MP2918 4V to 40V Input, Current Mode, Synchronous, Step-Down Controller DESCRIPTION FEATURES The MP2918 is a high-voltage, synchronous, Wide 4V to 40V Operating Input Range step-down, switching controller that can directly Dual N-Channel MOSFET Driver step down voltages from up to 40V. The 0.8V Voltage Reference with 1.5% MP2918 uses PWM current control architecture Accuracy Over Temperature with accurate cycle-by-cycle current limit and is Low Dropout Operation: Maximum Duty capable of driving dual N-channel MOSFET Cycle at 99.5% switches. Programmable Frequency Range: 100kHz - 1000kHz Advanced Asynchronous Mode (AAM) enables External Sync Clock Range: 100kHz- non-synchronous operation to optimize light- 1000kHz load efficiency. 180 Out-of-Phase SYNCO Pin The operating frequency of the MP2918 can be Programmable Soft Start (SS) programmed by an external resistor or Power Good (PG) Output Voltage Monitor synchronized to an external clock for noise- Selectable Cycle-by-Cycle Current Limit sensitive applications. Full protection features Output Over-Voltage Protection (OVP) include precision output over-voltage protection Hiccup Over-Current Protection (OCP) (OVP), output over-current protection (OCP), Internal LDO with External Power Supply and thermal shutdown. Option The MP2918 is available in TSSOP20-EP and Programmable Forced CCM and AAM QFN-20 (3mmx4mm) packages. Available TSSOP20-EP and QFN-20 (3mmx4mm) Packages APPLICATIONS All MPS parts are lead-free, halogen-free, and adhere to the RoHS Automotive directive. For MPS green status, please visit the MPS website under Industrial Control Systems Quality Assurance. MPS and The Future of Analog IC Technology are registered trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION 4-40V VIN VCC1 BST IN FREQ TG VCC1 VOUT VCC1 SW PG SGND MP2918 BG VCC2 SENSE+ SENSE- EN/SYNC ILIM FB CCM/AAM SYNCO PGND COMP SS MP2918 Rev. 1.02 www.MonolithicPower.com 1 5/31/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2017 MPS. All Rights Reserved. MP2918 4V TO 40V SYNCHRONOUS STEP-DOWN CONTROLLER ORDERING INFORMATION Part Number* Package Top Marking MP2918GF** TSSOP20-EP See Below MP2918GL** QFN-20 (3mm x 4mm) See Below *For Tape & Reel, add suffix Z (e.g. MP2918GFZ) ** Under qualification TOP MARKING (TSSOP20-EP) MPS: MPS prefix YY: Year code WW: Week code MP2918: Part number LLLLLLLLL: Lot number TOP MARKING (QFN-20 (3mm x 4mm)) MP: MPS prefix: Y: year code W: week code: 2918: first four digits of the part number LLL: lot number MP2918 Rev. 1.02 www.MonolithicPower.com 2 5/31/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2017 MPS. All Rights Reserved.