MPQ8626 16V, 6A, High Efficiency, Synchronous, Step-Down Converter with Adjustable Current Limit The Future of Analog IC Technology Proprietary Switching Loss Reduction DESCRIPTION Technique The MPQ8626 is a fully integrated, high- Adaptive Constant-On-Time (COT) for frequency, synchronous, buck converter. The Ultrafast Transient Response MPQ8626 offers a very compact solution that Stable with Zero ESR Output Capacitor achieves up to 6A of output current with 0.5% Reference Voltage Over 0C to +70C excellent load and line regulation over a wide Junction Temperature Range input supply range. The MPQ8626 operates at 1% Reference Voltage Over -40C to high efficiency over a wide output current load +125C Junction Temperature Range range. Selectable Forced CCM or Pulse-Skip The MPQ8626 adopts an internally Operation compensated constant-on-time (COT) control Excellent Load Regulation that provides fast transient response and eases Output Voltage Tracking loop stabilization. Output Voltage Discharge The operating frequency can be set to 600kHz, PGOOD Active Clamped at Low Level 1100kHz, or 2000kHz easily with MODE during Power Failure configuration, allowing the MPQ8626 frequency Programmable Soft-Start Time from 1ms to remain constant regardless of the input and and Up output voltages. Pre-Bias Start-Up Selectable Switching Frequency from The output voltage start-up ramp is controlled 600kHz, 1100kHz, and 2000kHz by an internal 1.5ms timer, which can be Non-Latch for OCP, OVP, UVP, OTP, and increased by adding a capacitor on TRK/REF. UVLO An open-drain power good (PGOOD) signal Output Adjustable from 0.6V to 0.9 x VIN Up indicates if the output is within its nominal voltage range. PGOOD is clamped at around to 6V Max 0.7V with an external pull-up voltage when the Available in a QFN-14 (2mmx3mm) input supply fails to power the MPQ8626. Package Full protection features include over-current APPLICATIONS protection (OCP), over-voltage protection Telecom and Networking Systems (OVP), under-voltage protection (UVP), and Server, Cloud-Computing, Storage over-temperature protection (OTP). Base Stations The MPQ8626 requires a minimal number of General Purpose Point-of-Load (PoL) readily available, standard, external 12V Distribution Power Systems components and is available in a QFN-14 High-end TV (2mmx3mm) package. Game Consoles and Graphic Cards All MPS parts are lead-free, halogen-free, and adhere to the RoHS FEATURES directive. For MPS green status, please visit the MPS website under Quality Assurance. MPS and The Future of Analog IC Technology are Wide Input Voltage Range registered trademarks of Monolithic Power Systems, Inc. o 2.85V to 16V with External 3.3V VCC Bias o 4V to 16V with Internal VCC Bias or External 3.3V VCC Bias 6A Output Current Programmable Accurate Current Limit Level Low R Integrated Power MOSFETs DS(ON) MPQ8626 Rev. 1.02 www.MonolithicPower.com 1 12/12/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2018 MPS. All Rights Reserved. MPQ8626 16V, 6A, HIGH EFFICIENCY SYNC, STEP-DOWN CONVERTER W/ ADJUSTABLE CURRENT LIMIT TYPICAL APPLICATION CIRCUIT MPQ8626 Rev. 1.02 www.MonolithicPower.com 2 12/12/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2018 MPS. All Rights Reserved.