AAT2513
Dual 600mA Step-Down
Converter with Synchronization
Electrical Characteristics
Load Transient
(5mA to 600mA; V
IN
= 3.6V; V
OUT
= 1.8V; C
OUT
= 4.7µF)
Load Transient
(1mA to 600mA; V
IN
= 3.6V; V
OUT
= 1.8V; C
OUT
= 10µF; C
FF
= 100pF)
Load Current (middle) (A)
Inductor Current (bottom) (A)
Load Current (middle) (A)
Inductor Current (bottom) (A)
2.8
2.0
Output Voltage (top) (V)
Output Voltage (top) (V)
2.3
1.8
1.3
600mA
5mA
1.0
0.5
0.0
-0.5
1.8
1.6
600mA
1mA
0.5
0
Time (40µs/div)
Time (40µs/div)
Load Transient
(450mA to 600mA; V
IN
= 3.6V; V
OUT
= 1.8V; C
OUT
= 4.7µF)
Load Transient
(450mA to 600mA; V
IN
= 3.6V; V
OUT
= 1.8V; C
OUT
= 10µF; C
FF
= 100pF
Load Current (middle) (A)
Inductor Current (bottom) (A)
Output Voltage (AC) (top) (V)
2.0
2.0
1.9
1.8
1.7
600mA
450mA
0.6
0.4
0.2
Load Current (middle) (A)
Output Current (bottom) (A)
Output Voltage (top) (V)
1.8
1.6
600mA
450mA
0.6
0.4
0.2
Time (20µs/div)
Time (20µs/div)
Line Transient
(V
IN
= 3.6V to 4.2V; V
OUT
= 1.8V; I
OUT
= 600mA; C
OUT
= 4.7µF)
5
Output Voltage (bottom) (V)
Input Voltage (top) (V)
4
3
2
1
1.84
1.82
1.80
1.78
1.76
1.74
Time (40µs/div)
8
2513.2007.04.1.1
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
