Typical Performance Curves
9
SNVU504A – August 2016 – Revised August 2016
Copyright © 2016, Texas Instruments Incorporated
LM5161 Buck EVM User’s Guide
V
IN
= 48 V
F
SW
= 300kHz
FPWM = 1
V
OUT
- V
CC
diode
connected
Figure 10. Pre-Bias Startup at No Load
V
IN
= 48 V
FPWM = 0
F
SW
= 300kHz
Figure 11. Load Transient (I
Load
= No Load to Full Load to
No Load) in DCM
V
IN
= 48 V
FPWM = 0
F
SW
= 300kHz
V
OUT
= 12 V
Figure 12. Load Transient (I
Load
= No Load to Full Load) in
DCM
V
IN
= 48 V
FPWM = 0
F
SW
= 300kHz
V
OUT
= 12 V
Figure 13. Load Transient (I
Load
= Full Load to No Load) in
DCM
V
IN
= 48 V
FPWM = 1
F
SW
= 300kHz
V
OUT
= 12 V
Figure 14. Load Transient (I
Load
= No Load to Full Load to
No Load) in CCM
V
IN
= 48 V
FPWM = 1
F
SW
= 300kHz
V
OUT
= 12 V
Figure 15. Load Transient (I
Load
= No Load to Full Load) in
CCM