MIC5167_12 Datasheet, PDF (8/23 Pages) Micrel Semiconductor – 1MHz, 6A, Integrated Switch, High-Efficiency, Synchronous Buck DDR Memory Terminator

Micrel, Inc.
Typical Characteristics (Continued)
Efficiency
vs. Output Current
95
10
3.3VIN
90
0
85
5.0VIN
-10
VTT Load Regulation
vs. Output Current
80
75
VTT = 0.9V
VDDQ = 1.8V
70
0
1
2
3
4
5
6
OUTPUT CURRENT (A)
-20
V_IN = 5.0V
-30
V_TT = 0.6V
VDDQ = 1.2V
-40
-6 -4 -2
0
2
4
6
OUTPUT CURRENT (A)
Efficiency (V_IN = 3.3V)
vs. Output Current
95
90
85
80
75
70
0
VIN = 3.3V
123456
OUTPUT CURRENT (A)
VTT
1.8V
1.6V
1.4V
1.2V
1.0V
0.9V
0.8V
0.6V
78
Efficiency (V_IN = 5.0V)
vs. Output Current
95
90
85
80
V_IN = 5.0V
75
VTT
1.8V
1.6V
1.4V
1.2V
1.0V
0.9V
0.8V
0.6V
70
012345678
OUTPUT CURRENT (A)
MIC5167
1100
1050
1000
950
900
850
800
0
Switching Frequency
vs. Output Current
VIN = 5.0V
VTT = 0.9V
V_DDQ = 1.8V
1
2
3
4
5
6
OUTPUT CURRENT (A)
January 2012
8
M9999-012312-B