MP38671DL-LF-Z Monolithic Power Systems

MP38671 10A, 25V, 600KHz Step-Down Converter with Synchronizable Gate Driver The Future of Analog IC Technology DESCRIPTION FEATURES The MP38671 is a monolithic step-down switch Wide 4.5V to 25V Operating Input Range mode converter with a built in internal power 10A Continuous Output Current MOSFET. It achieves 10A continuous output 60m Internal Power MOSFET Switch current over a wide input supply range with Power Good Indicator excellent load and line regulation. Synchronous Gate Driver Delivers up to 95% Efficiency Current mode operation provides fast transient Fixed 600KHz Frequency response and eases loop stabilization. Synchronizable to >1MHz External Clock Fault condition protection includes cycle-by-cycle Cycle-by-Cycle Over Current Protection current limiting and thermal shutdown. Thermal Shutdown The MP38671 requires a minimum number of Output Adjustable from 0.8V to 15V readily available standard external components Stable with Low ESR Output Ceramic and is available in a space saving 3 x4mm 14-pin Capacitor QFN package. Available in a 3x4mm 14-Pin QFN Package APPLICATIONS Point of Load Regulator in Distributed Power System Digital Set Top Boxes Personal Video Recorders Broadband Communications Flat Panel Television and Monitors 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 4, 5, 6 11 IN BST 100 95 12 8, 9, 10 VCC SW 90 MP38671 2 13 PG BG 85 80 3 1 EN/SYNC FB OFF ON 75 GND 14 70 02468 10 MP38671 Rev. 1.1 www.MonolithicPower.com 1 9/2/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2014 MPS. All Rights Reserved. MP38671 10A, 25V, 600KHz STEP-DOWN WITH SYNCHRONOUS GATE DRIVER ORDERING INFORMATION Part Number* Package Top Marking Free Air Temperature (T ) A 3x4 QFN14 MP38671DL 3867 -40C to +85C * For Tape & Reel, add suffix Z (e.g. MP38671DLZ) For RoHS Compliant Packaging, add suffix LF (e.g. MP MP38671DLLFZ) PACKAGE REFERENCE TOP VIEW FB 1 14 GND PG 2 13 BG EN/SYNC 3 12 VCC IN 4 11 BST IN 5 10 SW IN 6 9 SW N/C 7 8 SW EXPOSED PAD ON BACKSIDE CONNECT TO GND (1) (4) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC Supply Voltage VIN ...................................... 28V 3x4 QFN14 ............................... 48 ....... 11 .... C/W VSW .................... -0.3V (-5V for < 10ns) to 29V Notes: VBS .................................................. VSW + 6V 1) Exceeding these ratings may damage the device. All Other Pins ................................ 0.3V to +6V 2) The maximum allowable power dissipation is a function of the maximum junction temperature T(MAX), the junction-to- J Junction Temperature .............................. 150C ambient thermal resistance , and the ambient temperature JA Lead Temperature ................................... 260C T . The maximum allowable continuous power dissipation at A any ambient temperature is calculated by P (MAX)=(T (MAX)- D J Storage Temperature .............. 65C to +150C T )/ . Exceeding the maximum allowable power dissipation A JA (3) will cause excessive die temperature, and the regulator will go Recommended Operating Conditions into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage. Supply Voltage VIN ......................... 4.5V to 25V 3) The device is not guaranteed to function outside of its operating Output Voltage VOUT ..................... 0.8V to 15V conditions. 4) Measured on JESD5 1-7, 4-layer PCB.. The exposed pad must Maximum Junction Temp. (T ) ............... +125C J be thermally connected to a ground plane (or most negative supply plane in split-supply applications). MP38671 Rev. 1.1 www.MonolithicPower.com 2 9/2/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2014 MPS. All Rights Reserved.