AAT2153 Datasheet, PDF (9/17 Pages) Advanced Analogic Technologies – 2.5A Low Noise Step-Down Converter

SwitchReg^TM
Typical Characteristics
Heavy Load Switching Waveform
(V_IN = 3.6V; V_OUT = 1.8V; I_OUT = 2.5A; R1 = 10Ω; C_OUT = 22μF)
10
0
-10
2.8
2.6
2.4
2.2
Time (400ns/div)
Light Load Switching Waveform
(V_IN = 3.6V; V_OUT = 1.8V; I_OUT = 1mA; C_FF = 0pF)
80
0.7
40
0.6
0
0.5
-40
0.4
-80
0.3
-120
0.2
-160
0.1
-200
0.0
-240
-0.1
Time (5µs/div)
Light Load Switching Waveform
(V_IN = 3.6V; V_OUT = 1.8V; I_OUT = 1mA; C_FF = 100pF)
80
0.7
40
0.6
0
0.5
-40
0.4
-80
0.3
-120
0.2
-160
0.1
-200
0.0
-240
-0.1
Time (5µs/div)
PRODUCT DATASHEET
AAT2153
2.5A Low Noise Step-Down Converter
Heavy Load Switching Waveform
(V_IN = 3.6V; V_OUT = 1.8V; I_OUT = 2.5A; R1 = 0Ω; C_OUT = 2x22μF)
10
0
-10
2.8
2.6
2.4
2.2
Time (400ns/div)
Light Load Switching Waveform
(V_IN = 3.6V; V_OUT = 1.8V; I_OUT = 1mA; C_FF = 0pF)
80
0.7
40
0.6
0
0.5
-40
0.4
-80
0.3
-120
0.2
-160
0.1
-200
0.0
-240
-0.1
Time (200µs/div)
Light Load Switching Waveform
(V_IN = 3.6V; V_OUT = 1.8V; I_OUT = 1mA; C_FF = 100pF)
80
0.7
40
0.6
0
0.5
-40
0.4
-80
0.3
-120
0.2
-160
0.1
-200
0.0
-240
-0.1
Time (500µs/div)
2153.2008.09.1.0
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