MP1477GTF-P Monolithic Power Systems

MP1477 17V, 3A, 800kHz, High-Efficiency, Synchronous, Step-Down Converter with COT Control in SOT563 Package DESCRIPTION FEATURES The MP1477 is a fully integrated, high- Wide 4.2V to 17V Operating Input Range frequency, synchronous, rectified, step-down, 58m/27m Low R Internal Power DS(ON) switch-mode converter with internal power MOSFETs MOSFETs. The MP1477 offers a very compact 200A Low I Current Q solution that achieves 3A of continuous output High-Efficiency Synchronous Mode current with excellent load and line regulation Operation over a wide input range. The MP1477 uses Power Save Mode (PSM) at Light Load synchronous mode operation for higher Fast Load Transient Response efficiency over the output current-load range. 800kHz Switching Frequency Constant-on-time (COT) control operation Internal Soft Start (SS) provides very fast transient response, easy loop Over-Current Protection (OCP) and Hiccup design, and very tight output regulation. Thermal Shutdown Output Adjustable from 0.8V Full protection features include short-circuit Available in a SOT563 (1.6mm1.6mm) protection (SCP), over-current protection (OCP), Package under-voltage protection (UVP), and thermal shutdown. APPLICATIONS The MP1477 requires a minimal number of Security Cameras readily available, standard, external Digital Set-Top Boxes components and is available in a space-saving Flat-Panel Televisions and Monitors SOT563 (1.6mm1.6mm) package. 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 10 C3 1 F 12V L1 3.3V/3A 2.2 H VIN VOUT BST VIN SW R1 C1 C2 22 F 40.2k 22 F x 2 FB MP1477 R2 R3 13k 75k EN EN GND MP1477 Rev. 1.0 www.MonolithicPower.com 1 9/12/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2017 MPS. All Rights Reserved. MP1477 SYNCHRONOUS, STEP-DOWN CONVERTER WITH INTERNAL MOSFETS ORDERING INFORMATION Part Number* Package Top Marking MP1477GTF SOT563 (1.6mm1.6mm) See Below * For Tape & Reel, add suffix Z (e.g. MP1477GTFZ) TOP MARKING AUC: Product code of MP1477GTF Y: Year code LLL: Lot number PACKAGE REFERENCE TOP VIEW SOT563 ( 1.6mm 1. 6mm ) MP1477 Rev. 1.0 www.MonolithicPower.com 2 9/12/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2017 MPS. All Rights Reserved.