MIC22400 Datasheet, PDF (6/19 Pages) Micrel Semiconductor – 4A Integrated Switch Synchronous Buck Regulator with Frequency Programmable up to 4MHz

Micrel, Inc.
Typical Characteristics (continued)
Efficiency V_O = 3.3V
100
95
90
85
80
75
70
65
V_IN = 5V
600 _{0.5 1 1.5 2 2.5 3 3.5 4 4.5}
OUTPUT CURRENT (A)
V_IN = 5.0V, V_OUT = 1.2V
60
200
40
150
Phase @ 4A
100
20
50
0
Gain @ 4A
-20
-40
0
-50
-100
-150
-601
10
100
1,00-2000
FREQUENCY (kHz)
Efficiency V_O = 1.8V
100
95
V_IN - 3.3V
90
85 V_IN - 5V
80
75
70
65
600 _{0.5 1 1.5 2 2.5 3 3.5 4 4.5}
OUTPUT CURRENT (A)
V_IN = 3.3V, V_OUT = 1.2V
60
200
40
150
Phase @ 4A
100
20
50
0
Gain @ 4A
-20
-40
0
-50
-100
-150
-601
10
100
1,00-2000
FREQUENCY (kHz)
MIC22400
Efficiency V_O = 1.2V
100
95
V_IN - 3.3V
90
85
80 ^{VIN - 5V}
75
70
65
600 _{0.5 1 1.5 2 2.5 3 3.5 4 4.5}
OUTPUT CURRENT (A)
V_IN = 3.3V, V_OUT = 1.8V
60
200
40
Phase @ 4A 150
100
20
50
0
0
-20
Gain @ 4A
-40
-50
-100
-150
-601
10
100
1,00-2000
FREQUENCY (kHz)
February 2008
6
M9999-022108-A