MP4566DD-LF-P Monolithic Power Systems

MP4566 36V, 1MHz, 0.6A Step-Down Converter With 35 A Quiescent Current The Future of Analog IC Technology DESCRIPTION FEATURES The MP4566 is a high frequency (1MHz) step- 35A Quiescent Current down switching regulator with integrated Low Shutdown Mode Current: <2 A internal high-side high voltage power MOSFET. Wide 4.5V to 36V Operating Input Range It provides single 0.6A (or less) highly efficient 450m Internal Power MOSFET output with current mode control for fast loop Fixed 1MHz Switching Frequency response. Internally compensated Stable with Ceramic Output Capacitors The wide 4.5V to 36V input range accommodates a variety of step-down Internal Soft-Start applications in automotive input environment. Precision Current Limit Without Current The very low shutdown mode quiescent current Sensing Resistor allows use in battery-powered applications. High Light Load Efficiency up to 77% at 1mA High power conversion efficiency over a wide +1.0V FB Reference Voltage load range is achieved by scaling down the Output Adjustable from +1.0V to 0.8xV IN switching frequency at light load condition to 2mmx3mm QFN8 Package reduce the switching and gate driving losses. Frequency fold-back helps prevent inductor APPLICATIONS current runaway during start-up. Thermal Adapter-Based/Handheld Applications shutdown provides reliable, fault-tolerant Notebook/Netbook PCs operation. Automotive Systems The MP4566 is available in a 2mmx3mm QFN8 Industrial Power Systems package. Distributed Power Systems Battery Powered Systems All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. 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 Efficiency vs. Load Current C3 V =3.3V OUT L1 2 100 3 VOUT BST SW 3.3V/0.6A 90 VIN 4 C2 VIN 4.5V to 36V D1 C1 80 MP4566 R3 70 V =6V 1 IN BIAS 60 V =12V IN 5 OFF ON EN R1 50 V =24V IN 7 FB 40 GND 6 R2 30 V =36V IN C5 20 39pF 0.0001 0.001 0.01 0.1 1 LOAD CURRENT (A) MP4566 Rev. 1.03 ww.MonolithicPower.com 1 12/10/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2015 MPS. All Rights Reserved. MP456636V, 1MHz, 0.6A, STEP-DOWN CONVERTER WITH 35A QUIESCENT CURRENT ORDERING INFORMATION Part Number Package Top Marking Free Air Temperature (T ) A MP4566DD QFN8 (2mmx3mm) See Below -40 C to +85C * For Tape & Reel, add suffix Z (eg. MP4566DDZ) For RoHS, compliant packaging, add suffix LF (eg. MP4566DDLFZ). TOP MARKING 5P: product code of MP4566DD Y: year code W: week code: LLL: lot number PACKAGE REFERENCE MP4566 Rev. 1.03 ww.MonolithicPower.com 2 12/10/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2015 MPS. All Rights Reserved.