MP2148GQD-18-Z

MP2148 1A Synchronous Step-down Converter with 11µA Iq in Ultra-small 1x1.5mm QFN The Future of Analog IC Technology DESCRIPTION FEATURES The MP2148 is a monolithic, step-down, switchmode converter with built-in internal power MOSFETs. It achieves 1A continuous output current from a 2.3V-to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated to as low as 0.6V. • • • • • • • • The Constant-On-Time control scheme provides fast transient response and eases loop stabilization. Fault protections include cycle-bycycle current limiting and thermal shutdown. • • • • The MP2148 is available in an ultra-small QFN6 (1.0mmx1.5mm) package and requires a minimal number of readily available standard external components. • The MP2148 is ideal for a wide range of applications including high performance DSPs, wireless power, portable and mobile devices, and other low-power systems. Low IQ: 11μA 2.2MHz Switching Frequency EN for Power Sequencing Power Good Only for Fixed Output Version Wide 2.3V-to-5.5V Operating Input Range Output Adjustable from 0.6V Up to 1A Output Current 120mΩ and 80mΩ Internal Power MOSFET Switches Output Discharge 100% Duty Cycle Short-Circuit Protection with Hiccup Mode Stable with Low ESR Output Ceramic Capacitors Available in a QFN-6 (1.0mmx1.5mm) Package APPLICATIONS • • • • Wireless/Networking Cards Portable and Mobile Devices Battery Powered /Wearable Devices Low Voltage I/O System Power All MPS parts are lead-free, halogen 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 L1 1μH VIN 5V SW VIN OUT C1 10μF R1 200kΩ MP2148 EN EN C2 10μF FB GND MP2148 Rev. 1.11 5/25/2015 VOUT 1.2V/1A R2 200kΩ www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 1 MP2148 –1A SYNCHRONOUS STEP-DOWN CONVERTER WITH 11µA IQ IN ULTRA-SMALL 1X1.5mm QFN ORDERING INFORMATION Part Number* MP2148GQD MP2148GQD-12 MP2148GQD-15 MP2148GQD-18 MP2148GQD-25 MP2148GQD-33 Package QFN-6 (1.0mmx1.5mm) Top Marking See Below See Below See Below See Below See Below See Below VOUT Range Adjustable Fixed 1.2V Fixed 1.5V Fixed 1.8V Fixed 2.5V Fixed 3.3V * For Tape & Reel, add suffix –Z (e.g. MP2148GQD–Z); TOP MARKING CF: product code of MP2148GQD; LL: lot number; TOP MARKING DH: product code of MP2148GQD-12; LL: lot number; TOP MARKING DQ: product code of MP2148GQD-15; LL: lot number; MP2148 Rev. 1.11 5/25/2015 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 2 MP2148 –1A SYNCHRONOUS STEP-DOWN CONVERTER WITH 11µA IQ IN ULTRA-SMALL 1X1.5mm QFN TOP MARKING DJ: product code of MP2148GQD-18; LL: lot number; TOP MARKING DZ: product code of MP2148GQD-25; LL: lot number; TOP MARKING DN: product code of MP2148GQD-33; LL: lot number; MP2148 Rev. 1.11 5/25/2015 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 3 MP2148 –1A SYNCHRONOUS STEP-DOWN CONVERTER WITH 11µA IQ IN ULTRA-SMALL 1X1.5mm QFN PACKAGE REFERENCE TOP VIEW MP2148GQD TOP VIEW MP2148GQD-12 MP2148GQD-15 MP2148GQD-18 MP2148GQD-25 MP2148GQD-33 QFN-6 (1.0mmx1.5mm) ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance Supply Voltage VIN ........................................6 V VSW .................................................................... -0.3V (-5V for