conditions
ENA = ENB = EN = V
IN
; I
LOAD
= 0
ENA = ENB = EN = GND
1.62
-1.5
-2.5
0.593
Min
Typ
85
Max
145
1.0
5.5
1.5
2.5
0.607
150
0.09
0.6
Units
μA
μA
V
%
V
mV
%/V
V
V
mA
μA
°C
°C
% of V
OUT
% of V
OUT
V
μA
Bias Power Supply
I
Q
Quiescent Current
I
SHDN
Shutdown Current
LDOA, LDOB; I
OUT
= 150mA
V
LDO
Input Voltage
V
OUT
V
FB
V
DO
V
OUT
/
V
OUT
*V
IN
V
EN(L)
V
EN(H)
I
OUT
I
SHT
T
SD
T
HYS
LDOA; I
OUT
V
POK
V
POKHYS
V
POK(LO)
I
POK
Output Voltage Tolerance
Feedback Voltage
Dropout Voltage
2
Line Regulation
3
Enable Threshold Low
Enable Threshold High
Output Current
Shutdown Current
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
= 150mA
Power-OK Trip Threshold
Power-OK Hysteresis
Power-OK Output Voltage Low
Power-OK Output Leakage Current
I
OUT
= 1mA
to 150mA
T
A
= 25°C
T
A
= -40°C to +85°C
0.6
I
OUT
= 150mA
V
IN
= V
OUT
+ 1 to 5.0V
1.4
150
V
IN
= 5V
140
15
V
OUT
Rising, T
A
= 25°C
I
SINK
= 1mA
V
POK
<5.5V, V
OUT
in Regulation
80
90
1.0
1.0
98
0.4
1.0
1. The AAT2503 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
202016B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. •
March 19, 2013
DATA SHEET
AAT2503
Adjustable Three-Channel Regulator
Electrical Characteristics (continued)
1
V
IN
= 3.6V; T
A
= -40°C to +85°C, unless otherwise noted. Typical values are T
A
= 25°C.
Symbol
V
IN
UVLO
V
OUT
V
OUT
V
FB
I
SHDN
I
LX_LEAK
I
FB
I
LIM
R
DS(ON)H
R
DS(ON)L
V
OUT
/V
OUT
V
OUT
/
V
OUT
*V
IN
F
OSC
T
SD
T
HYS
V
EN(L)
V
EN(H)
I
EN
V
MODE/SYNC(L)
V
MODE/SYNC(H)
I
MODE/SYNC
Description
Input Voltage
Under-Voltage Lockout Voltage
Output Voltage Tolerance
V
OUT
Programmable Range
Feedback Threshold Voltage
Shutdown Current
LX Leakage Current
Feedback Leakage
Current Limit
High Side Switch On Resistance
Low Side Switch On Resistance
Load Regulation
Line Regulation
Oscillator Frequency
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
Enable Threshold Low
Enable Threshold High
EN Input Leakage
Enable Threshold Low
Enable Threshold High
Input Low Current
Conditions
Min
2.7
Typ
Max
5.5
1.8
Units
V
V
mV
V
%
V
V
μA
μA
μA
A
m
m
%
%/V
Step-Down Converter; I
OUT
= 800mA
V
IN
Rising
Hysteresis
V
IN
Falling
I
OUT
= 0 to 800mA; V
IN
= 2.7V to 5.5V
250
1.5
-3.0
0.9
0.891
3.0
V
IN
0.909
1.0
1.0
0.2
0.9
EN = GND
V
IN
= 5.5, V
LX
= 0 to V
IN
V
FB
= 1.0V
1.2
400
300
0.5
0.2
1.6
2.0
140
15
I
LOAD
= 0 to 800mA
2.4
0.6
V
EN
= 5V, V
IN
= 5V
1.4
-1.0
V
IN
·0.7
-1.0
1.0
V
IN
·0.4
1.0
MHz
°C
°C
V
V
μA
V
V
μA
1. The AAT2503 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
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