The MAXREFDES1181 is centered around the MAX17501 ultra small, high-efficiency, high-voltage, synchronous stepdown DC-DC converter with integrated MOSFETs. This design provides a -5V output and up to 150mA of load current with an input voltage range of 18V to 30V. Unlike a traditional design, this reference design is configured to work in an inverting buck-boost topology to produce negative output voltage from positive input voltage.
Industrial control equipment such as programmable logic controllers, I/O modules, mass flow controllers, and various other sensors and supporting systems use analog components like amplifiers and multiplexers that operate on negative supply voltage. The MAXREFDES1181 is designed to demonstrate the operation and principles on how to use the MAX17501 to provide a negative supply voltage.
This board is not available for purchase.
This document describes the MAXREFDES1181 variant on the MAXREFDES1174 hardware shown in Figure 1. It provides a detailed, systematic technical guide for the design of the MAXREFDES1181 using the MAX17501 synchronous step-down DC-DC converter for applications that require negative supply voltage. See the MAX17501 data sheet for device operation details. The power supply has been built and tested, details of which follow later in this document.
All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.
It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.
Supported by EEWorld Datasheet
EEWorld
subscription
account
EEWorld
service
account
Automotive
development
community
Robot
development
community
About Us Customer Service Contact Information Datasheet Sitemap LatestNews
Room 1530, 15th Floor, Building B,
No.18 Zhongguancun Street,
Haidian District,
Beijing, Postal Code: 100190
China
Telephone: 008610 8235 0740
京公网安备 11010802033920号
S4A_1
