MAX8664 Low-Cost, Dual-Output, Step-Down Controller with Fast Transient Response
●The MAX8664 dual-output PWM controller is a low-cost,high-performance solution for systems requiring dual power supplies. It provides two individual outputs that operate 180° out-of-phase to minimize input current ripple, and therefore, capacitance requirements. Built-in drivers are capable of driving external MOSFETs to deliver up to 25A output current from each channel.The MAX8664 operates from a 4.5V to 28V input volt-age source and generates output voltages from 0.6V up to 90% of the input voltage on each channel. Total output regulation error is less than ±0.8% over load,line, and temperature.
●The MAX8664 operates with a constant switching fre-quency adjustable from 100kHz to 1MHz. Built-in boost diodes reduce external component count. Digital soft-start eliminates input inrush current during startup. The second output has an optional external REFIN2, facili-tating tracking supply applications. Each output is capable of sourcing and sinking current, making the device a great solution for DDR applications.
●The MAX8664 employs Maxim’s proprietary peak volt-age-mode control architecture that provides superior transient response during either load or line transients.This architecture is easily stabilized using two resistors and one capacitor for any type of output capacitors. Fast transient response requires less output capacitance,consequently reducing total system cost. The MAX8664B latches off both controllers during a fault condition, while the MAX8664A allows one controller to continue to func-tion when there is a fault in the other controller.
■Features
●±0.8% Output Accuracy Over Load and Line
●Operates from a Single 4.5V to 28V Supply
●Simple Compensation for Any Type of Output Capacitor
●Internal 6.5V Regulator for Gate Drive
●Integrated Boost Diodes
●Adjustable Output from 0.6V to 0.9 x VIN
●Digital Soft-Start Reduces Inrush Current
●100kHz to 1MHz Adjustable Switching
●180° Out-of-Phase Operation Reduces Input Ripple Current
●Overcurrent and Overvoltage Protection
●External Reference Input for Second Controller
●Prebiased Startup Operation
|
MAX8664 、 MAX8664B 、 MAX8664AEEP+ 、 MAX8664BEEP+ 、 MAX8664A |
|
|
Low-Cost, Dual-Output, Step-Down Controller with Fast Transient Response 、 dual-output PWM controller |
|
|
[ Desktop and Notebook PCs ][ Graphic Cards ][ ASIC/CPU/DSP Power Supplies ][ Set-Top Box Power Supply ][ Printer Power Supply ][ Network Power Supply ][ POL Power Supply ] |
|
|
Datasheet |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
QSOP |
|
|
English Chinese Chinese and English Japanese |
|
|
4/07 |
|
|
Rev 0 |
|
|
19-0796 |
|
|
361 KB |
- +1 Like
- Add to Favorites
Recommend
- How to Maximize Energy Efficiency with EFM32 Gecko MCUs?
- How to Maximize Bluetooth® Interoperability Between IoT Devices and Smartphones？
- ROHM Establishes Ultra-High-Speed Control IC Technology that Maximizes the Performance of GaN Devices
- Maximize Efficiency and Flexibility with a Modular Power Supply for Your PC
- Silicon Labs’ Product Portfolio Maximizes New Bluetooth 5.4 Features, Facilitating IoT Applications Development
- Maximize Network Performance with 4G LTE Modem Advanced Automation Terminal
- ROHM Developed a New Ultra-High-Speed Gate Driver IC BD2311NVX-LB Maximizing the Performance of GaN Devices
- Tips to Maximize Visibility of Outdoor LED Display
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
