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User Guide 033
ISL8026xEVAL3Z Evaluation Board User Guide
Description
The ISL8026EVAL3Z and ISL8026AEVAL3Z are intended for use
by customers with requirements for point-of-load applications
sourcing from 2.5V to 5.5V. The ISL8026EVAL3Z and
ISL8026AEVAL3Z are used to demonstrate the performance of
the ISL8026
and ISL8026A, low quiescent high efficiency
synchronous buck regulators.
The ISL8026 and ISL8026A are offered in a 3mmx3mm
16 Ld TQFN package with 1mm maximum height. The
complete area that the converter occupies can be as small as
141.935mm
2
.
Key Features
• High efficiency synchronous buck regulator with up to 95%
efficiency
• 1% reference accuracy over load/line/temperature
(-40°C to +85°C)
• 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
(2MHz for ISL8026A)
• External synchronization up to 4MHz
• Negative OC protection
References
ISL8026, ISL8026A Datasheet
Specifications
PART
NUMBER
I
OUT
(MAX)
(A)
f
SW
RANGE
(MHz)
V
IN
RANGE
(V)
V
OUT
RANGE
(V)
PART SIZE
(2mm)
ISL8026
6
Programmable
0.5 to 4
2.5 to
5.5
0.6 to
5.5
3x3
ISL8026A Programmable
1to4
NOTES:
1. The evaluation boards’ default configuration are V
OUT
= 1.8V for
ISL8026EVAL3Z (f
SW
= 1MHz) and ISL8026AEVAL3Z (f
SW
=2MHz).
2. V
REF
is 0.6V.
Ordering Information
PART NUMBER DESCRIPTION
ISL8026EVAL3Z Evaluation Board For ISL8026
ISL8026AEVAL3Z Evaluation Board For ISL8026A
FIGURE 1. BLOCK DIAGRAM
VIN
VIN
PG
SYNC
PGND
FB
PGND
PGND/
SGND
VOUT
GND
VIN
GND
ISL8026
EPAD
EN
FS
SS
COMP
VIN
PHASE
PHASE
PHASE
July 15, 2016
UG033.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
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