1MHz 3A Buck DC/DC Converter
Typical Characteristics
Transient Response
I
OUT
= 0 to 3.0A, V
OUT
= 3.3V, V
IN
= 5.0V
100
0
3x 100µF 6.3V Ceramic
TDK P/N C3325X5R0J107M
7
6
AAT1154
Transient Response
I
OUT
= 0 to 3.0A, V
OUT
= 3.3V, V
IN
= 5.0V
100
0
2x 100 uF 6.3V Ceramic
TDK P/N C3325X5R0J107M
7
6
Inductor Current
(bottom) (A)
Inductor Current
(bottom) (A)
Output Voltage
(top) (mV)
-200
-300
-400
-500
-600
-700
0
100
200
300
400
4
3
2
1
0
-1
500
Output Voltage
(top) (mV)
-100
5
-100
-200
-300
-400
-500
-600
-700
0
100
200
300
400
5
4
3
2
1
0
-1
500
Time (µs)
µ
Time (µs)
µ
Tantalum Transient Response
I
OUT
= 0 to 3.0A, V
OUT
= 3.3V, V
IN
= 5.0V
100
0
7
6
Inductor Current
(bottom) (A)
Output Voltage
(top) (mV)
-100
-200
-300
-400
-500
-600
-700
0
120µF 6.3V Tantalum
Vishay P/N 594D127X96R3C2T
100
200
300
400
500
5
4
3
2
1
0
-1
Time (µs)
µ
8
1154.2003.08.0.91
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
