AAT1150 Advanced Analogic Technologies, AAT1150 Datasheet - Page 7

• Manufacturer Part Number: AAT1150
• Description: 1MHz 1A Step-Down DC/DC Converter
• Manufacturer: Advanced Analogic Technologies

Typical Characteristics
1150.2005.03.1.2
500mA/div
BW = 20MHz
12
10
8
6
4
2
0
-20
2V/div
5mV/div
No Load Input Current vs. Temperature
V
2V/div
(LX)
I
V
L
OUT
LX
-5
V
CC
(V
10
= 4.2V
IN
(V
Temperature (°C)
= 3.6V; V
Switching Waveform
IN
= 3.6V; V
(V
25
CC
Output Ripple
500nsec/div
V
500nsec/div
= V
CC
OUT
V
= 3.6V
CC
OUT
P
40
= 1.5V; I
)
= 5.5V
= 1.5V; I
55
OUT
OUT
V
V
= 1.2A)
CC
CC
= 0A)
= 2.7V
= 5.0V
70
85
1MHz 1A Step-Down DC/DC Converter
Inductor Current
BW = 20MHz
200
190
180
170
160
150
140
130
120
110
100
500mA/div
50mV/div
-20
5mV/div
2V/div
Non-Switching I
V
V
OUT
OUT
LX
V
-5
CC
(V
= 5.0V
IN
V
= 3.6V; V
10
CC
(V
(FB = 0V; V
Temperature (°C)
V
= 2.7V
IN
Transient Response
CC
= 3.6V; V
= 5.5V
25
OUT
Output Ripple
Q
500nsec/div
20µs/div
= 1.5V; I
vs. Temperature
V
P
CC
OUT
= V
40
= 3.6V
= 1.5V; I
CC
AAT1150
)
LOAD
55
= 0.25 to 1.2A)
V
OUT
CC
= 4.2V
70
= 1A)
85
7