AAT2689 Analogic Corporation, AAT2689 Datasheet - Page 6

• Manufacturer Part Number: AAT2689
• Manufacturer: Analogic Corporation

Typical Characteristics
6
6
SystemPower
SystemPower
Step-Down Converter Load Transient Response
520
510
500
490
480
470
(V
3.4
3.3
3.2
-40
20
15
10
IN1
5
0
Step-Down Converter Soft Start
= 12V; V
Step-Down Converter Switching
1.25A
(I
-20
Frequency vs. Temperature
OUT1
V
OUT1
TM
TM
= 1.25A to 2.5A; V
EN1
(V
Time (100µs/div)
= 3.3V; C
PMIC Solution for 12V Adapter Systems with 2-Output High Performance Step-Down Converters
PMIC Solution for 12V Adapter Systems with 2-Output High Performance Step-Down Converters
0
IN1
Time (500µs/div)
= 10V; V
Temperature (°C)
= 12V; I
2.5A
20
OUT1
OUT1
OUT1
= 2x22µF)
= 3.3V; I
40
= 2.5A)
IN1
= 12V;
60
OUT1
= 2.5A)
80
3.0
2.5
2.0
1.5
1.0
4.0
2.0
0.0
100
w w w . a n a l o g i c t e c h . c o m
w w w . a n a l o g i c t e c h . c o m
Step-Down Converter Line Transient Response
-0.2
-0.4
-0.6
-0.8
-1.0
Step-Down Converter Switching Frequency
-2
-4
-6
-8
1.0
0.8
0.6
0.4
0.2
0.0
8
6
4
2
0
15
10
-50
5
0
-40
(V
IN1
Voltage Error vs. Temperature
Step-Down Converter Output
-20
= 6V to 10V; V
-25
(V
(V
PRODUCT DATASHEET
PRODUCT DATASHEET
vs. Input Voltage
OUT1
IN1
0
Time (2ms/div)
0
Temperature (°C)
Temperature (°C)
= 12V; V
= 3.3V; I
OUT1
20
AAT2689
AAT2689
25
= 3.3V; I
OUT1
OUT1
40
= 3.3V)
= 2.5A)
50
OUT1
60
2689.2008.06.1.0
2689.2008.06.1.0
I
I
I
I
OUT1
OUT1
OUT1
OUT1
= 2.5A)
= 0.1mA
= 1mA
= 1250mA
= 2500mA
75
80
3.4
3.3
3.2
100
100