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Murata DC-DC Converter
Figure 1 – Orderable Part Numbers From The LXDC2HL Series
This blog will briefly discuss the LXDC2HL18A-052 from Murata. This device is a low power DC step-down converter. The output for this particular model is 1.8 volts with a maximum output current of 600 mA. This device is meant to help extend the life of batteries and help with systems that need a tight voltage tolerance with its ability to maintain a 1.8 volt output within 2% over the full current range. If powering a microcontroller or FPGA that requires a very specific voltage level, this is a good option to start looking at. There are several other DC-DC converters in this series giving voltage ranges from 1 volt to 3.3 volts. Figure 1 shows a table with the orderable part numbers for the series. In addition to these values, the output voltage can be set in 50 mV steps from 0.8 volts up to 4.0 volts. Talk to someone in the Applications Engineering department at the phone number at the bottom of the page for more details.
This device uses PFM and PWM modes to help with efficiency. At smaller loads, the devices use PFM and at larger loads it transitions to PWM. The transition happens somewhere between 100-200 mA. The input voltage range for this device is 2.3 volts to 5.5 volts, making it an excellent selection for battery operated systems. This product is a great candidate for any product that needs an extremely tight voltage tolerance. The device has an inductor-embedded ferrite substrate that helps to reduce noise, making it perfect for applications where this is an issue. More information about this product can be found on EEWiki and feel free to ask any questions in the TechForum.
关于此作者
Pat Sagsveen 是 DigiKey 的助理应用工程技术员，负责协助客户寻找更好的利用新技术和新零件的方式来完成项目。他拥有俾斯麦州立大学电子与通信应用科学学士学位，2016 年毕业后即加入 DigiKey。Pat 对放大器特别感兴趣，业余花了很多时间制作和摆弄各种放大器，其中包括他制作的 3 管吉它放大器。
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