PRODUCT DATASHEET
AAT2113A
SwitchReg
TM
3MHz, Fast Transient 1.5A Step-Down Converter in 2mm x 2mm Package
Electrical Characteristics
1
V
IN
= 3.3V, T
A
= -40°C to 85°C unless otherwise noted. Typical values are at T
A
= 25°C.
Symbol
V
IN
V
OUT
V
UVLO
V
OUT
I
Q
I
SHDN
I
LIM
R
DS(ON)H
R
DS(ON)L
ΔV
LOADREG
ΔV
LINEREG
/
ΔV
IN
V
FB
I
LXLEAK,R
I
FBLEAK
F
OSC
T
S
T
SD
T
HYS
EN Logic
V
IL
V
IH
I
LEAK
Description
Input Voltage
Output Voltage Range
UVLO Threshold
Output Voltage Tolerance
Quiescent Current
Shutdown Current
Current Limit
High Side Switch On-Resistance
Low Side Switch On-Resistance
Load Regulation
Line Regulation
Feedback Threshold Voltage Accuracy
(Adjustable Version)
LX Reverse Leakage Current
FB Leakage Current
Internal Oscillator Frequency
Start-up Time
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
EN Threshold Low
EN Threshold High
EN Leakage Current
Conditions
Min
2.7
1
Typ
3.3
1.2
180
Max
5.5
1.8
2.4
Units
V
V
V
mV
V
%
μA
μA
A
mΩ
mΩ
%
%/V
V
IN
rising
Hysteresis
V
IN
falling
I
OUT
= 0A to 1.5A, V
IN
= 3.3V, V
OUT
= 1.2V
fi
xed
No Load
EN = GND
1.6
-3.0
55
2
3
140
100
0.5
0.3
0.0591
0.60
0.609
1.0
0.2
3.4
+3.0
90
1.0
I
LOAD
= 0A to 1.5A
V
IN
= 3.3V to 4.0V
No load, T
A
= 25°C
V
IN
unconnected, V
LX
= 5.5V, EN = GND
V
OUT
= 1.2V
2.6
Enable to Output Regulation
V
μA
μA
MHz
μs
°C
°C
V
V
μA
3
60
140
25
0.4
V
EN
= 5.5V
1.4
-1.0
1.0
1. The AAT2113A is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and cor-
relation with statistical process controls.
4
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2113A.2009.06.1.1
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