MP2147GD-Z

MP2147 The Future of Analog IC Technology 5.5V, 4A, 1.2MHz, High-Efficiency, 40μA IQ Constant On-Time Synchronous, Step-Down Switcher DESCRIPTION FEATURES The MP2147 is a monolithic, step-down, switchmode converter with internal power MOSFETs. It can achieve up to 4A continuous output current from a 2.8V-to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated to as low as 0.6V.              Constant-on-time control provides a fast transient response and eases loop stabilization. Fault condition protections include cycle-by-cycle current limiting and thermal shutdown. The MP2147 is available in a small QFN2×3mm package and requires only a minimal number of readily-available, standard, external components. The MP2147 is ideal for a wide range of applications, including storage (SSD, HDD), highperformance DSPs, FPGAs, and distributed power systems.    Up to 4A Output Current Wide 2.8V-to-5.5V Operating Input Range 22mΩ and 14mΩ Internal Power MOSFETs 40µA Quiescent Current 1.2MHz Fixed Switching Frequency 1% Feedback Accuracy External Mode Control External VCON Control Adjustable Output from 0.6V 1.5ms Internal SS Time with Pre-Bias Startup Cycle-by-Cycle Over Current Protection Short Circuit Protection with Hiccup Mode Stable with Low-ESR Output Ceramic Capacitors Thermal Shutdown Available in a 2mm×3mm QFN Package Output Discharge Function APPLICATIONS    Storage (SSD, HDD) Portable Instruments Battery-Powered Devices 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 100 90 80 70 60 50 40 30 20 10 0 0.01 MP2147 Rev. 1.1 6/8/2016 0.1 1 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. 10 1 MP2147 – 5.5V, 4A, 1.2MHz, COT, BUCK SWITCHER ORDERING INFORMATION Part Number* MP2147GD Package QFN-12 (2mmx3mm) Top Marking See Below * For Tape & Reel, add suffix –Z (e.g. MP2147GD–Z). TOP MARKING ALH: product code of MP2147GD; Y: year code; LLL: lot number; PACKAGE REFERENCE TOP VIEW GND GND GND 12 11 10 SW 1 OUT 2 FB VIN 3 9 SW 8 VIN 7 PG 5 4 6 RAMP EN MODE/VCON QFN-12 (2mm×3mm) MP2147 Rev. 1.1 6/8/2016 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. 2 MP2147 – 5.5V, 4A, 1.2MHz, COT, BUCK SWITCHER ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance Supply Voltage VIN ......................................... 6V VSW ...................................................................... –0.3V (-3V for