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Application Note 1517
ZL2008EVAL1Z Evaluation Board
Description
The ZL2008 is an integrated mixed-signal power
conversion and management IC that combines an
efficient step-down DC/DC converter with key power and
thermal management functions in a single package. The
ZL2008 incorporates current sharing and adaptive
efficiency-optimization algorithms to provide a flexible,
efficient power IC building block.
The ZL2008EVAL1Z platform is a 4-layer board
demonstrating a 15A synchronous buck converter.
Sequencing, tracking, margining, plus other features can
be evaluated using this board.
A USB to SMBus adapter board can be used to connect
the eval board to a PC. The PMBus command set is
accessed by using the Zilker Labs PowerNavigator?
evaluation software from a PC running Microsoft
Windows.
Features
? 15A synchronous buck converter
? Optimized for small circuit footprint and dynamic
response
? Configurable through SMBus
? Onboard enable switch
? Power good indicator
Target Specifications
? V IN = 12V
? V OUT = 1.2V/15A (20A max)
? f sw = 615kHz
? Efficiency: 86% at 10A
? Output ripple: ±1%
? Dynamic response: ±3%
(50%-100%-50% load step, di/dt = 2.5A/ μ s)
? Board temperature: +25°C
V IN
EN
S Y NC
ZL2008
DDC
S MB us
V OUT
ENABLE
SW 1
PINSTRAP
VTRK
S Y NC
DDC
J10
J11
S Y NC
DDC
S MB us
TRA CK
FIGURE 1. ZL2008EVAL1Z BLOCK DIAGRAM
PG
S MB us
TRA CK
PG
March 15, 2010
AN1517.1
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2009, 2010. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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