MP2229GQ-Z

MP2229 High Efficiency 21V, 6A Synchronous Step-Down Converter with External Sync, Low-Power Mode, and External Soft-Start DESCRIPTION FEATURES The MP2229 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a compact solution to achieve a 6A continuous output current over a wide input-supply range with excellent load and line regulation. The MP2229 has synchronous-mode operation for higher efficiency over the output current load range.    Current-mode operation provides fast transient response and eases loop stabilization. Full protection features include over-current protection (OCP) and thermal shutdown (TSD).       Wide 4.5V to 21V Operating Input Range 6A Output Current Low 40mΩ/18mΩ RDS(ON) of Internal Power MOSFETs Programmable Switching Frequency Frequency SYNC from 300KHz to 2MHz External Clock Low-Power Mode Selectable by an External Signal External Soft-Start Pre-Bias Start-Up OCP with Hiccup Mode Thermal Shutdown Output Adjustable from 0.6V Available in a QFN-14 (3mmx3mm) Package    The MP2229 requires a minimal number of readily available, standard, external components and is available in a space-saving 3mm x 3mm 14-pin QFN package. APPLICATIONS      DSL Modems Cable Modems Set -Top Boxes Telecom Distributed Power 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 VIN C5 0.1µF C1 10µFx3 off on C3 0.1µF IN VCC EN EN LPM FREQ/SYNC R4 30k MP2229 Rev. 1.0 5/2/2018 BST L1 1µH 1V/6A SW R1 20k MP2229 LPM FB FREQ/SYNC GND SS VOUT C2 22µFx3 R3 68k R2 30k C4 22nF www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 1 MP2229 – 21V, 6A SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number MP2229GQ* Package QFN-14 (3mm×3mm) Top Marking See Below * For Tape & Reel, add suffix –Z (eg. MP2229GQ–Z); TOP MARKING AGQ: product code of MP2229GQ; Y: year code; LLL: lot number; PACKAGE REFERENCE QFN-14 (3mmx3mm) MP2229 Rev. 1.0 5/2/2018 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 2 MP2229 – 21V, 6A SYNCHRONOUS STEP-DOWN CONVERTER ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance (5) VIN ................................................ -0.3V to 24V VSW .................................................................... -0.3V (-5V for 5A, an additional input capacitor may be needed to reduce the inputvoltage ripple for better stability. For VOUT=5V application, when VIN is lower than 7V and IOUT>5A, an additional input capacitor may be needed to reduce the input-voltage ripple for better stability. MP2229 Rev. 1.0 5/2/2018 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 21 MP2229 – 21V, 6A SYNCHRONOUS STEP-DOWN CONVERTER PACKAGE INFORMATION QFN-14 (3mmx3mm) PACKAGE OUTLINE DRAWING FOR 14L FCQFN (3X3MM)-3 MF-PO-D-0158 revision 0.0 PIN 1 ID 0.175x45° TYP. PIN 1 ID MARKING PIN 1 ID INDEX AREA BOTTOM VIEW TOP VIEW SIDE VIEW 0.175x45° NOTE: 1) ALL DIMENSIONS ARE IN MILLIMETERS. 2) EXPOSED PADDLE SIZE DOES NOT INCLUDE MOLD FLASH. 3) LEAD COPLANARITY SHALL BE 0.10 MILLIMETERS MAX. 4) JEDEC REFERENCE IS MO-220. 5) DRAWING IS NOT TO SCALE. RECOMMENDED LAND PATTERN NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. MP2229 Rev. 1.0 5/2/2018 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 22