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MP2148 数据表(PDF) 1 Page - Monolithic Power Systems |
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MP2148 数据表(HTML) 1 Page - Monolithic Power Systems |
1 / 20 page MP2148 1A Synchronous Step-down Converter with 11µA Iq in Ultra-small 1x1.5mm QFN MP2148 Rev. 1.11 www.MonolithicPower.com 1 5/25/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. The Future of Analog IC Technology DESCRIPTION The MP2148 is a monolithic, step-down, switch- mode converter with built-in internal power MOSFETs. It achieves 1A continuous output current from a 2.3V-to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated to as low as 0.6V. The Constant-On-Time control scheme provides fast transient response and eases loop stabilization. Fault protections include cycle-by- cycle current limiting and thermal shutdown. The MP2148 is available in an ultra-small QFN- 6 (1.0mmx1.5mm) package and requires a minimal number of readily available standard external components. The MP2148 is ideal for a wide range of applications including high performance DSPs, wireless power, portable and mobile devices, and other low-power systems. FEATURES • Low IQ: 11μA • 2.2MHz Switching Frequency • EN for Power Sequencing • Power Good Only for Fixed Output Version • Wide 2.3V-to-5.5V Operating Input Range • Output Adjustable from 0.6V • Up to 1A Output Current • 120mΩ and 80mΩ Internal Power MOSFET Switches • Output Discharge • 100% Duty Cycle • Short-Circuit Protection with Hiccup Mode • Stable with Low ESR Output Ceramic Capacitors • Available in a QFN-6 (1.0mmx1.5mm) Package APPLICATIONS • Wireless/Networking Cards • Portable and Mobile Devices • Battery Powered /Wearable Devices • Low Voltage I/O System Power 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 MP2148 GND FB VIN C1 10μF EN VIN 5V VOUT 1.2V/1A SW C2 10μF R1 200kΩ R2 200kΩ EN OUT L1 1μH |
类似零件编号 - MP2148 |
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类似说明 - MP2148 |
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