XR76201 Datasheet, PDF (9/16 Pages) Exar Corporation – 40V PowerBloxTM 1.5A Synchronous Step-Down COT Regulator

XR76201
Typical Performance Characteristics (Continued)
Efficiency
Unless otherwise noted: T_AMBIENT = 25°C, no air flow, L = 6.8µH, inductor losses are included, Application Circuit from the
Application Information section.
100
95
600kHz
90
500kHz
85
400kHz
80
75
70
65
60
5.0V DCM
5.0V CCM
3.3V DCM
3.3V CCM
55
1.8V DCM
1.8V CCM
50
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5
IOUT (A)
100
95
800kHz
90
85
700kHz
600kHz
80
400kHz
75
70
65
60
12.0V DCM
5.0V DCM
12.0V CCM
5.0V CCM
55
3.3V DCM
1.8V DCM
3.3V CCM
1.8V CCM
50
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5
IOUT (A)
Figure 19.
Efficiency, V_IN = 12V
Figure 20.
Efficiency, V_IN = 24V
REV1A
9/16