MP1482 – 2A 18V Synchronous Rectified Step-Down Converter

Part Number: MP1482

Function: 2A 18V Synchronous Rectified Step-Down Converter

Manufacturer: MPS


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MP1482 image

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MP1482 2A, 18V Synchronous Rectified Step-Down Converter The Future of Analog IC Technology Description The MP148 2 is a monolithic synchr onous buck regulator. T he device integrates t wo 130m Ω MOSFETs, and provides 2A of cont inuous load current over a wide input voltage of 4.75V to 18V. Current mode control pro vides fast transient re sponse and cycle-by-cycle current limit. An adjustab le soft-start prevents inrush current at turn-on, and in shut down mode the supply current drops to 1µA. This device, available in an 8-pin SOI C package, provides a very compact solution with minimal external components. Features  2A Output Current  Wide 4.75V to 18V Operating Input Range  Int egrated 130mΩ Power MOSFET Switches  Output Adjustable from 0.923V to 15V  Up to 93% Efficiency  Programma ble Soft-Start  Stable withLow ESR Ce ramic Ou tput Capacitor s  Fixed 340kHz Frequency  Cycle-by-Cycle Over Current Protection  Input Under Voltage Lockout  8–Pin SOIC Applications  Distributed Power Systems  Networking Systems  FPGA, DSP, ASIC Power Supplies  Green Electronics/ Appliances  Notebook Computers All MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Products, Quality Assurance page. “MPS” and “The Future of Analog IC Technology” are registered trademarks of Monolithic Pow er Systems, Inc. TYPICAL APPLICATION INPUT Efficiency vs Load Current 100 95 2 7 IN EN 1 BS 3 SW VOUT = 3.3V VOUT = 2.5V 90 EFFICIENCY (%) 85 80 75 70 65 60 55 50 0 MP1482 8 SS GND 4 FB COMP 6 5 0.5 1.0 1.5 2.0 LOAD CURRENT (A) 2.5 MP1482 Rev. 1.31 7/9/2012 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2012 MPS. All Rights Reserved. 1 http:// MP1482 – 2A, 18V SYNCHRONOUS RECTIFIED, STEP-DOWN CONVERTER ORDERING INFORMATION Part Number MP1482DS- Package SOIC8 Top Marking MP1482DS Free Air Temperature (TA) -40C to +85C – For Tape & Reel, add suffix –Z (e.g. MP1482DS–Z); For RoHS Compliant Packaging, add suffix –LF (e.g. MP1482DS–LF–Z) PACKAGE REFERENCE TOP VIEW BS IN SW GND 1 2 3 4 8 7 6 5 SS EN COMP FB SOIC8 ABSOLUTE MAXIMUM RATINGS (1) Supply Voltage VIN -0.3V to +20V Switch Node Voltage VSW 21V Boost Voltage VBS VSW – 0.3V to VSW + 6V All Other Pins -0.3V to +6V Junction Temperature .150°C Continuous Power Dissipation (TA = +25°C)(2) SOIC8……………………………………….1.38W Lead Temperature 260°C Storage Temperature -65°C to +150°C Thermal Resistance (4) SOIC8 . 90 45. C/W Notes: 1) Exceeding these ratings may damage the device 2) The maximum allowable power dissipation is a fun ct [.]

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MP1482 Datasheet

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