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MP2147 Fiches technique(PDF) 1 Page - Monolithic Power Systems |
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MP2147 Fiches technique(HTML) 1 Page - Monolithic Power Systems |
1 / 19 page MP2147 5.5V, 4A, 1.2MHz, High-Efficiency, 40μA IQ Constant On-Time Synchronous, Step-Down Switcher MP2147 Rev. 1.1 www.MonolithicPower.com 1 6/8/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. The Future of Analog IC Technology DESCRIPTION The MP2147 is a monolithic, step-down, switch- mode converter with internal power MOSFETs. It can achieve up to 4A continuous output current from a 2.8V-to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated to as low as 0.6V. Constant-on-time control provides a fast transient response and eases loop stabilization. Fault condition protections include cycle-by-cycle current limiting and thermal shutdown. The MP2147 is available in a small QFN2×3mm package and requires only a minimal number of readily-available, standard, external components. The MP2147 is ideal for a wide range of applications, including storage (SSD, HDD), high- performance DSPs, FPGAs, and distributed power systems. FEATURES Up to 4A Output Current Wide 2.8V-to-5.5V Operating Input Range 22mΩ and 14mΩ Internal Power MOSFETs 40µA Quiescent Current 1.2MHz Fixed Switching Frequency 1% Feedback Accuracy External Mode Control External VCON Control Adjustable Output from 0.6V 1.5ms Internal SS Time with Pre-Bias Startup Cycle-by-Cycle Over Current Protection Short Circuit Protection with Hiccup Mode Stable with Low-ESR Output Ceramic Capacitors Thermal Shutdown Available in a 2mm×3mm QFN Package Output Discharge Function APPLICATIONS Storage (SSD, HDD) Portable Instruments Battery-Powered Devices All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION 0 10 20 30 40 50 60 70 80 90 100 0.01 0.1 1 10 |
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