ISL78201 Datasheet, PDF (11/23 Pages) Intersil Corporation – 40V 2.5A Regulator with Integrated High-side MOSFET for Synchronous Buck or Boost Buck Converter

Performance Curves (Continued)
ISL78201
V_OUT 2V/DIV
PHASE 20V/DIV
V_OUT 2V/DIV
PHASE 20V/DIV
2ms/DIV
FIGURE 18. SYNCHRONOUS BUCK MODE, V_IN 36V, I_O 2A,
ENABLE ON
2ms/DIV
FIGURE 19. SYNCHRONOUS BUCK MODE, V_IN 36V, I_O 2A,
ENABLE OFF
V_OUT 2V/DIV
PHASE 20V/DIV
V_OUT 20mV/DIV (5V OFFSET)
PHASE 20V/DIV
2ms/DIV
FIGURE 20. V_IN 36V, PREBIASED START-UP
5µs/DIV
FIGURE 21. SYNCHRONOUS BUCK WITH FORCE PWM MODE,
V_IN 36V, I_O 2A
V_OUT 100mV/DIV (5V OFFSET)
I_OUT 1A/DIV
PHASE 20V/DIV
1ms/DIV
FIGURE 22. V_IN 24V, 0 TO 2A STEP LOAD, FORCE PWM MODE
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V_OUT 70mV/DIV (5V OFFSET)
V_OUT 1V/DIV
LGATE 5V/DIV
PHASE 20V/DIV
100µs/DIV
FIGURE 23. V_IN 24V, 80mA LOAD, PFM MODE
FN8615.1
March 31, 2015