ZL2004: Adaptive Digital DC-DC Controller with Current Sharing

The ZL2004 is a digital DC-DC controller designed to work with the ZL1505 MOSFET driver IC. Current sharing allows multiple devices to be connected in parallel to source loads with very high current demands. Adaptive performance optimization algorithms improve power conversion efficiency across the entire load range. Zilker Labs
Digital-DC™ technology enables a blend of power conversion performance and power management features.

The ZL2004 is designed to be a flexible building block for DC power and can be easily adapted to designs ranging from a single-phase power supply operating from a 4.5 V input to a multi-phase supply operating from a 12V input. The ZL2004 eliminates the need for complicated power supply managers as well as numerous external discrete components.

All operating features can be configured by simple pin-strap/resistor selection or through the SMBus™ serial interface. The ZL2004 uses the PMBus™ protocol for communication with a host controller and the Digital-DC bus for communication between other Zilker Labs devices.

Key Features
  • Power Conversion
  • Efficient synchronous buck controller
  • Adaptive performance optimization algorithms
  • 4.5 V to 14 V input range
  • 0.54 V to 4 V output range (with margin)
  • ±1% VOUT set-point accuracy
  • Fast load transient response
  • Current sharing and phase interleaving
  • Digitally adjustable current sense range
  • Snapshot™ parameter capture
  • RoHS compliant (5 x 5 mm) 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)
Applications
  • Servers/storage equipment
  • Telecom/datacom equipment
  • Power supplies (memory, DSP, ASIC, FPGA)
Typical Diagram
Application Notes
TitleTypeUpdatedSizeOther Languages
AN2030: Configuring a Device via the SMBusPDF01 Apr 2016345 KB
AN2033: Intersil PMBus Command Set for Digital-DCâ„¢ ProductsPDF21 Mar 2016638 KB
AN2031: Writing Configuration FilesPDF10 Aug 2015663 KB
AN2040: Power Design with Digital-DC DevicesPDF11 Dec 2014977 KB
AN2037: Zilker Labs System Design ChecklistPDF11 Dec 2014117 KB
AN2036: ZLHLD Generator User GuidePDF11 Dec 2014213 KB
AN2034: Current Sharing with Digital-DC DevicesPDF11 Dec 2014926 KB
AN2032: NLR Configuration for DDC ProductsPDF11 Dec 2014487 KB
AN2029: ConfigZL User GuidePDF11 Dec 2014307 KB
AN2028: Loading Configuration Files in a Manufacturing EnvironmentPDF11 Dec 2014427 KB
AN2027: CompZL User GuidePDF11 Dec 2014559 KB
AN2026: PowerNavigator User GuidePDF11 Dec 20141.08 MB
AN2018: The ZL_PMBus API Programmers GuidePDF11 Dec 2014100 KB
AN2015: Current Protection and MeasurementPDF11 Dec 2014235 KB
AN2035: Compensation Using CompZLPDF13 Nov 2014603 KB
AN2010: Thermal and Layout Guidelines for Digital-DC ProductsPDF13 Nov 20141008 KB
Datasheets
TitleTypeUpdatedSizeOther Languages
ZL2004 DatasheetPDF19 Nov 20141.21 MB
User Guides
TitleTypeUpdatedSizeOther Languages
ZLUSBSREF01DSR1_0 User GuidePDF25 Aug 2015205 KB
PMBus Interface Install Guide - Win7 x86 and x64PDF20 Nov 2014786 KB
ZL2004EV1 User GuidePDF13 Nov 2014740 KB
White Papers
TitleTypeUpdatedSizeOther Languages
Five Easy Steps to Create a Multi-Load Power SolutionPDF30 Jan 2017502 KB
Miscellaneous
TitleTypeUpdatedSizeOther Languages
Digital-DC Frequently Asked Questions (FAQ)PDF17 Nov 2014194 KB
Order Information
Part NumberPackage TypeWeight(g)PinsMSL RatingPeak Temp (°C)RoHS Status
ZL2004ALNNT32 Ld QFN T+R0.066322260RoHS
ZL2004ALNNT132 Ld QFN T+R0.066322260RoHS
ZLUSBEVAL1ZN/ARoHS
ZL2004EVK1N/A
ZL2004 Datasheet 19 Nov 2014
AN2030: Configuring a Device via the SMBus 01 Apr 2016
AN2033: Intersil PMBus Command Set for Digital-DCâ„¢ Products 21 Mar 2016
AN2031: Writing Configuration Files 10 Aug 2015
AN2040: Power Design with Digital-DC Devices 11 Dec 2014
AN2037: Zilker Labs System Design Checklist 11 Dec 2014
AN2036: ZLHLD Generator User Guide 11 Dec 2014
AN2034: Current Sharing with Digital-DC Devices 11 Dec 2014
AN2032: NLR Configuration for DDC Products 11 Dec 2014
AN2029: ConfigZL User Guide 11 Dec 2014
AN2028: Loading Configuration Files in a Manufacturing Environment 11 Dec 2014
AN2027: CompZL User Guide 11 Dec 2014
AN2026: PowerNavigator User Guide 11 Dec 2014
AN2018: The ZL_PMBus API Programmers Guide 11 Dec 2014
AN2015: Current Protection and Measurement 11 Dec 2014
AN2035: Compensation Using CompZL 13 Nov 2014
AN2010: Thermal and Layout Guidelines for Digital-DC Products 13 Nov 2014
ZLUSBSREF01DSR1_0 User Guide 25 Aug 2015
PMBus Interface Install Guide - Win7 x86 and x64 20 Nov 2014
ZL2004EV1 User Guide 13 Nov 2014
Five Easy Steps to Create a Multi-Load Power Solution 30 Jan 2017
Digital-DC Frequently Asked Questions (FAQ) 17 Nov 2014