AAT1185 Datasheet, PDF (7/16 Pages) Skyworks Solutions Inc. – High Voltage Step-Down Controller

Typical Characteristics
Circuit of Figure 4, unless otherwise specified.
Step-Down Controller Switching Frequency
vs. Input Voltage
(V_OUT = 3.3V; I_OUT = 10A)
5
4
3
2
1
0
-1
-2
-3
-4
-5
6
8
10 12 14 16 18 20 22 24
Input Voltage (V)
No Load Step-Down Controller
Input Current vs. Input Voltage
(V_EN = V_IN)
0.60
0.55
0.50
0.45
0.40
0.35
0.30
6
85°C
25°C
-40°C
9
12
15
18
21
24
Input Voltage (V)
DATA SHEET
AAT1185
High Voltage Step-Down Controller
Step-Down Controller Switching Frequency
vs. Temperature
(V_IN = 12V; V_OUT = 3.3V; I_OUT = 10A)
510
500
490
480
470
-40
-20
0
20
40
60
80
100
Temperature (°C)
Step-Down Controller Current Limit
(V_IN = 12V; V_OUT = 3.3V; L = 3.9µH)
4
2
0
12V
20
10
0
Time (400µs/div)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
202001A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 31, 2012
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