XR79206EL-F Datasheet, PDF (9/20 Pages) Exar Corporation – 40V, 6A Synchronous Step-Down COT Power Module

XR79206
Typical Performance Characteristics (Continued)
Efficiency and Package Thermal Derating
T_A = 25°C, No airflow, f = 500kHz, unless otherwise specified. Schematic shown in Figure 27.
100
95
90
85
80
75
70
65
60
0.1
100
95
90
85
80
75
70
65
60
0.1
5.0V DCM
3.3V DCM
1.8V DCM
5.0V CCM
3.3V CCM
1.8V CCM
1.0
IOUT (A)
Figure 20. Efficiency, V_IN = 12V
700kHz
12.0V DCM
5.0V DCM
3.3V DCM
1.8V DCM
12.0V CCM
5.0V CCM
3.3V CCM
1.8V CCM
1.0
IOUT (A)
Figure 22. Efficiency, V_IN = 24V
120
115
110
105
100
95
90
85
80
75
70
5.0V CCM
65
3.3V CCM
1.8V CCM
60
1.0
2.0
3.0
4.0
5.0
6.0
IOUT (A)
Figure 21. Maximum T_AMBIENT vs. I_OUT,
V_IN = 12V
120
115
110
105
100
95
90
85
80 ^700kHz
75
12.0V CCM
70
5.0V CCM
65
3.3V CCM
1.8V CCM
60
1.0
2.0
3.0
4.0
5.0
6.0
IOUT (A)
Figure 23. Maximum T_AMBIENT vs. I_OUT,
V_IN = 24V
REV1B
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