MPQ4470/4470A High-Efficiency, Fast-Transient, 5A, 36V Synchronous, Step-Down Converter AEC-Q100 Qualified The Future of Analog IC Technology DESCRIPTION FEATURES The MPQ4470/4470A is a fully-integrated, high- Wide 4.5V-to-36V Operating Input Range frequency, synchronous, rectified, step-down, Guaranteed 5A, Continuous Output Current switch-mode converter. It offers a very compact Internal 40m High-Side, 20m Low-Side solution to achieve a 5A, continuous-output Power MOSFETs current over a wide input-supply range with Proprietary Switching-Loss-Reduction excellent load and line regulation. It also Technology provides fast transient response and good 1% Reference Voltage stability for wide input-supply and load range. Programmable Soft-Start Time The MPQ4470/4470A operates at high Low Drop-out Mode efficiency over a wide output current load range. 100kHz-to-1MHz Switching Frequency MPQ4470 has full protection features include SCP, OCP, OVP Latch (MPQ4470 only), SCP, OCP, OVP latch, UVP, and thermal UVP, and Thermal Shutdown shutdown. MPQ4470A has the same protection Output Adjustable from 0.8V to 0.9V IN features to MPQ4470 except has no OVP latch Available in a 3mm4mm 20-pin QFN function. Package Available in AEC-Q100 Grade 1 The MPQ4470/4470A requires a minimal number of readily-available, standard, external APPLICATIONS components, and is available in a space-saving Notebook Systems and I/O Power 3mm4mm, 20-pin, QFN package. Automotive Systems Networking Systems Industrial Supplies Optical Communications Systems Distributed Power and POL Systems 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 8,19,21,22,23 100 90 C1 MPQ4470/ 0.1F L1 10F 4470A 80 10H 9,10,17,18,24,25 70 R5 R3 R1 499k 63.4k C5 31.6k 60 620k 390pF 2X22F 1F 50 40 30 10k 20 C6 10 33nF 0 0.01 0.1 1 10 OUTPUT CURRENT (A) MPQ4470/4470A Rev. 1.12 www.MonolithicPower.com 1 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. MPS. All Rights Reserved. MPQ4470/4470AHIGH-EFFICIENCY, FAST-TRANSIENT, SYNCHRONOUS, STEP-DOWN CONVERTER, AEC-Q100 QUALIFIED ORDERING INFORMATION Part Number* Package Top Marking MPQ4470GL QFN20 (3mm4mm) 4470 MPQ4470AGL QFN20 (3mm4mm) 4470A MPQ4470GL-AEC1 QFN20 (3mm4mm) 4470 MPQ4470AGL-AEC1 QFN20 (3mm4mm) 4470A * For Tape & Reel, add suffix Z (e.g. MPQ4470/4470AGLZ) PACKAGE REFERENCE 20 19 18 17 1 16 21 IN 2 15 24 SW 3 14 22 IN 4 13 25 SW 5 12 23 IN 6 11 78 910 QFN20 (3mm4mm) (4) (1) Thermal Resistance JA JC ABSOLUTE MAXIMUM RATINGS QFN20 (3mm4mm) ............... 48 ...... 10 ... C/W Supply Voltage V ....................................... 40V IN V ....................................... -0.3V to V + 0.3V SW IN Notes: 1) Exceeding these ratings may damage the device. V .....................................................V + 6V BST SW 2) The maximum allowable power dissipation is a function of the V .................................... -0.3V to V +0.6V PGOOD CC maximum junction temperature T(MAX), the junction-to- J All Other Pins ................................. -0.3V to +6V ambient thermal resistance , and the ambient temperature JA T . The maximum allowable continuous power dissipation at A EN Sink Current ....................................... 150A any ambient temperature is calculated by P (MAX)=(T (MAX)- D J (2) Continuous Power Dissipation (T = +25C) T )/ . Exceeding the maximum allowable power dissipation A A JA will cause excessive die temperature, and the regulator will go .2.6W into thermal shutdown. Internal thermal shutdown circuitry Operating Junction Temperature ............. 150C protects the device from permanent damage. 3) The device is not guaranteed to function outside of its Lead Temperature ................................... 260C operating conditions. Storage Temperature ............... -65C to +150C 4) Measured on JESD51-7, 4-layer PCB. (3) Recommended Operating Conditions Supply Voltage V .......................... 4.5V to 36V IN Output Voltage V ................... 0.8V to 0.9V OUT IN Operating Junction Temp. (T ). -40C to +125C J MPQ4470/4470A Rev. 1.12 www.MonolithicPower.com 2 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. MPS. All Rights Reserved.