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MP2143 Arkusz danych(PDF) 1 Page - Monolithic Power Systems |
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MP2143 Arkusz danych(HTML) 1 Page - Monolithic Power Systems |
1 / 14 page MP2143 3A, 5.5V, 1.2MHz, 40μA IQ, COT Synchronous Step Down Switcher MP2143 Rev. 1.07 www.MonolithicPower.com 1 7/4/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. The Future of Analog IC Technology DESCRIPTION The MP2143 is a monolithic, step-down, switch- mode converter with internal power MOSFETs. It can achieve up to 3A continuous output current from a 2.5V–to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated as low as 0.6V. Constant-on-time control provides fast transient response and eases loop stabilization. Fault- condition protections include cycle-by-cycle current limiting and thermal shutdown. The MP2143 is available in small TSOT23-8 package and requires only a minimal number of readily-available standard external components. The MP2143 is ideal for a wide range of applications including high-performance DSPs, FPGAs, smartphones, portable instruments, and DVD drivers. FEATURES Wide 2.5V-to-5.5V Operating Input Range Output Voltage as Low as 0.6V 100% Duty Cycle in Dropout Up to 3A Output Current Low IQ: 40µA 80mΩ and 40mΩ Internal Power MOSFET Switches Default 1.2MHz Switching Frequency EN and Power-Good for Power Sequencing Cycle-by-Cycle Over-Current Protection Auto Discharge at Power Off Short-Circuit Protect with Hiccup Mode Stable with Low-ESR Output Ceramic Capacitors Available in a TSOT23-8 Package APPLICATIONS Low Voltage I/O System Power Handheld/Battery-powered Systems Wireless/Networking Cards 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 MP2143 PGND AGND FB VIN C1 10 F EN VIN 2.5V to 5.5V VOUT 1.2V/2A SW C2 10 F R1 200k R2 200k PG EN PG OUT L1 1 H 2 8 1 4 6 7 5 3 |
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