1MHz 2.5A Step-Down DC/DC Converter
Typical Characteristics
Tantalum Transient Response
(I
OUT
= 0 to 3.0A; V
OUT
= 3.3V; V
IN
= 5.0V)
3.40
3.30
7
6
5
4
3
2
1
120μF 6.3V Tantalum
Vishay P/N 594D127X96R3C2T
0
100
200
300
400
500
0
-1
3.40
3.30
AAT1155
Transient Response
(I
OUT
= 0 to 3.0A; V
OUT
= 3.3V; V
IN
= 5.0V)
7
6
2x 100μF 6.3V Ceramic
TDK P/N C3325X5R0J107M
Vishay GRM43SR60J107ME20L
Inductor Current
(bottom) (A)
Inductor Current
(bottom) (A)
Output Voltage
(top) (mV)
Output Voltage
(top) (mV)
3.20
3.10
3.00
2.90
2.80
2.70
2.60
3.20
3.10
3.00
2.90
2.80
2.70
2.60
0
100
200
5
4
3
2
1
0
-1
300
400
500
Time (μs)
μ
Time (μs)
μ
Transient Response
(I
OUT
= 0 to 3.0A; V
OUT
= 3.3V; V
IN
= 5.0V)
3.40
3.30
7
6
3x 100μF 6.3V Ceramic
TDK P/N C3325X5R0J107M
Vishay GRM43SR60J107ME20L
Inductor Current
(bottom) (A)
Output Voltage
(top) (mV)
3.20
3.10
3.00
2.90
2.80
2.70
2.60
0
100
200
5
4
3
2
1
0
300
400
-1
500
Time (μs)
μ
8
1155.2006.09.1.7
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
