AAT2500 Analogic Corporation, AAT2500 Datasheet - Page 10

• Manufacturer Part Number: AAT2500
• Manufacturer: Analogic Corporation

Typical Characteristics
Unless otherwise noted, V
10
Step-Down Converter Load Transient Response
Step-Down Converter Load Transient Response
-0.05
-0.15
-0.25
-0.35
0.05
-0.1
-0.2
-0.3
0.1
0
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
2.5
Step-Down Converter Line Regulation
I
(30mA - 300mA; V
OUT
(30mA - 300mA; V
C1 = 10µ µ F; EN = V
C1 = 4.7µ µ F; EN = V
(V
= 100mA
3.0
OUT
300mA
300mA
= 1.8V; EN = V
I
OUT
3.5
Time (25µs/div)
Time (25µs/div)
= 400mA
Input Voltage (V)
IN
4.0
IN
IN
30mA
= 3.6V; V
IN
= 3.6V; V
IN
; ENLDO = GND)
30mA
; ENLDO = GND)
= 5V, T
IN
; ENLDO = GND)
4.5
OUT
OUT
I
OUT
A
= 1.8V;
5.0
= 1.8V;
= 10mA
= 25°C.
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
1MHz Step-Down Converter/LDO Regulator
6.0
Step-Down Converter Load Transient Response
(30mA - 300mA; V
(V
-1.0
-2.0
-3.0
-4.0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
4.0
3.0
2.0
1.0
0.0
0.1
0.0
Step-Down Converter Line Transient
1.90
1.85
1.80
1.75
1.70
1.65
1.60
1.55
1.50
OUT
Step-Down Converter Soft Start
= 1.8V @ 400mA; EN = V
C4 = 100pF; EN = V
(V
IN
EN = V
= 3.6V; V
300mA
Time (25µs/div)
Time (25µ µ s/div)
IN
IN
= 3.6V; V
250µ µ s/div
; ENLDO = GND)
OUT
30mA
= 1.8V; 400mA;
IN
; ENLDO = GND)
OUT
IN
; ENLDO = GND)
= 1.8V; C1 = 10µ µ F;
AAT2500
2500.2005.08.1.9
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0