MP1492DS-LF

MP1492 2A, 4.2V-16V Input, Fast Transient Synchronous Step-down Converter The Future of Analog IC Technology DESCRIPTION FEATURES The MP1492 is a fully integrated, high Wide 4.2V to 16V Operating Input Range efficiency 2A synchronous rectified step-down 2A Output Current converter. The MP1492 operates at high Adaptive COT for Fast Transient efficiency over a wide output current load range. Response Adaptive Constant-On-Time (COT) control Low R (ON) Internal Power MOSFETs DS mode provides fast transient response, eases Proprietary Switching Loss Reduction loop stabilization, and operates with a low-cost Technique electrolytic capacitor. Programmable Switching Frequency OCP, SCP, OVP, UVP Protection and The MP1492 requires a minimum number of Thermal Shutdown readily available standard external components and is available in an 8-pin SOIC ROHS Output Adjustable from 0.805V to 13V compliant package. APPLICATIONS Digital Set Top Boxes Flat Panel Television and Monitors Distributed Power 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. TYPICAL APPLICATION 1 4 IN VIN BST R 7 MP1492 453k 3 SW 8 VOUT 2.5V FREQ 5 R1 BYP 499k 41k 7 FB 6 ON/OFF EN R2 20k GND 2 MP1492 Rev. 1.11 www.MonolithicPower.com 1 4/13/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved. NOT RECOMMENDED FOR NEW DESIGNS REFER TO MP1476MP1492 2A, 4.2V-16V INPUT, FAST TRANSIENT SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number OCP Protection Package Top Marking Free Air Temperature (TA) Latch-off Mode MP1492DS* MP1492 -40C to +85 C SOIC8 Hiccup Mode MP1492DS-A** MP1492-A * For Tape & Reel, add suffix Z (e.g. MP1492DSZ). For RoHS Compliant Packaging, add suffix LF (e.g. MP1492DSLFZ) ** For Tape & Reel, add suffix Z (e.g. MP1492DS-AZ). For RoHS Compliant Packaging, add suffix LF (e.g. MP1492DS-ALFZ) PACKAGE REFERENCE SOIC8 (1) (4) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC SOIC8...................................... 90 ....... 45 ... C/W Supply Voltage V ........................................ 19V IN V ....................................................................... SW Notes: -0.3V (-5V for <10ns) to 19V (24V for <10ns) 1) Exceeding these ratings may damage the device. 2) The maximum allowable power dissipation is a function of the V ........................................................ V + 6V BST SW maximum junction temperature T (MAX), the junction-to- J All Other Pins .................................. -0.3V to +6V ambient thermal resistance , and the ambient temperature JA (2) Continuous Power Dissipation (T = +25C) A T . The maximum allowable continuous power dissipation at A any ambient temperature is calculated by P (MAX) = (T D J SOIC8 ...................................................... 1.39W (MAX)-T )/ . Exceeding the maximum allowable power A JA Junction Temperature .............................. 150 C dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal Lead Temperature .................................... 260 C shutdown circuitry protects the device from permanent Storage Temperature ................ -65C to +150 C damage. 3) The device is not guaranteed to function outside of its (3) Recommended Operating Conditions operating conditions. 4) Measured on JESD51-7, 4-layer PCB. Supply Voltage V ........................... 4.2V to 16V IN Output Voltage V ..................... 0.805V to 13V OUT Operating Junction Temp. (T ). -40C to +125C J MP1492 Rev. 1.11 www.MonolithicPower.com 2 4/13/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved. NOT RECOMMENDED FOR NEW DESIGNS REFER TO MP1476