MPQ2143 3A, 5.5V, 1.2MHz, 40 A I , COT Q Synchronous Step-Down Switcher AEC-Q100 Qualified DESCRIPTION FEATURES The MPQ2143 is a monolithic, step-down, Guaranteed Industrial/Automotive Temp switch-mode converter with internal power Wide 2.5V-to-5.5V Operating Input Range MOSFETs. It can achieve up to 3A continuous Output Voltage as Low as 0.6V output current from a 2.5Vto-5.5V input 100% Duty Cycle in Dropout voltage with excellent load and line regulation. Up to 3A Output Current The output voltage can be regulated as low as Low I : 40A Q 0.6V. 80m and 40m Internal Power MOSFET Switches Constant-on-time control provides fast transient response and eases loop stabilization. Fault- Default 1.2MHz Switching Frequency condition protections include cycle-by-cycle EN and Power-Good for Power Sequencing current limiting and thermal shutdown. Cycle-by-Cycle Over-Current Protection Auto Discharge at Power Off The MPQ2143 is available in small TSOT23-8 Short-Circuit Protect with Hiccup Mode package and requires only a minimal number of Stable with Low-ESR Output Ceramic readily-available standard external components. Capacitors The MPQ2143 is ideal for a wide range of Available in a TSOT23-8 Package applications including high-performance DSPs, Available in AEC-Q100 Grade 1 FPGAs, smartphones, portable instruments, and DVD drivers. APPLICATIONS Low Voltage I/O System Power Handheld/Battery-powered Systems Wireless/Networking Cards 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 MPQ2143 MPQ2143 Rev. 1.01 www.MonolithicPower.com 1 6/23/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved. MPQ2143 3A, 5.5V, 1.2MHz, 40A I , COT SYNCHRONOUS STEP-DOWN SWITCHER Q AEC-Q100 QUALIFIED ORDERING INFORMATION Part Number Package Top Marking MPQ2143DJ* TSOT23-8 ACE MPQ2143DJ-AEC1** TSOT23-8 ACE * For Tape & Reel, add suffix Z (e.g. MPQ2143DJZ) For RoHS compliant packaging, add suffix LF (e.g. MPQ2143DJLFZ) PACKAGE REFERENCE SOT23-8 (1) (4) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC Supply Voltage V ......................................... 6V TSOT23-8 .............................. 100 ..... 55 ... C/W IN V ........................ (-3V for < 5ns) to (V +0.3V) SW IN Notes: All Other Pins ................................. -0.3V to +6 V 1) Exceeding these ratings may damage the device. 2) The maximum allowable power dissipation is a function of the Junction Temperature ............................... 150C maximum junction temperature T (MAX), the junction-to- J Lead Temperature .................................... 260C ambient thermal resistance , and the ambient temperature JA (2) T . The maximum allowable continuous power dissipation at A Continuous Power Dissipation (T = 25C) A any ambient temperature is calculated by P (MAX) = (T D J ................................................ 1.25W (MAX)-T )/ . Exceeding the maximum allowable power A JA Storage Temperature ............... -65C to +150C dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal (3) shutdown circuitry protects the device from permanent Recommended Operating Conditions damage. Supply Voltage V .......................... 2.5V to 5.5V IN 3) The device is not guaranteed to function outside of its operating conditions. Output Voltage V ................. 0.6V to V -0.5V OUT IN 4) Measured on JESD51-7, 4-layer PCB. Operating Junction Temp. (T ). -40C to +125C J MPQ2143 Rev. 1.01 www.MonolithicPower.com 2 6/23/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved.