AAT1149 Analogic Corporation, AAT1149 Datasheet - Page 7

• Manufacturer Part Number: AAT1149
• Manufacturer: Analogic Corporation

Typical Characteristics
1149.2006.11.1.0
1.30
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
750
700
650
600
550
500
450
400
350
300
4.50
4.25
4.00
3.75
3.50
3.25
3.00
2.75
2.50
(V
2.5
OUT
(V
= 1.8; No Load; No Feedforward Capacitor)
N-Channel R
25°C
OUT
3.0
= 1.1V; No Feedforward Capacitor)
Line Transient
Load Transient
85°C
120°C
3.5
Time (50µs/div)
Time (50µs/div)
Input Voltage (V)
DS(ON)
4.0
100°C
vs. Input Voltage
400mA
4.5
1mA
5.0
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0.00
5.5
1.94
1.92
1.90
1.88
1.86
1.84
1.82
1.80
1.78
6.0
1.30
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
750
700
650
600
550
500
450
400
350
300
1.86
1.85
1.84
1.83
1.82
1.81
1.80
1.79
1.78
2.5
400mA Step-Down Converter
P-Channel R
25°C
3.0
(V
(V
OUT
OUT
85°C
Load Transient
Line Transient
3.5
= 1.1V; C
Time (50µs/div)
120°C
= 1.8; C
3MHz Fast Transient
Input Voltage (V)
Time (20µs/div)
DS(ON)
4.0
100°C
FF
FF
vs. Input Voltage
400mA
= 100pF)
= 100pF)
4.5
1mA
5.0
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0.00
5.5
4.50
4.25
4.00
3.75
3.50
3.25
3.00
2.75
2.50
6.0
7