MP8760GL-Z Monolithic Power Systems

MP8760 High Efficiency, 6A, 18V, Synchronous, Step-Down Converter The Future of Analog IC Technology DESCRIPTION FEATURES The MP8760 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 6A output current over a Internal Bias wide input-supply range with excellent load and 6A Output Current line regulation. The MP8760 operates at high Low R Internal Power MOSFETs DS(ON) efficiency over a wide output-current load range. Proprietary Switching-Loss-Reduction Technique The MP8760 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 MP8760 is available in a 3mm4mm QFN All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For package, and requires a minimal number of 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 100 90 80 70 60 50 40 30 0.01 0.1 1 10 MP8760 Rev. 1.3 www.MonolithicPower.com 1 6/21/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2016 MPS. All Rights Reserved. NOT RECOMMENDED FOR NEW DESIGNS REFER TO MP2236MP8760 6A, 18V, SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number Package Top Marking MP8760GL* QFN-13 (3mm4mm) MP8760 MP8760GLE** QFN-16 (3mm4mm) MP8760E * For Tape & Reel, add suffix Z (e.g. MP8760GLZ) ** For Tape & Reel, add suffix Z (e.g. MP8760GLEZ) 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 9 10 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) Thermal Resistance V ...................................... 0.3V to V + 0.3V JA JC SW IN V (30ns) ................................. 3V to V + 3V QFN (34mm) ........................ 46 ....... 9 .... C/W SW IN V .....................................................V + 6V BST SW Notes: (2) .................................................... Enable Current I 2.5mA EN 1) Exceeding these ratings may damage the device. 2) Refer to the section Configuring the EN Control. All Other Pins ................................ 0.3V to +6V 3) The maximum allowable power dissipation is a function of the (3) Continuous Power Dissipation (T =+25) maximum junction temperature T (MAX), the junction-to- A J ambient thermal resistance , and the ambient temperature JA QFN34 ..................................................... 2.7W TA. The maximum allowable continuous power dissipation at Junction Temperature .............................. 150C any ambient temperature is calculated by P (MAX)=(T (MAX)- D J T )/ . Exceeding the maximum allowable power dissipation Lead Temperature ................................... 260C A JA will cause excessive die temperature, and the regulator will go Storage Temperature .............. 65C to +150C into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage. (4) Recommended Operating Conditions 4) The device is not guaranteed to function outside of its operating conditions. Supply Voltage V .......................... 4.5V to 18V IN 5) Measured on JESD51-7, 4-layer PCB. Output Voltage V .................... 0.611V to 13V OUT I ................................................ 0mA to 1mA EN Operating Junction Temp. (T ). 40C to +125C J MP8760 Rev. 1.3 www.MonolithicPower.com 2 6/21/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2016 MPS. All Rights Reserved. NOT RECOMMENDED FOR NEW DESIGNS REFER TO MP2236