Input Voltage (V)
E
ff
ic
ie
n
cy
(%)
5
15
25
35
45
55
65
60
70
80
90
100
I
O
= 0.5A
I
O
= 1A
I
O
= 1.5A
Load Current (A)
Eff
icie
n
cy (%)
0.005
0.01
0.05
0.1
0.5
1
1.5
20
50
100
FPWM = 0
FPWM = 1
Vin =12V
Vin = 24V
Vin = 48V
Performance Curves with LM5160A, LM5160
Figure 9. Efficiency DCM vs. CCM at 300kHz
Figure 8. Efficiency vs. V
IN
Figure 10. V
IN
= 48V and FPWM = 0 at no load
Figure 11. V
IN
= 48V and FPWM = 0 at no load (Zoomed)
Figure 12. V
IN
= 48V and FPWM = 1 at no load
Figure 13. Load Transient (I
O
= 300mA to 1.5A)
8
LM5160A, LM5160 User’s Guide
SNVU441B – October 2014 – Revised April 2015
Copyright © 2014–2015, Texas Instruments Incorporated
