ISL6558EVAL2 Intersil, ISL6558EVAL2 Datasheet - Page 8

• Manufacturer Part Number: ISL6558EVAL2
• Description: EVAL BOARD W/6605 DRVRS ISL6558
• Manufacturer: Intersil
• Series: Endura™r

Specifications of ISL6558EVAL2

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.35V
• Current - Output: 30A
• Voltage - Input: 4.5 ~ 5.5V
• Regulator Topology: Buck
• Frequency - Switching: 500kHz
• Board Type: Fully Populated
• Utilized Ic / Part: HIP6609, ISL6558
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

Term Definitions
∆V
I
I
I
I
I
Lo,PEAK
Q1,RMS
Q2,RMS
Lo,RMS
IN,RMS
I
ESR
Lo,PP
Istep
Fsw
IN,CAP
Cin
I
I
V
Lin
Co
I
Po
Vo
Lo
LO
PP
D
f
Io
N
IN
η
c
IN
Input Capacitance
Output Capacitance
Ratio of ON Interval of Upper FET to Single-
Channel Switching Period, Duty Cycle
Allowable Input Voltage Ripple Contributed by the
Input Capacitors
Overall ESR of Output Capacitors
System Closed-Loop Bandwidth
Per-Channel Switching Frequency
Input Current
RMS Current thru Input Capacitors
Current thru Each-Channel Inductor
Peak Current thru Each-Channel Inductor
Ripple Current thru Each-Channel Inductor
RMS Current thru Each-Channel Inductor
Overall Ripdple Current thru Output Capacitors
Output Load Current
RMS Current thru Upper FET, Q1
RMS Current thru Upper FET, Q2
Load Transient Step
Input Inductor
Inductance of Each-Channel Inductor
Number of Active Channels
Output Power
Output Efficiency
Input Voltage
Output Voltage
8
Application Note 1044
References
Intersil documents are available on the web at
http://www.intersil.com.
Appendix
1. Schematics of Reference Design and Load Transient
2. Bill of Materials and Layout of Evaluation Board.
[1] Intersil’s ISL6558 Data Sheet.
[2] Intersil’s ISL6609 Data Sheet.
[3] Intersil’s ISL6557A Data Sheet
Generator.
April 4, 2006
AN1044.2