MP1484 – 340KHz Synchronous Rectified Step-Down Converter

MP1484 Datasheet PDF learn more.

Part number : MP1484

Functions : This is a kind of semiconductor, 340KHz Synchronous Rectified Step-Down Converter.

Pin arrangement :

Package information :

Manufacturer : MPS

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MP1484 Datasheet PDF

The texts in the PDF file :

MP1484 3A, 23V, 340KHz Synchronous Rectified Step-Down Converter PRELIMINARY SPECIFICATIONS SUBJECT TO CHANGE – INTERNAL USE ONLY The Future of Analog IC Technology DESCRIPTION The MP1484 is a monolithic synchronous buck regulator. The device integrates top and bottom 85mΩ MOSFETS that provide 3A of continuous load current over a wide operating input voltage of 4.75V to 23V. Current mode control provides fast transient response and cycle-by-cycle current limit. An adjustable soft-start prevents inrush current at turn-on and in shutdown mode, the supply current drops below 1µA. The MP1484 is PIN compatible to the MP1482 2A/23V/Synchronous Step-Down Converter. FEATURES • • • • • • • • • • • • • • • 3A Continuous Output Current Wide 4.75V to 23V Operating Input Range Integrated 85mΩ Power MOSFET Switches Output Adjustable from 0.925V to 20V Up to 95% Efficiency Programmable Soft-Start Stable with Low ESR Ceramic Output Capacitors Fixed 340KHz Frequency Cycle-by-Cycle Over Current Protection Input Under Voltage Lockout Thermally Enhanced 8-Pin SOIC Package FPGA, ASIC, DSP Power Supplies LCD TV Green Electronics/Appliances Notebook Computers APPLICATIONS “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION Efficiency vs Load Current 100 95 2 7 IN EN 1 BS SW VIN = 5V VIN = 12V 90 EFFICIENCY (%) 3 85 80 75 70 65 60 55 50 0.1 1.0 LOAD CURRENT (A) 10 8 SS GND 4 FB COMP 6 5 MP1484 Rev. 0.1 3/21/2008 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2008 MPS. All Rights Reserved. 1 MP1484 – 3A, 23V, 340KHz SYNCHRONOUS RECTIFIED STEP-DOWN CONVERTER PRELIMINARY SPECIFICATIONS SUBJECT TO CHANGE – INTERNAL USE ONLY PACKAGE REFERENCE TOP VIEW BS IN SW GND 1 2 3 4 8 7 6 5 SS EN COMP FB ABSOLUTE MAXIMUM RATINGS (1) Supply Voltage VIN . [ … ]

MP1484 PDF File

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