MIC4930 Datasheet, PDF (6/24 Pages) Micrel Semiconductor – Hyper Speed Control 3A Buck Regulator

MIC4930
2.0 TYPICAL PERFORMANCE CURVES
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
100
95
90
85
80
75
70
65
60
0.0
FIGURE 2-1:
Current.
V_IN = 5V
V_OUT = 3.3V
0.5 1.0 1.5 2.0 2.5 3.0
OUTPUT CURRENT (A)
Efficiency vs. Output
100
95
90
85
80
75
70
65
60
0.0
FIGURE 2-2:
Current.
V_IN = 3.3V
V_OUT = 1.8V
V_IN = 5.0V
V_OUT = 1.8V
0.5 1.0 1.5 2.0 2.5 3.0
OUTPUT CURRENT (A)
Efficiency vs. Output
100
95
90
85
80
75
70
65
60
0.0
FIGURE 2-3:
Current.
V = 3.3V
V_OUT = 1.8V
V_IN = 5.0V
V_OUT = 1.8V
0.5 1.0 1.5 2.0 2.5 3.0
Efficiency vs. Output
10
8
6
4
2
V_OUT = 1.8V
0
2.5
FIGURE 2-4:
Voltage.
3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
Current Limit vs. Input
8
V_IN = 3.3V
6
V_OUT = 1.8V
4
V_IN = 5V
V_OUT = 1.8V
2
0
0.0
0.1
FIGURE 2-5:
Voltage.
0.2
0.3
0.4
0.5
FEEDBACK VOLTAGE (V)
Current Limit vs. Feedback
3.0
2.0
1.0
0.0
V_OUT = 1.8V
-1.0
I_OUT = 0A
-2.0
2.7
FIGURE 2-6:
Voltage.
3.0
3.3
3.6
INPUT VOLTAGE (V)
Line Regulation vs. Input
DS20005669A-page 6
 2016 Microchip Technology Inc.