MP1477GTF-P

MP1477 17V, 3A, 800kHz, High-Efficiency, Synchronous, Step-Down Converter with COT Control in SOT563 Package DESCRIPTION FEATURES The MP1477 is a fully integrated, highfrequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. The MP1477 offers a very compact solution that achieves 3A of continuous output current with excellent load and line regulation over a wide input range. The MP1477 uses synchronous mode operation for higher efficiency over the output current-load range.   Constant-on-time (COT) control operation provides very fast transient response, easy loop design, and very tight output regulation. Full protection features include short-circuit protection (SCP), over-current protection (OCP), under-voltage protection (UVP), and thermal shutdown. The MP1477 requires a minimal number of readily available, standard, external components and is available in a space-saving SOT563 (1.6mmх1.6mm) package.           Wide 4.2V to 17V Operating Input Range 58mΩ/27mΩ Low RDS(ON) Internal Power MOSFETs 200µA Low IQ Current High-Efficiency Synchronous Mode Operation Power Save Mode (PSM) at Light Load Fast Load Transient Response 800kHz Switching Frequency Internal Soft Start (SS) Over-Current Protection (OCP) and Hiccup Thermal Shutdown Output Adjustable from 0.8V Available in a SOT563 (1.6mmх1.6mm) Package APPLICATIONS     Security Cameras Digital Set-Top Boxes Flat-Panel Televisions and Monitors General Purposes All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are registered trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION R4 10Ω C3 1μF 12V VIN L1 2.2μH BST VIN SW R1 40.2kΩ C1 22μF MP1477 EN MP1477 Rev. 1.0 9/12/2017 3.3V/3A VOUT EN C2 22μF x 2 FB R3 75kΩ R2 13kΩ GND www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 1 MP1477 – SYNCHRONOUS, STEP-DOWN CONVERTER WITH INTERNAL MOSFETS ORDERING INFORMATION Part Number* MP1477GTF Package SOT563 (1.6mmх1.6mm) Top Marking See Below * For Tape & Reel, add suffix –Z (e.g. MP1477GTF–Z) TOP MARKING AUC: Product code of MP1477GTF Y: Year code LLL: Lot number PACKAGE REFERENCE TOP VIEW SOT563 (1.6mmх1.6mm) MP1477 Rev. 1.0 9/12/2017 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 2 MP1477 – SYNCHRONOUS, STEP-DOWN CONVERTER WITH INTERNAL MOSFETS ABSOLUTE MAXIMUM RATINGS (1) VIN ................................................ -0.3V to 18V VSW ............................ -0.6V (-6.5V for