The ZL2004-01 is specialized version of the ZL2004 DC/DC controller that has been optimized for high output accuracy within a given set of operating conditions. The ZL2004-01 is otherwise identical to the ZL2004 in features and functionality. The ZL2004-01 has been optimized for use with the ZL1505 MOSFET driver and discrete MOSFETs. The ZL2004-01 integrates a proprietary Digital-DC communication bus for current sharing and inter device communication. Adaptive algorithms improve light load efficiency. All operating features can be configured by simple pinstrap selection, resistor selection or through the on-board serial port. The PMBus™-compliant ZL2004-01 uses the SMBus™ serial interface for communication with other Digital-DC products or a host controller.


  • Power Conversion
  • Efficient synchronous buck controller
  • ± 0.2% VOUT set-point accuracy
  • 8.0V to 10.0V input range
  • 0.9V to 1.1V output range
  • Adaptive performance optimization algorithms
  • Fast load transient response
  • Active current sharing
  • DCR current sensing with digitally adjustable current sense range
  • RoHS compliant (5mmx5mm) QFN package
  • Power Management
  • Digital soft-start/stop
  • Precision delay and ramp-up
  • Power-good/enable
  • Voltage tracking, sequencing and margining
  • Voltage/current/temperature monitoring
  • SMBus communication (PMBus compliant)
  • Output voltage and current protection
  • Internal non-volatile memory (NVM)


  • Servers/storage equipment
  • Telecom/datacom equipment
  • Power supplies (memory, DSP, ASIC, FPGA)

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active TQFN Tube 60
Active TQFN Reel 100
Active TQFN Reel 1000

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ZL2004-01 Datasheet Datasheet PDF 446 KB
User Guides & Manuals
PMBus Interface Install Guide - Win7 x86 and x64 Manual PDF 693 KB
Application Notes & White Papers
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 KB
AN2032: NLR Configuration for DDC Products Application Note PDF 573 KB
AN2033: Intersil PMBus Command Set for Digital-DC Products Application Note PDF 1.90 MB
AN1684: Nonideality of Ground Application Note PDF 397 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
PCN16089A - Alternate assembly facility of the listed Intersil DFN / QFN packaged products Product Change Notice PDF 124 KB
PCN14010 - Alternate Manufacturing Facilities for Assembly of the Listed Intersil QFN Packaged Products - Amkor (ATP), Muntinlupa City, Philippines Product Change Notice PDF 221 KB
PMBus Conversion Software Tool Library ZIP 54.93 MB
ZLHLD Software v2.9 Library ZIP 119.19 MB
CompZL Software v1.5.1 Library ZIP 59.25 MB
PowerPilot Software GUI Library ZIP 435 KB
USB Drivers for the ZLUSBEVAL1Z (Windows 7) Library ZIP 1.75 MB
USB Drivers for the ZLUSBEVAL1Z (Windows XP/Vista) Library ZIP 166 KB
Digital-DC Frequently Asked Questions (FAQ) Other PDF 194 KB