MPQ2143HGD-Z

MPQ2143H 3A, 5.5V, 2.0MHz Synchronous Step Down Switcher DESCRIPTION FEATURES The MPQ2143H is a monolithic, step-down, switch-mode converter with internal power MOSFETs. It can achieve up to 3A continuous output current from a 2.5V to 5.5V input voltage with excellent load and line regulation. The output voltage can be regulated as low as 0.6V.      Constant-on-time control provides fast transient response and eases loop stabilization. Faultcondition protections include cycle-by-cycle current limiting and thermal shutdown.       The MPQ2143H is available in small QFN-10 package and requires only a minimal number of readily-available standard external components. The MPQ2143H is ideal for a wide range of applications including high-performance DSPs, FPGAs, and portable instruments.  Wide 2.5V to 5.5V Operating Input Range Output Voltage as Low as 0.6V 100% Duty Cycle in Dropout Up to 3A Output Current 80mΩ and 40mΩ Internal Power MOSFET Switches Default 2.0MHz Switching Frequency EN and Power-Good for Power Sequencing Cycle-by-Cycle Over-Current Protection Auto Discharge at Power Off Short-Circuit Protect with Hiccup Mode Stable with Low-ESR Output Ceramic Capacitors Available in QFN-10 (2mmx3mm) Package APPLICATIONS    Low Voltage I/O System Power Handheld/Battery-powered Systems Wireless/Networking Cards All MPS parts are lead-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 U1 VIN L1 VOUT SW VIN OUT C1 MPQ2143H EN EN PG PG C2 R1 FB R2 GND MPQ2143H Rev. 1.0 www.MonolithicPower.com 8/12/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. 1 MPQ2143H – 3A, 5.5V, 2.0MHz, SYNCHRONOUS STEP-DOWN SWITCHER ORDERING INFORMATION Part Number* MPQ2143HGD Package QFN-10(2mmx3mm) Top Marking See Below * For Tape & Reel, add suffix –Z (e.g. MPQ2143HGD–Z). TOP MARKING AMT: product code of MPQ2143HGD; Y: year code; WW: week code: LLL: lot number; PACKAGE REFERENCE QFN-10 (2mmx 3mm) MPQ2143H Rev. 1.0 www.MonolithicPower.com 8/12/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. 2 MPQ2143H – 3A, 5.5V, 2.0MHz, SYNCHRONOUS STEP-DOWN SWITCHER ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance (4) Supply Voltage VIN .........................................6V VSW………………………… -0.3V (-5V for