MP8763 High Efficiency, 12A, 18V, Synchronous, Step-Down Converter The Future of Analog IC Technology DESCRIPTION FEATURES The MP8763 is a fully-integrated, high- 2.5V to 18V Operating Input Range with frequency, synchronous, rectified, step-down, External 5V Bias switch-mode converter. It offers a very compact 4.5V to 18V Operating Input Range with solution to achieve a 12A output current over a Internal Bias wide input-supply range with excellent load and 12A Output Current line regulation. The MP8763 operates at high Low R Internal Power MOSFETs DS(ON) efficiency over a wide output-current load range. Proprietary Switching-Loss-Reduction Technique The MP8763 uses Constant-On-Time (COT) Adaptive COT for Ultrafast Transient control mode to provide fast transient response Response and ease loop stabilization. 1% Reference Voltage Over Junction An external resistor programs the operating Temperature Range (0C to +125C) frequency from 200kHz to 1MHz. The Programmable Soft-Start Time frequency stays nearly constant as the input Pre-Bias Start-Up supply varies with the feed-forward Programmable Switching Frequency from compensation. 200kHz to 1MHz The default under voltage lockout threshold is Non-Latch OCP, OVP, and Thermal internally set at less than 4.1V, but a resistor Shutdown network on the enable pin can increase this Output Adjustable from 0.611V to 13V threshold. The soft start pin controls the output APPLICATIONS voltage startup ramp. An open drain power good signal indicates that the output is within Set-Top Boxes nominal voltage range. XDSL Modem/DSLAM Small-Cell Base Stations It has full integrated protection features that Personal Video Recorders include over-current protection, over-voltage Flat-Panel Televisions and Monitors protection and thermal shutdown. Distributed Power Systems The MP8763 is available in a 3mm4mm QFN All MPS parts are lead-free, halogen free, and adhere to the RoHS package, and requires a minimal number of directive. For MPS green status, please visit MPS website under Quality Assurance. readily-available components. MPS and The Future of Analog IC Technology are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION VIN BST IN C3 L1 100 RFREQ C1 SW VOUT FREQ 90 R4 C4 R1 C2 ON/OFF EN MP8763 80 FB VCC 70 C5 R3 R2 SS 60 C6 PG 50 PGND AGND 40 30 0.01 0.1 1 10 100 MP8763 Rev. 1.3 www.MonolithicPower.com 1 2/26/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved. MP8763 12A, 18V, SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number Package Top Marking MP8763GL* QFN-13(3mm4mm) MP8763 MP8763GLE** QFN-16(3mm4mm) MP8763E * For Tape & Reel, add suffix Z (e.g. MP8763GLZ) ** For Tape & Reel, add suffix Z (e.g. MP8763GLEZ) Note: The 16-pin QFN package is preferred and recommended for new designs PACKAGE REFERENCE TOP VIEW TOP VIEW IN PGND PGND 13 12 11 EN 1 FREQ 2 FB 3 SS 4 AGND 5 PG 6 VCC 7 BST 8 910 SW SW 13-Pin QFN (3x4mm) 16-Pin QFN (3x4mm) Not recommended for new design Recommended for new design (1) Follow Layout Recommendation for Best ABSOLUTE MAXIMUM RATINGS Performance Supply Voltage V ........................................ 21V IN (5) V ....................................... 0.3V to V + 0.3V SW IN Thermal Resistance JA JC V (30ns) .................................. 3V to V + 3V SW IN QFN (3mm4mm) ................... 46 ........ 9 .... C/W V ........................................................ V + 6V BST SW (2 ..................................................... Notes: Enable Current I 2.5mA EN 1) Exceeding these ratings may damage the device. All Other Pins ................................. 0.3V to +6V 2) Refer to the section Configuring the EN Control. (3) 3) The maximum allowable power dissipation is a function of the Continuous Power Dissipation (T =+25) A maximum junction temperature T(MAX), the junction-to- J QFN34 ....................................................... 2.7W ambient thermal resistance , and the ambient temperature JA T . The maximum allowable continuous power dissipation at Junction Temperature ............................... 150C A any ambient temperature is calculated by P (MAX)=(T (MAX)- D J Lead Temperature .................................... 260C T )/ . Exceeding the maximum allowable power dissipation A JA Storage Temperature ............... 65C to +150C will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal shutdown circuitry (4) protects the device from permanent damage. Recommended Operating Conditions 4) The device is not guaranteed to function outside of its Supply Voltage V ........................... 4.5V to 18V IN operating conditions. Output Voltage V ..................... 0.611V to 13V OUT 5) Measured on JESD51-7, 4-layer PCB. I ................................................... 0mA to 1mA EN Operating Junction Temp. (T ). 40C to +125C J MP8763 Rev. 1.3 www.MonolithicPower.com 2 2/26/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved.