Intersil ISL8026EVAL3Z User Manual

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 regulator.
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
2
0.22in .

Specifications

I
OUT
PART (MAX) f RANGE
SW
NUMBER (A) (MHz)
ISL8026 Programmable
0.5 to 4MHz
6
ISL8026A Programmable
1 to 4MHz
NOTES:
1. The Evaluation Boards' default configuration are V
ISL8026EVAL3Z (f = 1MHz) and ISL8026AEVAL3Z (f
SW
2. V is 0.6V.
REF
VIN
GND
June 19, 2015
UG033.0
V V
IN OUT
RANGE RANGE PART SIZE
(V) (V) (2mm)
2.5 to 0.6 to
3x3
5.5 5.5
= 1.8V for
OUT
= 2MHz).
SW
ISL8026
VIN
VIN
EPAD
PG
SYNC
FIGURE 1. BLOCK DIAGRAM
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774

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
Ordering Information
PART NUMBER
ISL8026EVAL3Z
ISL8026AEVAL3Z
PGND
PGND
PGND/
SGND
FB
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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.
User Guide 033
DESCRIPTION
Evaluation Board For ISL8026
Evaluation Board For ISL8026A
VOUT
GND