AAT1152 Advanced Analogic Technologies, AAT1152 Datasheet - Page 7

• Manufacturer Part Number: AAT1152
• Description: 850kHz 1A Synchronous Buck DC/DC Converter
• Manufacturer: Advanced Analogic Technologies

Typical Characteristics
1152.2003.01.0.9
V
I
500mA/div
OUT
OUT
V
BW=20MHz
IN
12
10
V
8
6
4
2
0
=3.6V
=1.5V
=1.2A
OUT
V
-20
No Load Input Current vs. Temperature
2V/div
5mV/div
I
IN
OUT
2V/div
V
=3.6V
=1.5V
(LX)
V
=0A
I
L
OUT
LX
-5
V
CC
Switching Waveform
10
= 4.2V
Temperature ( C)
V
CC
25
Output Ripple
1.5V, No Load
500nsec/div
500nsec/div
V
= V
CC
V
= 3.6V
P
CC
40
= 5.5V
55
V
V
850kHz 1A Synchronous Buck DC/DC Converter
CC
CC
= 2.7V
= 5.0V
70
85
I
Inductor Current
LOAD
BW=20MHz
=0.25 to 1.2A
V
V
OUT
190
180
170
160
150
140
130
120
100
200
110
5mV/div
500mA/div
V
I
IN
OUT
50mV/div
2V/div
V
OUT
=3.6V
=1.5V
-20
IN
V
=1A
=3.6V
=1.5V
OUT
LX
Non-Switching I
V
OUT
V
-5
CC
= 5.0V
V
10
CC
FB = 0V, V
Temperature ( C)
V
= 2.7V
Transient Response
CC
Output Ripple
1.5V, 1A Load
= 5.5V
500nsec/div
25
Q
20 s/div
vs. Temperature
V
CC
40
P
= 3.6V
= V
AAT1152
CC
55
V
CC
= 4.2V
70
85
7