MP2158A 1A, 6V, 1.5MHz, 17 A I , COT Q Synchronous Step-Down Converter in Ultra-Small 2x1.5mm QFN-8 The Future of Analog IC Technology DESCRIPTION FEATURES The MP2158A is a monolithic step-down, Very Low I of 17 A Q switch-mode converter with built-in internal Default 1.5MHz Switching Frequency power MOSFETs. It achieves 1A of continuous 1.5% V Accuracy FB output current from a 2.5V to 6V input voltage EN and Power Good for Power Sequencing with excellent load and line regulation. The Wide 2.5V to 6V Operating Input Range output voltage can be regulated as low as 0.6V. Output Adjustable from 0.6V Up to 1A of Output Current The constant-on-time control scheme provides fast transient response and eases loop 100% Duty Cycle in Dropout stabilization. Fault condition protection includes 120m and 90m Internal Power MOSFET cycle-by-cycle current limiting and thermal Switches shutdown. Cycle-by-Cycle Over-Current Protection Short-Circuit Protection with Hiccup Mode The MP2158A is available in a small QFN-8 Stable with Low ESR Output Ceramic (1.5mmx2mm) package and requires only a Capacitors minimal number of readily available, standard, Available in a QFN-8 (1.5mmx2mm) external components. Package The MP2158A is ideal for a wide range of applications, including high-performance DSPs, APPLICATIONS FPGAs, PDAs, and portable instruments. Wireless/Networking Cards Portable Instruments Battery-Powered Devices Low Voltage I/O System Power 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 VIN VOUT 1 H 2.5V to 6V 1.2V/ 1A SW VIN C1 OUT C2 10 F 10 F R1 MP2158A 200k EN EN FB R2 PG PG 200k AGND PGND MP2158A Rev. 1.02 www.MonolithicPower.com 1 6/30/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2016 MPS. All Rights Reserved. MP2158A 1A, 6V, 1.5MHz SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* Package Top Marking MP2158AGQH QFN-8 (1.5mmx2mm) See Below * For Tape & Reel, add suffix Z (e.g. MP2158AGQHZ) TOP MARKING EC: Product code of MP2158AGQH LL: Lot number PACKAGE REFERENCE 1 8 EN PG 2 7 FB VIN 3 AGND 6 SW OUT 4 5 PGND QFN-8(1.5mmx2mm) (1) (4) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC Supply voltage (V ) .................................... 6.5V QFN-8 (1.5mmx2mm)............ 110..... 55... C/W IN V ...................................................................... SW NOTES: -0.3V (-1.5V for <20ns&-4V for <8ns) to 6.5V 1) Exceeding these ratings may damage the device. (10V for <10ns) 2) The maximum allowable power dissipation is a function of the maximum junction temperature T (MAX), the junction-to- All other pins .................................-0.3V to 6.5 V J ambient thermal resistance , and the ambient temperature JA Junction temperature ................................150C T . The maximum allowable continuous power dissipation at A any ambient temperature is calculated by P (MAX) = (T Lead temperature .....................................260C D J (MAX)-T )/ . Exceeding the maximum allowable power (2) A JA Continuous power dissipation (T = +25C) A dissipation produces an excessive die temperature, causing the regulator to go into thermal shutdown. Internal thermal ................................................ 1.14W shutdown circuitry protects the device from permanent Storage temperature................ -65C to +150 C damage. 3) The device is not guaranteed to function outside of its (3) Recommended Operating Conditions operating conditions. 4) Measured on JESD51-7, 4-layer PCB. Supply voltage (V ) ...........................2.5V to 6V IN Operating junction temp. (T )... -40C to +125C J MP2158A Rev. 1.02 www.MonolithicPower.com 2 6/30/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2016 MPS. All Rights Reserved.