MP8736DL-LF-P Monolithic Power Systems

MP8736 High Efficiency, Fast Transient, 6A, 19V Synchronous Buck Converter in a Tiny QFN20 (3x4mm) Package The Future of Analog IC Technology DESCRIPTION FEATURES The MP8736 is a fully integrated high frequency Wide 4.5V to 19V Operating Input Range synchronous rectified step-down switch mode 6A Output Current converter. This device integrates a 12m low- Integrated 30m High-Side, 12m Low- side FET and a 30m high-side FET in a Side Power MOSFETs monolithic die. The MP8736 operates with high Proprietary Switching Loss Reduction efficiency over a wide output current load range. Technique 1% Reference Voltage Constant-On-Time (COT) control mode Programmable Soft Start Time provides fast transient response and eases loop Soft Shutdown stabilization. The MP8736 has a programmable frequency pin to optimize system performance. SCP, OCP, OVP, UVP Protection and Thermal Shutdown Full protection features include SCP, OCP, OVP, Available in a QFN20 (3x4mm) Package UVP and thermal shut down. 100kHz to 2.5MHz switching frequency* The MP8736 requires a minimum number of APPLICATIONS readily available standard external components and is available in a space saving QFN20 Networking Systems (3x4mm) package. Broadband/Optical Communication Systems Distributed Power and Point of Load Systems All MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance. MPS and The Future of Analog IC Technology are Registered Trademarks of Monolithic Power Systems, Inc. *switching frequency is only limited by on-time and is application specific TYPICAL APPLICATION Efficiency 8,19 7 IN 100 VIN BST C R7 3 C IN L2 90 V =8V IN MP8736 SW 80 9,10,17,18 2 FREQ VOUT 1.05V 20 70 VCC R C C10 4 4 V =12V R14 IN 60 100pF 100 R1 50 V =19V PGOOD IN 3 5 40 EN EN FB 30 R2 20 40.2 SS AGND PGND 10 4 1 11-16 C SS 10nF 0 0.01 0.1 1 6 I (A) O MP8736 Rev. 1.34 www.MonolithicPower.com 1 1/21/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved. F =600kHz, Vout = 1.05V SW EFFICIENCY (%)MP8736 HIGH EFFICIENCY, FAST TRANSIENT, 6A, 19V SYNCHRONOUS BUCK CONVERTER IN A TINY 3X4mm PACKAGE ORDERING INFORMATION Part Number* Package Top Marking MP8736DL QFN20 (3x4mm) 8736 * For Tape & Reel, add suffix Z (e.g. MP8736DLZ) For RoHS compliant packaging, add suffix LF (e.g. MP8736DLLFZ) PACKAGE REFERENCE TOP VIEW VCC IN SW SW 20 19 18 17 16 AGND 1 PGND IN 15 FREQ 2 PGND SW 3 14 PGND FB IN 13 PGND SS 4 SW 12 PGND EN 5 IN 11 PGND PGOOD 6 789 10 BST IN SW SW EXPOSED PAD ON BACKSIDE (4) (1) Thermal Resistance JA JC ABSOLUTE MAXIMUM RATINGS QFN20 (3x4mm) ....................... 48 ...... 10 ... C/W Supply Voltage V ........................................ 23V IN V ........................................ -0.3V to V + 0.3V SW IN Notes: 1) Exceeding these ratings may damage the device. V ......................................................... V + 6V BS SW 2) The maximum allowable power dissipation is a function of the I ......................................................... 3.5A VIN (RMS) maximum junction temperature T(MAX), the junction-to- J V ............................... -0.3V to + V + 0.6V PGOOD CC ambient thermal resistance JA, and the ambient temperature TA. The maximum allowable continuous power dissipation at All Other Pins .................................. -0.3V to +6V any ambient temperature is calculated by PD(MAX)=(TJ(MAX)- (2) Continuous Power Dissipation (T = +25C) A TA)/ JA. Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go 2.6W into thermal shutdown. Internal thermal shutdown circuitry Junction Temperature ............................... 150 C protects the device from permanent damage. 3) The device is not guaranteed to function outside of its Lead Temperature .................................... 260 C operating conditions. Storage Temperature ................ -65C to +150 C 4) Measured on JESD51-7, 4-layer PCB. (3) Recommended Operating Conditions Supply Voltage V ........................... 4.5V to 19V IN Operating Junction Temp. (T ). -40C to +125C J MP8736 Rev. 1.34 www.MonolithicPower.com 2 1/21/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved.