The ZL2105 is an innovative power conversion and management IC that combines an integrated synchronous step-down DC-DC converter with key power management functions in a small package, resulting in a flexible and integrated solution. Zilker Labs Digital-DC™ technology enables unparalleled power management integration while delivering industry-leading performance in a tiny footprint. The ZL2105 can provide an output voltage from 0. 6 V to 5. 5 V from an input voltage between 4. 5 V and 14 V. Internal 4. 5 A low RDS(ON) synchronous power MOSFETs enable the ZL2105 to deliver continuous loads up to 3 A with high efficiency, and an internal Schottky bootstrap diode further reduces discrete component count. The ZL2105 also supports phase spreading for reduced system capacitance. Power management features such as digital soft-start delay and ramp, sequencing, tracking, and margining can be configured by simple pin-strapping or through an on- chip serial port. The ZL2105 uses standard PMBus™ protocol for communicating with other devices to provide intelligent system power management.


  • Power Conversion
  • High efficiency
  • 3 A continuous output current
  • Integrated MOSFET switches
  • 4.5 V to 14 V input range
  • 0.54 V to 5.5 V output range (with margin)
  • ±1% output voltage accuracy
  • 200 kHz to 2 MHz switching frequency
  • Supports phase spreading
  • Small footprint (6 x 6 mm QFN package)
  • Power Management
  • Digital soft start/stop
  • Precision delay and ramp-up
  • Power good/enable
  • Voltage tracking, sequencing, and margining
  • Output voltage/current monitoring
  • Thermal monitor w/ shutdown
  • Non-volatile memory
  • I2C/SMBus™ communication bus
  • PMBus compatible


  • Telecom and storage equipment
  • Digital set-top box
  • Industrial supplies
  • 12 V distributed power systems
  • Point of load converters


器件号 Part Status Pkg. Type Carrier Type MOQ Buy Sample
Last Time Buy QFN Tube 50
Last Time Buy QFN Reel 100
Last Time Buy QFN Reel 1000


文档标题 language 类型 文档格式 文件大小 日期
star ZL2105 Datasheet 数据手册 PDF 1.65 MB
PMBus Interface Install Guide - Win7 x86 and x64 手册 - 硬件 PDF 693 KB
ZL2105EV2 User Guide 指南 PDF 1.26 MB
ZLUSBREF01 User Guide 手册 - 开发工具 PDF 704 KB
应用指南 & 白皮书
Five Easy Steps to Create a Multi-Load Power Solution 白皮书 PDF 846 KB
AN2018: The ZL_PMBus API Programmer's Guide 应用文档 PDF 805 KB
AN2016: Digital-DC Control Loop Compensation 应用文档 PDF 621 KB
AN2013: Zilker Labs PMBus Command Set 应用文档 PDF 441 KB
AN2014: System Design Using Digital-DC Devices 应用文档 PDF 589 KB
AN2023: Voltage Tracking with the ZL2005 应用文档 PDF 262 KB
AN2028: Loading Configuration Files in a Manufacturing Environment 应用文档 PDF 528 KB
AN2022: Autonomous Sequencing Technology 应用文档 PDF 232 KB
AN2010: Thermal and Layout Guidelines for Digital-DC Products 应用文档 PDF 1.43 MB
AN2030: Configuring a Device via the SMBus 应用文档 PDF 686 KB
AN2026: PowerNavigator User Guide 应用文档 PDF 1.08 MB
AN2031: Writing Configuration Files for Intersil Digital Power 应用文档 PDF 1.01 MB
AN2027: CompZL User Guide 应用文档 PDF 559 KB
AN2029: ConfigZL User Guide 应用文档 PDF 306 KB
AN2036: ZLHLD Generator User Guide 应用文档 PDF 213 KB
AN1681: Grounding Techniques 应用文档 PDF 509 KB
AN1684: Nonideality of Ground 应用文档 PDF 397 KB
PLC21035 - End of Life Notice Product Life Cycle Notice PDF 1.17 MB
PCN16089A - Alternate assembly facility of the listed Intersil DFN / QFN packaged products 产品变更通告 PDF 124 KB
PA14042 - Minimum Line Quantity Change Product Advisory PDF 363 KB
PCN11032 - Data Sheet Specification Change for Intersil Product ZL2105ALNF* 产品变更通告 PDF 88 KB
PCN11018 - Alternate Manufacturing Sites for Intersil ZL2005*, ZL2006*, ZL2008, ZL2105*, and ZL6100* Products - Jazz Semiconductor Newport Beach, CA and STATS ChipPAC Malaysia 产品变更通告 PDF 170 KB
PCN11007 - Packing Method Change for Intersil ZLxxxx QFN Packaged Products 产品变更通告 PDF 131 KB
PCN10048 - Alternate Manufacturing Site for the Listed Intersil Pb-Free QFN Packaged Products - STATS ChipPAC Malaysia 产品变更通告 PDF 73 KB
Digital-DC Frequently Asked Questions (FAQ) 其他 PDF 194 KB


文档标题 language 类型 文档格式 文件大小 日期
PMBus Conversion Software Tool ZIP 54.93 MB
ZLHLD Software v2.9 ZIP 119.19 MB
CompZL Software v1.5.1 ZIP 59.25 MB
PowerPilot Software GUI ZIP 435 KB
USB Drivers for the ZLUSBEVAL1Z (Windows 7) ZIP 1.75 MB
USB Drivers for the ZLUSBEVAL1Z (Windows XP/Vista) ZIP 166 KB


器件号 文档标题 类型 Company
ZL2105EVK2 3A Integrated Digital DC/DC Converter Evaluation Board 评估 Renesas
ZLUSBEVAL1Z USB to SMBus Adapter and Cable 评估 Renesas