MP1499GD-Z

MP1499 High Efficiency 5A Peak, 16V, 500kHz Synchronous Step Down Converter The Future of Analog IC Technology DESCRIPTION FEATURES The MP1499 is a high frequency synchronous Wide 4.5V to 16V Operating Input Range rectified step-down switch mode converter with 70m/25m Low R Internal Power DS(ON) built in internal power MOSFETs. It offers a MOSFETs very compact solution to achieve 5A peak Proprietary Switching Loss Reduction output current over a wide input supply range Technique with excellent load and line regulation. The Fixed 500kHz Switching Frequency MP1499 has synchronous mode operation for Sync from 200kHz to 2MHz External Clock higher efficiency over output current load range. AAM Power Save Mode External Soft Start Current mode operation provides fast transient response and eases loop stabilization. OCP Protection and Hiccup Thermal Shutdown Full protection features include over current Output Adjustable from 0.8V protection and thermal shut down. Available in a QFN10 (2x3mm) Package The MP1499 requires a minimum number of APPLICATIONS readily available standard external components and is available in a space saving 10-pin QFN Digital Set Top Boxes (2x3mm) package. Flat Panel Television and Monitors Distributed Power Systems 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 Power Systems, Inc. TYPICAL APPLICATION Efficiency vs. Output Current R5 10 V =3.3V OUT 100 V IN C1 C4 94 95 22 100nF IN BST L1 90 3.3 3 8 85 EN/SYNC SW V OUT 3.3V/5A 80 R3 V =12V IN V =5V MP1499 R8 R1 IN 100k 33k 40.2k 75 1 10 FB SS 70 65 VCC NC GND V =16V R2 C2 IN 2 5 6, 7 13k 60 C5 C6 47 22nF 55 50 0.01 0.10 1.00 10.00 OUTPUT CURRENT(A) MP1499 Rev. 1.01 www.MonolithicPower.com 1 4/13/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2016 MPS. All Rights Reserved. MP1499 16V/5A PEAK SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* Package Top Marking MP1499GD QFN10 (2x3mm) ADH * For Tape & Reel, add suffix Z (e.g.MP1499GDZ) PACKAGE REFERENCE TOP VIEW 10 FB 1 SS 2 9 VCC IN 3 8 EN/SYNC SW 4 7 GND BST 5 6 NC GND (1) (5) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC V .................................................0.3V to 17V IN QFN10 (2x3mm)..................... 65...... 13... C/W V ...................................................................... SW Notes: -0.3V (-5V for <10ns) to 17V(19V for <10ns) 1) Exceeding these ratings may damage the device. V ........................................................ V +6V BST SW 2) About the details of EN pins ABS MAX rating, please refer to (2) page 10, EN/SYNC control section. All Other Pins............................ 0.3V to 6.5 V 3) The maximum allowable power dissipation is a function of the (3) Continuous Power Dissipation (T = +25C) A maximum junction temperature T (MAX), the junction-to- J ambient thermal resistance , and the ambient temperature JA ...........................................................1.92W T . The maximum allowable continuous power dissipation at A Junction Temperature...............................150C any ambient temperature is calculated by P (MAX) = (T D J (MAX)-T )/ . Exceeding the maximum allowable power A JA Lead Temperature ....................................260C dissipation will cause excessive die temperature, and the Storage Temperature................. -65C to 150 C regulator will go into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent (4) Recommended Operating Conditions damage. 4) The device is not guaranteed to function outside of its Supply Voltage V ...........................4.5V to 16V IN operating conditions. Output Voltage V ............ 0.807V to VIN*D OUT MAX 5) Measured on JESD51-7, 4-layer PCB. Operating Junction Temp. (T ). -40C to +125C J MP1499 Rev. 1.01 www.MonolithicPower.com 2 4/13/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2016 MPS. All Rights Reserved.