MP2208DL-LF-P Monolithic Power Systems

MP2208 16V, 4A, 600kHz Synchronous Step-Down Converter The Future of Analog IC Technology DESCRIPTION FEATURES The MP2208 is an internally compensated 4A Output Current 600kHz fixed frequency PWM synchronous Input Supply Range: 3V to 16V step-down regulator. With a 3V to 6V bias 80m Internal Power MOSFET Switches supply, MP2208 operates from a 3V to 16V Stable with Ceramic Output Capacitors input and generates an adjustable output High Efficiency voltage from 0.8V to 0.9xV at up to 4A load IN 600kHz Fixed Switching Frequency current. Adjustable Output from 0.8V to 0.9xV IN The MP2208 integrates a 80m high-side Frequency Synchronization switch and a 80m synchronous rectifier for Power Good Pin high efficiency without an external Schottky Thermal Shutdown diode. With peak current mode control and Cycle-by-Cycle Current Limiting internal compensation, it can be stabilized with Short Circuit Protection ceramic capacitors and small inductors. Fault 3mmx4mm 14-lead QFN Package condition protection includes short-circuit protection, cycle-by-cycle current limiting and APPLICATIONS thermal shutdown. P/ASIC/DSP/FPGA Core and I/O Supplies The MP2208 is available in small 3mmx4mm Printers and LCD TVs 14-lead QFN packages. Network and Telecom Equipment Point of Load Regulators MPS and The Future of Analog IC Technology are Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION Efficiency vs. Load Current 100 VIN=8V V IN 3V to 16V VIN=12V 5, 10 7 95 IN BS V CC 8 4, 11 VCC SW V 3V to 6V OUT 90 1.8V / 4A MP2208 13 EN/SYNC VIN=16V 14 9 FB POK 85 SS AGND/PGND 2 1, 3, 12 C6 80 10nF VOUT=3.3V VCC=5V 75 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 LOAD CURRENT (A) MP2208 Rev. 0.92 www.MonolithicPower.com 1 5/7/2012 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2012 MPS. All Rights Reserved. EFFICIENCY (%)MP2208 16V, 4A, 600KHz SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* Package Top Marking Free Air Temperature (T ) A QFN14 (3mm x 4mm) MP2208DL 2208 40 C to +85C * For Tape & Reel, add suffix Z (e.g. MP2208DLZ) For RoHS Compliant Packaging, add suffix LF (e.g. MP2208DLLFZ) PACKAGE REFERENCE 1 14 2 13 3 12 4 11 5 10 6 9 7 8 (4) (1) Thermal Resistance JA JC ABSOLUTE MAXIMUM RATINGS QFN14 (3mm x 4mm) ............. 48 ...... 11 ... C/W IN to GND .................................... 0.3V to +18V SW to GND .......................... 0.3V to V + 0.3V IN Notes: 1) Exceeding these ratings may damage the device............................ -2.5V to V + 2.5V for < 50ns IN 2) The maximum allowable power dissipation is a function of the FB, EN/SYNC, VCC to GND .......... 0.3V to +6.5V maximum junction temperature T (MAX), the junction-to- J BS to SW .................................... 0.3V to +6.5V ambient thermal resistance , and the ambient temperature JA (2) T . The maximum allowable continuous power dissipation at A Continuous Power Dissipation (T = +25C) A any ambient temperature is calculated by P (MAX) = (T D J ......2.6W (MAX)-T )/ . Exceeding the maximum allowable power A JA Junction Temperature ............................... 150C dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal Lead Temperature .................................... 260C shutdown circuitry protects the device from permanent Storage Temperature ............... 65C to +150C damage. 3) The device is not guaranteed to function outside of its (3) Recommended Operating Conditions operating conditions. 4) Measured on JESD51-7, 4-layer PCB. Supply Voltage V .............................. 3V to 16V IN Bias Voltage V ................................... 3V to 6V CC Output Voltage V .................. 0.8V to 0.9 x V OUT IN Max Operating Junct. Temp. (T ) .......... +125C J EN/SYNC Voltage .................. No more than V CC MP2208 Rev. 0.92 www.MonolithicPower.com 2 5/7/2012 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2012 MPS. All Rights Reserved.