Solutions Search - LTC3880 - Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management
Linduino PSM
Mar 12th 2015
While many engineers use a dongle and tools to configure Power System Management devices via PMBus, a growing number of designs are adding Board Management Controllers, or connecting their PMBus to an existing microcontroller or application processer. At LTC, the dongle/tool option is comprised of a DC1613 and LTpowerPlay, and ...
LTC Power System Management Tips for Success
Jul 28th 2014
Here are some tips to make sure you get the most out of Linear Technology's Power System Management (PSM) products by using them the way they were intended. Follow these rules to stay out of trouble. Rule #1: When Sharing is Good
a) Always connect SHARE_CLK pins together. This keeps all LTC PSM devices on a common ...
High Performance Single Phase DC/DC Controller with Power System Management
Aug 1st 2013
Design Note 517: Introduction
The LTC®3883 is a single phase synchronous stepdown DC/DC controller featuring a PMBus interface for digital control and monitoring of key regulator parameters. It has integrated MOSFET gate drivers and can function either standalone or in a digitally managed system with other Linear Technology ...
Fault Management Architecture
Jul 11th 2013
I recently had some enquiries into using PMBus communication to manage faults vs. built-in fault management. The question was two fold: what is the impact of using PMBus to make fault-off decisions, and what can be done to build system wide fault logs?
Before I dig into these two uses of PMBus, let’s consider what is ...
Experts Find There is More Analog in Digital Power Than Previously Thought
Feb 13th 2013
Last week at DesignCon there was talk of 100GigaBit SerDes: 4 channels of 25GigiBit. We all know that bits and frames fly over the wire, and at first glance these are digital communication systems. Yet Power Integrity problems involve Power Distribution Network (PDN) impedance over a large frequency range (DC-10Ghz) due to ...
Digital Power: Why Should I Care About Accuracy?
Dec 17th 2012
We looked at why we care about the digital side of Digital Power in the last post, but what about the analog side of digital power? Does the accuracy at the other end of the Digital Power device matter? It turns out, it matters more than most people realize.
An example error budget
Let’s use an actual IC specification ...
Digital Point of Load Converters vs. Digital Managers
Sep 1st 2012
When should you use a Point of Load Converter (POL) with PMBus, and when should you use a Digital Manager with old school POLs? In this post I will provide some heuristics for making this choice.
So as to not mislead, my goal is modest: to provide enough intuition to make a first pass choice, that becomes an area to explore ...
Digital Power Management
Jul 31st 2012
Many Digital Power products use the industry standard PMBus to enable system architects to manage and control multi-rail power architectures. However, many people are uncertain how to apply PMBus to solve real world problems. Over the course of the coming months I am going to blog on different topics related to the practical ...
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