ABB Dual Output MicroDLynx™ DC-DC Power Modules

ABB Digital Dual Output MicroDLynx™ DC-DC Power Modules are non-isolated DC-DC converters that can deliver up to 2 × 12A of output current. These modules operate over a wide range of input voltage (VIN = 4.5VDC to 14.4VDC) and provide precisely regulated output voltages from 0.51VDC to 5.5VDC, programmable via an external resistor and PMBus control. MicroDLynx power modules feature a digital interface using the PMBus protocol, remote On/Off, adjustable output voltage, and over-current and over-temperature protection. The PMBus interface supports a range of commands to both control and monitor the modules. The modules also include a Tunable Loop™ feature that allows the user to optimize the dynamic response of the converter to match the load with a reduced amount of output capacitance, leading to savings on cost and PWB area. Dual output MicroDLynx modules are ideal for use in a variety of applications, including distributed power architectures, intermediate bus voltage applications, telecommunications equipment, and more.


  • 2 x 12A output current
  • Wide input voltage range (4.5VDC to 14.4VDC)
  • Each output voltage programmable from 0.6VDC to 5.5VDC via an external resistor, digitally adjustable down to 0.51VDC
  • Small size of 20.32mm x 11.43mm x 8.5mm (0.8" x 0.45" x 0.335")
  • Wide operating temperature range of -40°C to +85°C
  • Digital interface through the PMBus™ protocol
  • Tunable Loop™ to optimize dynamic output voltage response
  • Power Good signal for each output
  • Fixed switching frequency with the capability of external synchronization
  • 180° out-of-phase to reduce input ripple
  • Output overcurrent protection (non-latching)
  • Output overvoltage protection
  • Over-temperature protection
  • Remote On/Off
  • Ability to sink and source current
  • Start-up into a pre-biased output
  • Cost-efficient open frame design
  • Compliant to RoHS II EU "Directive 2011/65/EU"
  • Compatible in a Pb-free or SnPb reflow environment
  • Compliant to REACH Directive (EC) No 1907/2006
  • Compliant to IPC-9592 (September 2008), Category 2, Class II
  • UL 60950-1 2nd Ed. Recognized, CSA C22.2 No. 60950-1-07 Certified, and VDE (EN60950-1 2nd Ed.) Licensed
  • ISO 9001 and ISO 14001 certified manufacturing facilities


  • Distributed power architectures
  • Intermediate bus voltage applications
  • Telecommunications equipment
  • Servers and storage applications
  • Networking equipment
  • Industrial equipment


  • Input voltage range
    • -0.3V to 15V continuous
    • 4.5VDC to 14.4VDC operating
  • Temperature range
    • -40°C to +85°C operating
    • -55°C to +125°C storage
  • -0.3V to 3.6V CLK, DATA, SYNC
  • -0.3V to 7V VS+1, VS+2, SMBALERT#
  • 23ADC maximum input current
  • 14mA input standby current
  • 1A2s inrush transient
  • -68dB input ripple rejection
  • 0.5VDC remote sense range
  • 500kHz switching frequency
  • 6Arms output short-circuit current

Block Diagram

Block Diagram - ABB Dual Output MicroDLynx™ DC-DC Power Modules
Published: 2014-03-20 | Updated: 2022-03-11