ISL85402
Performance Curves (Continued)
VOUT 20mV/DIV (5V OFFSET)
PHASE 20V/DIV
5µs/DIV
FIGURE 15. SYNCHRONOUS BUCK WITH FORCE PWM MODE,
VIN 36V, IO 2A
VOUT 70mV/DIV (5V OFFSET)
LGATE 5V/DIV
VOUT 1V/DIV
PHASE 20V/DIV
100µs/DIV
FIGURE 17. VIN 24V, 80mA LOAD, PFM MODE
VOUT 100mV/DIV (5V OFFSET)
IOUT 1A/DIV
PHASE 20V/DIV
1ms/DIV
FIGURE 16. VIN 24V, 0 TO 2A STEP LOAD, FORCE PWM MODE
VOUT 200mV/DIV (5V OFFSET)
LGATE 5V/DIV
IOUT 1A/DIV
PHASE 20V/DIV
1ms/DIV
FIGURE 18. VIN 24V, 0 TO 2A STEP LOAD, PFM MODE
VOUT 10mV/DIV (5V OFFSET)
PHASE 5V/DIV
VOUT 10mV/DIV (5V OFFSET)
PHASE 10V/DIV
20µs/DIV
FIGURE 19. NON-SYNCHRONOUS BUCK, FORCE PWM MODE,
VIN 12V, NO LOAD
FN7640 Rev 1.00
April 25, 2013
5µs/DIV
FIGURE 20. NON-SYNCHRONOUS BUCK, FORCE PWM MODE,
VIN 12V, 2A
Page 11 of 22