XR79103EL-F Datasheet, PDF (8/20 Pages) Exar Corporation – 22V, 3A Synchronous Step-Down COT Power Module

XR79103
Typical Performance Characteristics (Continued)
T_A = 25°C, V_IN = 12V, V_OUT = 1.2V, I_OUT = 3A, f = 600kHz, unless otherwise specified. Schematic shown in Figure 27.
SW
VOUT
12mVp-p
AC coupled 20MHz
SW
VOUT
32mVp-p
AC coupled 20MHz
IOUT
Figure 14. Steady State CCM, I_OUT = 3A
IOUT
Figure 15. Steady State DCM, I_OUT = 0A
VIN
EN
VOUT
IOUT
4ms/div
Figure 16. Power Up, 3A
VIN
EN
VOUT
IOUT
4ms/div
Figure 17. Power Up, 0A
SW
VOUT
AC coupled 20MHz
38mV
32mV
IOUT
Di/Dt = 2.5A/us
20 us/div
Figure 18. Load Step, CCM,
0A-1.5A-0A
REV1B
SW
VOUT
AC coupled 20MHz
38mV
48mV
IOUT
Di/Dt = 2.5A/us
40 us/div
Figure 19. Load Step, DCM/CCM,
0.05A-1.5A-0.05A
8/19