ZL2005 datasheet(11/39 Pages) RENESAS

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ZL2005

FN6848 Rev 2.00

Page 11 of 39

February 23, 2011

ZL2005 Overview

4.1 Digital-DC Architecture

The ZL2005 is an innovative mixed-signal power con-

version and power management IC based on Zilker

Labs’ patented Digital-DC technology that provides an

integrated, high performance step-down converter for a

wide variety of power supply applications. Its unique

digital PWM loop utilizes an innovative mixed-signal

topology to enable precise control of the power conver-

sion process with no software required, resulting in a

very flexible device that is also easy to use. An extensive

set of power management functions is fully integrated

and can be configured using simple pin connections or

via the I2C/SMBus hardware interface using standard

PMBus commands. The user configuration can be saved

in an on-chip non-volatile memory (NVM), allowing

ultimate flexibility.

Once enabled, the ZL2005 is immediately ready to regu-

late power and perform power management tasks with

no programming required. The ZL2005 can be config-

ured by simply connecting its pins according to the

tables provided in this document. Advanced configura-

tion options and real-time configuration changes are

available via the I2C/SMBus interface if desired, and

continuous monitoring of multiple operating parameters

is possible with minimal interaction from a host control-

ler. Integrated sub-regulation circuitry enables single

supply operation from any supply between 3V and 14V

with no secondary bias supplies needed.

Zilker Labs provides a comprehensive set of on-line

tools and application notes to assist with power supply

design and simulation. An evaluation board is also avail-

able to help the user become familiar with the device.

This board can be evaluated as a stand-alone platform

using pin configuration settings. Additionally, a Win-

dows™-based GUI is provided to enable full configura-

tion and monitoring capability via the I2C/SMBus

interface using an available computer and the included

USB cable.

Please refer to www.zilkerlabs.com for access to the

most up-to-date documentation and the PowerPilotTM

simulation tool, or call your local Zilker Labs’ sales

office to order an evaluation kit.

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