MicroPower Direct’s 1W DC-DC Converters Geared for Board-level Power Distribution

January 15, 2020 by Cabe Atwell

The ML100E series offers 41 standard models with varying VDC inputs and output ranges along with short circuit protection and a wide range of temperature tolerances.

Power conversion hardware manufacturers MicroPower Direct have released a new series of low-cost SMT DC-DC converters. The device offers 1W of output power and provides short circuit protection. The models come with single and dual outputs.



The ML100E comes with one or two outputs. Image (modified) used courtesy of MicroPower Direct

MicroPower Direct claims that these devices are specifically built for board-level power distribution necessitating automated assembly. The devices are designed in a compact package with high-performance features and a wide range of temperature tolerances.


VDC Inputs and Outputs

According to the manufacturer, there are 41 standard models in the 1W ML100E series. These models operate from 3.3, 5, 12, and 24 VDC inputs. They also provide outputs of 3.3, 5, 9, 12, 15, 24, ±5, ±9, ±12, ±15, or ±24 VDC

Simple connection of ML100xE series

Simple connection of ML100xE series. Image used courtesy of (PDF) MicroPower Direct

The (PDF) ML100E series of DC-DC converters offer circuit protection have an input/output isolation of 1,500 VCD. These devices are said to operate with 85% efficiency and operate over a temperature range of -40°C to +105°C. It should also be noted that the devices are cooled by free-air convection and as such, no heat sink is needed.

The isolation of the DC-DC converters is rated at 1.5kV. MicroPower Direct claims that the MTBF of the ML100E series (per MIL HDBK 217F) is greater than 3.5 Mhours.


Physical Parameters

The ML100E series comes packed in a miniature SMT enclosure with an industry-standard pinout. All models are available on tape/reel for use with Pic-and-Place (P&Ps) automated machines. 

The manufacturer has also assured that all models are RoHS compliant and EN 62368 approved. They meet the requirements for IPC/JEDEC reflow soldering as well.


Reflow solder settings of ML100E

Reflow solder settings of ML100E. Image used courtesy of (PDF) MicroPower Direct

MicroPower Direct states their new DC-DC converters are a useful choice for a myriad of applications that require reliable field operation, a compact footprint, and low cost.



What are your thoughts on automated assembly when it comes to board-level power distribution? Share your thoughts in the comments below.