ISL6558EVAL1 Intersil, ISL6558EVAL1 Datasheet - Page 12

• Manufacturer Part Number: ISL6558EVAL1
• Description: EVAL BOARD W/LOAD TESTER ISL6
• Manufacturer: Intersil
• Series: Endura™r

Specifications of ISL6558EVAL1

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Power - Output: 150W
• Voltage - Output: 1.5V
• Current - Output: 100A
• Voltage - Input: 5V, 12V
• Regulator Topology: Buck
• Frequency - Switching: 500kHz
• Board Type: Fully Populated
• Utilized Ic / Part: HIP6601, ISL6558
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Application Note 1029
1. Transient Response with Lo = 400nH
V
(4 Turns)
O
Note that the measurement is taken without having the
C300 (1000µF) input capacitor on the board. The
transient response with 400nH output inductance is
shown in Figures 15 to 18.
V
O
I
(28A/DIV)
O
I
(28A/DIV)
O
I
IN
FIGURE 17. EXPANSION OF STEP-DOWN TRANSIENTS
V
O
FIGURE 15. TRANSIENT RESPONSE WITH DROOP
I
(28A/DIV)
O
V
O
I
IN
I
(28A/DIV)
O
FIGURE 18. TRANSIENT RESPONSE WITHOUT DROOP
FIGURE 16. EXPANSION OF STEP-UP TRANSIENTS
12
AN1029.3
July 31, 2009