1
User Guide 053
ISL8018EVAL3Z Evaluation Board User Guide
Description
The ISL8018EVAL3Z evaluation board is intended for use by
individuals with requirements for Point-of-Load applications
sourcing from 2.7V to 5.5V. The ISL8018EVAL3Z is used for a
complete demonstration of the performance of the
ISL8018
low
quiescent high efficiency synchronous buck regulator.
The ISL8018EVAL3Z evaluation board is a 76.2mmx76.2mm
4-layer FR4 board with 2oz copper in all layers. The complete
converter occupies 438.71mm
2
area.
Recommended Equipment
The following materials are recommended to perform testing:
• 0V to 10V power supply with at least 15A source current
capability or 5V battery
• Electronic loads capable of sinking current up to 10A
• Digital Multimeters (DMMs)
• 100MHz quad-trace oscilloscope
• Signal generator
Key Features
• High efficiency synchronous buck regulator with up to 97%
efficiency
• ±10% output voltage margining
• Adjustable current limit
• Start-up with prebiased output
• Internal soft-start - 1ms or adjustable
• Soft-stop output discharge during disabled
• Adjustable frequency from 500kHz to 4MHz - default at 1MHz
• External synchronization up to 4MHz - master to slave phase
shifting capability
References
ISL8018
datasheet
Ordering Information
PART NUMBER
DESCRIPTION
ISL8018EVAL3Z
Evaluation Board
FIGURE 1. BLOCK DIAGRAM
VIN
PG
PHASE
PGND
SGND
VOUT
GND
VIN
GND
ISL8018
EPAD
SYNCOUT
PHASE
EN
ISET
FB
SYNCIN
FS
SS
COMP
VSET
October 26, 2015
UG053.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Copyright Intersil Americas LLC 2015. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
