ZL2103: 3A Digital-DC Synchronous Step-Down DC/DC Converter

The ZL2103 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.

The ZL2103 can provide an output voltage from 0.54V to 5.5V (with margin) from an input voltage between 4.5V and 14V. Internal low rDS(ON) synchronous power MOSFETs enable the ZL2103 to deliver continuous loads up to 3A with high efficiency. An internal Schottky bootstrap diode reduces discrete component count. The ZL2103 also supports phase spreading to reduce system input 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 ZL2103 uses the PMBus™ protocol for communication with a host controller and the Digital-DC bus for interoperability between other Zilker Labs devices.

Key Features
  • Integrated MOSFET switches
  • 3A continuous output current
  • ±1% output voltage accuracy
  • Snapshot™ parametric capture
  • I2C/SMBus interface, PMBus compatible
  • Internal non-volatile memory (NVM)
Applications
  • Telecom, Networking, Storage equipment
  • Test and Measurement equipment
  • Industrial control equipment
  • 5V and 12V distributed power systems
Typical Diagram
Application Notes
TitleTypeUpdatedSizeOther Languages
AN2033: Intersil PMBus Command Set for Digital-DCâ„¢ ProductsPDF21 Mar 2016638 KB
AN2035: Compensation Using CompZLPDF13 Nov 2014603 KB
AN2010: Thermal and Layout Guidelines for Digital-DC ProductsPDF13 Nov 20141008 KB
Datasheets
TitleTypeUpdatedSizeOther Languages
ZL2103 DatasheetPDF02 Dec 2014643 KB
User Guides
TitleTypeUpdatedSizeOther Languages
PMBus Interface Install Guide - Win7 x86 and x64PDF20 Nov 2014786 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
ZL2103ALAF36 Ld QFN0.094362260RoHS
ZL2103ALAFT36 Ld QFN T+R0.094362260RoHS
ZL2103ALAFTK36 Ld QFN T+R0.094362260RoHS
Datasheet
ZL2103 Datasheet 02 Dec 2014
Other
AN2010: Thermal and Layout Guidelines for Digital-DC Products 13 Nov 2014
AN2033: Intersil PMBus Command Set for Digital-DCâ„¢ Products 21 Mar 2016
AN2035: Compensation Using CompZL 13 Nov 2014
Digital-DC Frequently Asked Questions (FAQ) 17 Nov 2014
PMBus Interface Install Guide - Win7 x86 and x64 20 Nov 2014
36 Ld QFN T+R ZL2005P
Five Easy Steps to Create a Multi-Load Power Solution 30 Jan 2017
ZL2103