DC-DC｜Evaluation
Switching Regulator Basics
2015.12.17
Points of this article
・ In order to evaluate the performance of a switching regulator, we need to understand the properties and basics of the switching regulator.
・ To facilitate the evaluation process, it is useful to be able to visualize current and voltage waveforms in addition to knowing the underlying operating principles and mechanisms.
In order to understand and evaluate the characteristics of the switching regulator, it is important to know the fundamentals of the switching regulator.
In this section, we review the types of switching; the operating principles of the step-down converter; differences between synchronous and asynchronous controls which represent major control methods; boot strap, which is a mechanism for improving efficiency; feedback control method for output regulation, that is, a method that governs the operation of the regulator; PWM and PFM which are output voltage regulation methods, and IC Standards and power supply properties which represent critical characteristics.
【Download Documents】Characteristics and Evaluation Method of Switching Regulators
This handbook reviews the basics of switching regulators and explains how to understand and evaluate the characteristics of switching regulators necessary for design optimization, along with reading and understanding the datasheets of switching regulator ICs.
List of articles related to the「Switching Regulator Basics」
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Basic of Linear Regulators and Switching Regulators
Basic studies for linear regulators and switching regulators as a DC-DC converter.
DC-DC
- Basic
- Design
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Evaluation
- Overview of Characteristics and Evaluation Method of Switching Regulators
- How to Read Power Supply IC Datasheets: Cover, Block Diagram, Absolute Maximum Ratings and Recommended Operating Conditions
- Evaluating a Switching Regulator: Output Voltage
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Introduction
- Definitions and Heat Generation
- Losses in Synchronous Rectifying Step-Down Converters
- Conduction Losses in Synchronous Rectifying Step-Down Converters
- Switching Losses in Synchronous Rectifying Step-Down Converters
- Dead Time Losses in Synchronous Rectifying Step-Down Converters
- Controller IC Power Consumption Losses in a Synchronous Rectifying Step-Down Converter
- Gate Charge Losses in a Synchronous Rectifying Step-Down Converter
- Conduction Losses due to the Inductor DCR
- Example of Power Loss Calculation for a Power Supply IC
- Simplified Method of Loss Calculation
- Heat Calculation for Package Selection: Example 1
- Heat Calculation for Package Selection: Example 2
- Loss Factors
- Matters to Consider When Studying Miniaturization by Raising the Switching Frequency
- Important Matters when Studying High Input Voltage Applications
- Important Matters when Studying Large Output Currents Applications: Part 1
- Important Matters when Studying Large Output Currents Applications: Part 2
- Summary
- Application
- Product Information
- FAQ