AAT1143IJS-1.2-T1 AnalogicTech, AAT1143IJS-1.2-T1 Datasheet - Page 6

• Manufacturer Part Number: AAT1143IJS-1.2-T1
• Description: 1MHz 400mA Step-Down Converter
• Manufacturer: AnalogicTech

Typical Characteristics
6
-0.10
-0.20
0.20
0.10
0.00
750
700
650
600
550
500
450
400
350
300
750
700
650
600
550
500
450
400
350
300
-40
2.5
2.5
Switching Frequency vs. Temperature
P-Channel R
N-Channel R
25°C
25°C
-20
3.0
3.0
85°C
85°C
(V
0
120°C
3.5
3.5
IN
120°C
Temperature (° ° C)
Input Voltage (V)
Input Voltage (V)
= 3.6V; V
DS(ON)
DS(ON)
20
4.0
4.0
100°C
100°C
vs. Input Voltage
vs. Input Voltage
O
40
4.5
4.5
= 1.5V)
5.0
5.0
60
5.5
80
5.5
6.0
100
6.0
1MHz 400mA Step-Down Converter
(30mA - 300mA; V
35
30
25
20
15
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
0.1
0.0
2.5
Quiescent Current vs. Input Voltage
(30mA - 300mA; V
C1 = 10µ µ F; C4 = 100pF; see Figure 1)
Load Transient Response
3.0
Load Transient Response
85°C
25°C
-40°C
300mA
300mA
3.5
Time (25µs/div)
Time (25µs/div)
IN
= 3.6V; V
Input Voltage (V)
(V
IN
4.0
30mA
O
30mA
= 3.6V; V
= 1.8V)
OUT
4.5
= 1.8V; C1 = 10µ µ F)
OUT
AAT1143
= 1.8V;
5.0
1143.2005.09.1.7
5.5
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
6.0