MP2303ADN-LF

MP2303A 3A, 28V, 360kHz Synchronous Rectified Step-Down Converter The Future of Analog IC Technology DESCRIPTION FEATURES The MP2303A is a monolithic synchronous 3A Output Current buck regulator. The device integrates a 150m Wide 4.7V to 28V Operating Input Range high-side MOSFET and a 80m low-side Integrated MOSFET Switches MOSFET that provide 3A continuous load Output Adjustable from 0.80V to 25V current over a wide operating input voltage of Up to 95% Efficiency 4.7V to 28V. Current mode control provides fast Programmable Soft-Start transient response and cycle-by-cycle current Stable with Low ESR Ceramic Output Capacitors limit. Fixed 360kHz Frequency An adjustable soft-start prevents inrush current Cycle-by-Cycle Over Current Protection at turn-on. In shutdown mode, the supply Input Under Voltage Lockout current drops to lower than 1 A. Available in thermally enhanced 8-Pin SOIC and PDIP-8 packages This device, available in an 8-pin SOIC and PDIP-8 packages, provides a very compact APPLICATIONS system solution with minimal reliance on Distributed Power Systems external components. Pre-Regulator for Linear Regulators Notebook Computers 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 C5 10nF 100 V =5V IN V =12V IN 90 2 1 IN BS 80 7 3 EN SW V =28V IN V =24V IN MP2303A 8 5 70 SS FB GND COMP 4 6 60 50 V =3.3 OUT 40 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 OUTPUT CURRENT MP2303A Rev.1.1 www.MonolithicPower.com 1 7/25/2012 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2012 MPS. All Rights Reserved. NOT RECOMMENDED FOR NEW DESIGNS REFER TO MP2338MP2303A 3A, 28V, 360kHz SYNCHRONOUS RECTIFIED, STEP-DOWN CONVERTER ORDERING INFORMATION Part Number Package Top Marking Free Air Temperature (T ) A MP2303ADN* SOIC8E M2303ADN -40 C to +85 C MP2303ADP** PDIP8 MP2303A -40 C to +85 C * For Tape & Reel, add suffix Z (e.g. MP2303ADNZ) For RoHS compliant packaging, add suffix LF (e.g. MP2303ADNLFZ) ** For Tape & Reel, add suffix Z (e.g. MP2303ADPZ) For RoHS compliant packaging, add suffix LF (e.g. MP2303ADPLFZ) PACKAGE REFERENCE TOP VIEW TOP VIEW BS 1 8 SS BS 1 8 SS IN 2 7 EN IN 2 7 EN SW 3 6 COMP SW 3 6 COMP GND 4 5 FB GND 4 5 FB MP2303A PD01-PDIP8 (1) (4) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC Supply Voltage V ........................ -0.3V to +30V IN SOIC8E .................................. 50 ...... 10 ... C/W Switch Voltage V .................. -1V to V + 0.3V SW IN PDIP8 .................................... 105 ..... 45 ... C/W Boost Voltage V .......... V - 0.3V to V + 6V BS SW SW Notes: All Other Pins .................................. -0.3V to +6V 1) Exceeding these ratings may damage the device. Junction Temperature ............................... 150C 2) The maximum allowable power dissipation is a function of the maximum junction temperature T (MAX), the junction-to- Continuous Power Dissipation (T = J A (2) ambient thermal resistance , and the ambient temperature JA +25C) T . The maximum allowable continuous power dissipation at A SOIC8E ...................................................... 2.5W any ambient temperature is calculated by P (MAX) = (T D J (MAX)-T )/ . Exceeding the maximum allowable power A JA PDIP8 ........................................................ 1.2W dissipation will cause excessive die temperature, and the Lead Temperature .................................... 260C regulator will go into thermal shutdown. Internal thermal Storage Temperature .............. -65C to +150C shutdown circuitry protects the device from permanent damage. (3) 3) The device is not guaranteed to function outside of its Recommended Operating Conditions operating conditions. Input Voltage V .............................. 4.7V to 28V IN 4) Measured on JESD51-7, 4-layer PCB.. Output Voltage V ....................... 0.80V to 25V OUT Maximum Junction Temp. (T ) ................ +125C J MP2303A Rev.1.1 www.MonolithicPower.com 2 7/25/2012 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2012 MPS. All Rights Reserved. NOT RECOMMENDED FOR NEW DESIGNS REFER TO MP2338