ISL6446A
Typical Performance Curves Oscilloscope plots are taken using the ISL6446AEVAL1Z evaluation board, VIN = 12V,
VOUT1 = 5V, VOUT2 = 3.3V, fs = 300kHz, unless otherwise noted. (Continued)
VIN = 12V
VOUT1 = 5V
VOUT2 = 3.3V
EN/SSx TIED
TOGETHER
EN/SSx
VIN = 12V
VOUT1 = 5V
VOUT2 = 3.3V
EN/SSx TIED
TOGETHER
EN/SSx
VOUT1
VOUT1
VOUT2
IOUT1 = 0A
IOUT2 = 0A
FIGURE 10. EN/SS START-UP
VOUT2
IOUT1 = 25A
IOUT2 = 25A
FIGURE 11. EN/SS START-UP
VIN = 12V
VOUT1 = 5V
VOUT2 = 3.3V
EN/SSx
VOUT1
VOUT2
IOUT1 = 0A
IOUT2 = 0A
FIGURE 12. EN/SS SHUTDOWN
VIN = 12V
VOUT1 = 5V
VOUT2 = 3.3V
EN/SSx
VOUT1
IOUT1 = 25A
IOUT2 = 25A
VOUT2
FIGURE 13. EN/SS SHUTDOWN
VIN = 12V
VOUT1 = 5V
IOUT = 0A
EN/SSx
PHASE
LGATE
VOUT
FIGURE 14. PREBIASED START-UP (VOUT PREBIASED AT 3.5V)
VIN = 12V
VOUT1 = 5V
IOUT = 10A~20A
EN/SS
VOUT
IL
PHASE
FIGURE 15. OVERCURRENT PROTECTION
FN8384 Rev 3.00
Aug 27, 2015
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