AAT1130 Datasheet, PDF (7/18 Pages) Advanced Analogic Technologies – 2.5MHz 500mA Step-Down DC/DC Converter

Typical Characteristics
Supply Current vs. Temperature
100
90
80
70
60
50
40
30
20
-40
-15
10
35
60
85
Temperature (V)
DATA SHEET
AAT1130
2.5MHz 400mA Step-Down DC/DC Converter
Output Voltage Error vs. Temperature
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
-40
-15
10
35
60
85
Temperature (°C)
450
400
350
300
250
200
150
100
50
0
-40
R_DS(ON) vs. Temperature
PMOS
NMOS
-15
10
35
60
85
Temperature (°C)
Switching Frequency vs. Output Voltage
(I_OUT = 500mA)
3.75
3.25
2.75
2.25
1.75
1.25
0.6
0.9
1.2
1.5
1.8
Output Voltage (V)
Load Transient
(V_OUT = 1.8V; V_IN = 3.6V; C_OUT = 4.7µF; C_FF = 100pF; L = 1.5µH)
1.90
0.8
1.85
0.7
1.80
0.6
1.75
0.5
1.70
0.4
300mA
1.65
0.3
1.60
0.2
100mA
1.55
0.1
1.55
0.0
Time (5µs/div)
Load Transient
(V_OUT = 1.8V; V_IN = 3.6V; C_OUT = 4.7µF; L = 1.5µH)
1.90
0.8
1.85
0.7
1.80
0.6
1.75
0.5
1.70
0.4
300mA
1.65
0.3
1.60
0.2
100mA
1.55
0.1
1.50
0
Time (5µs/div)
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201977B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 15, 2013
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