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ZL2005P Datasheet(PDF) 10 Page - Intersil Corporation |
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ZL2005P Datasheet(HTML) 10 Page - Intersil Corporation |
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10 / 40 page  10 FN6849.0 February 18, 2009 4 ZL2005P Overview 4.1 Digital-DC Architecture The ZL2005P is an innovative mixed-signal power conversion 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 conversion 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 inter- face using standard PMBus commands. The user con- figuration can be saved in an on-chip non-volatile memory (NVM), allowing ultimate flexibility. Once enabled, the ZL2005P is immediately ready to regulate power and perform power management tasks with no programming required. The ZL2005P can be configured by simply connecting its pins according to the tables provided in this document. Advanced con- figuration 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 controller. 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 available to help the user become familiar with the device. This board can be evaluated as a stand-alone platform using pin configuration settings. Addition- ally, a Windows™-based GUI is provided to enable full configuration 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. 4.2 ZL2005 - ZL2005P By default, the ZL2005P is configured as a standard ZL2005 device. The main differences between the ZL2005P config- ured as a ZL2005P and the initial ZL2005 are the fol- lowing: • TACH pin is not used (reserved for ZL2005P POLA configuration). • VADJ pin to adjust voltage through an external resistor, similar to POLA method. • Additional configuration option for Synchroniza- tion. • DEFAULT STORE only ZL2005P |
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