MP8846 High-Efficiency, 6A, 8V, Synchronous 2 Step-Down Converter with I C Interface The Future of Analog IC Technology DESCRIPTION FEATURES The MP8846 is a high-frequency, synchronous, Wide 4.5V to 8V Operation Input Range rectified, step-down, switch-mode converter 45m /18m Low R Internal Power DS(ON) 2 with an I C control interface. It offers a very MOSFETs compact solution to achieve a 6A continuous 1% VOUT Accuracy 2 output current with excellent load and line I C Programmable Reference Range from regulation over a wide input-supply range. The 0.6V to 1.87V in 10mV Steps with Slew- MP8846 has synchronous-mode operation for Rate Control 2 higher efficiency over the output-load range. I C Selectable Switching Frequency. Default 600kHz Switching Frequency. The reference voltage level can be controlled 2 Programmable Output Voltage on-the-fly through a 3.4Mbps I C serial interface. 2 Power-Saving Mode, OTP, and OCP via I C The voltage range can be adjusted from 0.6V to 1.87V in 10mV steps. The voltage slew rate, Power Good Indication 2 switching frequency, enable, and power-saving 1-Bit I C Address Set Pin 2 mode are selectable through the I C interface. OCP in Hiccup Mode External Soft-Start Current-mode operation provides fast transient Available in a QFN3mmx3mm Package response and eases loop stabilization. Full protection features include over-current APPLICATIONS protection (OCP), over-voltage protection SoC and Media Processors (OVP), and thermal shut down (TSD). General Consumers The MP8846 requires a minimal number of Distributed Power Systems readily available, standard, external All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For components and is available in a 15-pin QFN15 MPS green status, please visit the MPS website under Quality Assurance. (3mmx3mm) package. MPS and The Future of Analog IC Technology are registered trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION R8 10 C4 0.1uF L1 4.5V-8V 100 VIN 1uH 1.2V/6A 95 VOUT C2 90 C5 R1 R9 22uFx2 47uF 34k 100k 85 80 R3 R2 EN 33k 34k 75 C1 SDA 70 R4 0.22 F SCL 100k 65 PG 60 55 C7 22nF 50 0.01 0.10 1.00 10.00 MP8846 Rev. 1.0 www.MonolithicPower.com 1 5/19/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2015 MPS. All Rights Reserved. MP8846 6A, 8V SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* Package Top Marking See Below MP8846GQ QFN-15(3mmx3mm) *For Tape & Reel, add suffix Z (e.g. MP8846GQZ) TOP MARKING APC: product code of MP8846GQ Y: year code LLL: lot number PACKAGE REFERENCE TOP VIEW QFN-15 (3mmx3mm) MP8846 Rev. 1.0 www.MonolithicPower.com 2 5/19/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2015 MPS. All Rights Reserved.