ISL78208 Datasheet, PDF (12/25 Pages) Intersil Corporation – Wide VIN Dual Standard Buck Regulator with 3A/3A Continuous Output Current

ISL78208
Typical Performance Curves Circuit of Figure 2. V_IN = 12V, V_OUT1 = 5V, V_OUT2 = 3.3V, I_OUT1 = 3A, I_OUT2 = 3A,
T_A = -40°C to +105°C, unless otherwise noted. Typical values are at T_A = +25°C. (Continued)
EN1 5V/DIV
V_OUT2 RIPPLE 20mV/DIV
V_OUT1 2V/DIV
IL1 0.5A/DIV
PG1 5V/DIV
IL2 2A/DIV
FIGURE 22. LOAD TRANSIENT CHANNEL 2
FIGURE 23. SOFT-START WITH NO LOAD CHANNEL 1
EN2 5V/DIV
V_OUT2 2V/DIV
IL2 0.5A/DIV
PG2 5V/DIV
EN1 5V/DIV
V_OUT1 2V/DIV
IL1 2A/DIV
PG1 5V/DIV
FIGURE 24. SOFT-START WITH NO LOAD CHANNEL 2
EN2 5V/DIV
V_OUT2 2V/DIV
IL2 2A/DIV
PG2 5V/DIV
FIGURE 26. SOFT-START AT FULL LOAD CHANNEL 2
FIGURE 25. SOFT-START AT FULL LOAD CHANNEL 1
EN1 5V/DIV
V_OUT1 1V/DIV
IL1 0.5A/DIV
PG 5V/DIV
FIGURE 27. SHUTDOWN WITH NO LOAD CHANNEL 1
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FN8354.0
July 12, 2013