MP2315 High Efficiency 3A, 24V, 500kHz Synchronous Step Down Converter The Future of Analog IC Technology DESCRIPTION FEATURES The MP2315 is a high frequency synchronous Wide 4.5V to 24V Operating Input Range rectified step-down switch mode converter with 3A Load Current built in internal power MOSFETs. It offers a 90m/40m Low Rds(on) Internal Power very compact solution to achieve 3A continuous MOSFETs output current over a wide input supply range Low Quiescent Current with excellent load and line regulation. The High Efficiency Synchronous Mode MP2315 has synchronous mode operation for Operation higher efficiency over output current load range. Fixed 500kHz Switching Frequency Frequency Sync from 200kHz to 2MHz Current mode operation provides fast transient External Clock response and eases loop stabilization. AAM Power Save Mode Full protection features include OCP and Internal Soft Start thermal shut down. OCP Protection and Hiccup The MP2315 requires a minimum number of Thermal Shutdown readily available standard external components Output Adjustable from 0.8V and is available in a space saving 8-pin Available in an 8-pin TSOT-23 package TSOT23 package. APPLICATIONS Notebook Systems and I/O Power Digital Set Top Boxes Flat Panel Television and Monitors All MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Products, Quality Assurance page. MPS and The Future of Analog IC Technology are registered trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION 100 95 90 85 80 75 70 65 60 0.01 0.1 1 10 MP2315 Rev. 1.01 www.MonolithicPower.com 1 1/8/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2014 MPS. All Rights Reserved. NOT RECOMMENDED FOR NEW DESIGNS REFER TO MP2393MP2315 24V, 3A SYNC STEP DOWN CONVERTER ORDERING INFORMATION Part Number* Package Top Marking MP2315GJ TSOT23-8 AGC * For Tape & Reel, add suffix Z (e.g. MP2315GJZ) PACKAGE REFERENCE TOP VIEW FB AAM 1 8 VCC IN 2 7 EN/SYNC SW 3 6 BST GND 4 5 TSOT23-8 (1) (4) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC V ................................................0.3V to +28V TSOT23-8....100..55..C/W IN V ........ 0.3V (-5V<10ns) to +28V (30V<10ns) SW Notes: V ........................................................ V +6V BST SW 1) Exceeding these ratings may damage the device. All Other Pins..................................-0.3V to +6V 2) The maximum allowable power dissipation is a function of the (2) maximum junction temperature T (MAX), the junction-to- J Continuous Power Dissipation (TA=+25C) ... ambient thermal resistance , and the ambient temperature JA ................................................................. 1.25W T . The maximum allowable continuous power dissipation at A any ambient temperature is calculated by P (MAX) = (T D J Junction Temperature...............................150C (MAX)-T )/ . Exceeding the maximum allowable power A JA Lead Temperature ....................................260C dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal Storage Temperature................. -65C to 150C shutdown circuitry protects the device from permanent (3) damage. Recommended Operating Conditions 3) The device is not guaranteed to function outside of its Supply Voltage V ............................. 4.5 to 24V operating conditions. IN 4) Measured on JESD51-7, 4-layer PCB. Output Voltage V .................... 0.8V to V *DV OUT IN Operating Junction Temp (T ).. -40C to +125C J MP2315 Rev. 1.01 www.MonolithicPower.com 2 1/8/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2014 MPS. All Rights Reserved. NOT RECOMMENDED FOR NEW DESIGNS REFER TO MP2393