MP2145GD-P

MP2145 The Future of Analog IC Technology 5.5V, 6A, 1.2MHz, High-Efficiency, 40μA IQ Constant On-Time Synchronous, Step-Down Switcher DESCRIPTION FEATURES The MP2145 is a monolithic, step-down, switchmode converter with internal power MOSFETs. It can achieve up to 6A 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 MP2145 is available in a small QFN2×3mm package and requires only a minimal number of readily-available, standard, external components. The MP2145 is ideal for a wide range of applications, including storage (SSD, HDD), highperformance DSPs, FPGAs, and distributed power systems.    Up to 6A Output Current Wide 2.8V-to-5.5V Operating Input Range 20mΩ and 12mΩ Internal Power MOSFETs 40µA Quiescent Current 1.2MHz Fixed Switching Frequency 100% Duty Cycle in Dropout 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 the MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are registered trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION L1 0.47uH VIN 2.8V to 5.5V SW VIN C2 22uF OUT C1 22uF EN EN PG PG MODE/ VCON MODE / VCON C3 22uF R1 200k MP2145 MP2145 Rev. 1.12 11/29/2018 VOUT 1.2V/6A FB Ramp R2 200k Ramp GND www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 1 MP2145 – 5.5V, 6A, 1.2MHz, COT, BUCK SWITCHER ORDERING INFORMATION Part Number* MP2145GD Package QFN-12 (2mmx3mm) Top Marking AFV * For Tape & Reel, add suffix –Z (e.g. MP2145GD–Z); PACKAGE REFERENCE TOP VIEW QFN-12 (2mm×3mm) ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance (4) Supply Voltage VIN .......................................... 6V VSW ....................................................................... ……..–0.3V (-3V for