MP2172C Datasheet | Monolithic Power Systems

DESCRIPTION The MP2172C is a monolithic, step-down, switch-mode converter with built-in internal power MOSFETs. It achieves 2A of continuous output current from a 2.38V to 5.5V input voltage range with excellent load and line regulation. The output voltage can be regulated as low as 0.6V. The constant-on-time (COT) control scheme provides fast transient response and eases loop stabilization. Fault protections include cycle-bycycle current limiting and thermal shutdown. The MP2172C is ideal for a wide range of applications, including high-performance DSPs, wireless power, portable and mobile devices, and other low-power systems. The MP2172C requires a minimal number of readily available, standard external ponents, and is available in ultra-small 1.2mmx1.6mm UTQFN packages. TYPICAL APPLICATION FEATURES - Fixed-Frequency PWM Mode - 1.1MHz Switching Frequency - EN for Power Sequencing - 1% FB Accuracy - Wide 2.38V to 5.5V Operating Input Range - Output Adjustable from 0.6V - Up to 2A Output Current - 75mΩ and 45mΩ Internal Power MOSFET Switches - 100% Duty On - Output Discharge - VOUT Over-Voltage Protection (OVP) - Short-Circuit Protection (SCP) with Hiccup Mode - Available in a UTQFN (1.2mmx1.6mm) Package APPLICATIONS - Wireless/Networking Cards - Portable Instruments - Battery-Powered Devices - Low-Voltage I/O System Power - Multi-Function Printers - Solid-State Drives All MPS parts are lead-free, halogen-free, and adhere to the Ro HS directive. For MPS green status, please visit the MPS website under Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are registered trademarks of Monolithic Power Systems, Inc. or its subsidiaries. Efficiency (%) Efficiency vs. Output Current VIN=5V, L=1μH (DCR=27mΩ) Vin=5V,Vo=1.2V...