PRODUCT DATASHEET
AAT2113A
SwitchReg
TM
3MHz, Fast Transient 1.5A Step-Down Converter in 2mm x 2mm Package
Typical Characteristics
Load Transient
(V
OUT
= 1.2V;
V
IN
= 3.3V;
I
OUT
= 0A to 1.5A;
C
OUT
= 10µF)
1.30
1.25
1.90
1.85
Load Transient
(V
OUT
= 1.8V;
V
IN
= 3.3V;
I
OUT
= 0A to 1.5A;
C
OUT
= 10µF)
Output Current
(bottom) (500mA/div)
Output Current
(bottom) (500mA/div)
Output Voltage
(top) (50mV/div)
1.15
1.10
1.5
1.0
0.5
0.0
Output Voltage
(top) (50mV/div)
1.20
1.80
1.75
1.70
1.5
1.0
0.5
0.0
-0.5
Time (20µs/div)
Time (20µs/div)
Load Transient
(V
OUT
= 1.2V;
V
IN
= 3.3V;
I
OUT
= 75mA to 1350mA;
C
OUT
= 10µF)
1.30
1.25
1.90
1.85
Load Transient
(V
OUT
= 1.8V;
V
IN
= 3.3V;
I
OUT
= 75mA to 1350mA;
C
OUT
= 10µF)
Output Current
(bottom) (500mA/div)
Output Current
(bottom) (500mA/div)
Output Voltage
(top) (50mV/div)
1.15
1.10
1.5
1.0
0.5
0.0
-0.5
Output Voltage
(top) (50mV/div)
1.20
1.80
1.75
1.70
1.5
1.0
0.5
0.0
Time (20µs/div)
Time (20µs/div)
Line Transient
(V
OUT
= 1.2V;
V
IN
= 3.3V to 3.6V;
I
OUT
= 1A)
4.0
3.5
4.0
3.5
Line Transient
(V
OUT
= 1.8V;
V
IN
= 3.3V to 3.6V;
I
OUT
= 1A)
Output Voltage
(bottom) (5mV/div)
Output Voltage
(bottom) (5mV/div)
Input Voltage
(top) (500mV/div)
3.0
1.210
1.205
1.200
1.195
1.190
Input Voltage
(top) (500mV/div)
3.0
1.815
1.810
1.805
1.800
1.795
Time (50µs/div)
Time (20µs/div)
2113A.2009.06.1.1
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