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MAX15053 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX15053 Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 21 page High-Efficiency, 2A, Current-Mode Synchronous, Step-Down Switching Regulator General Description The MAX15053 high-efficiency, current-mode, synchro- nous step-down switching regulator with integrated power switches delivers up to 2A of output current. The device operates from 2.7V to 5.5V and provides an output voltage from 0.6V up to 94% of the input voltage, making the device ideal for distributed power systems, portable devices, and preregulation applications. The MAX15053 utilizes a current-mode control archi- tecture with a high gain transconductance error ampli- fier. The current-mode control architecture facilitates easy compensation design and ensures cycle-by-cycle current limit with fast response to line and load transients. The MAX15053 offers selectable skip-mode functionality to reduce current consumption and achieve a higher effi- ciency at light output load. The low RDS(ON) integrated switches ensure high efficiency at heavy loads while min- imizing critical inductances, making the layout design a much simpler task with respect to discrete solutions. Utilizing a simple layout and footprint assures first-pass success in new designs. The MAX15053 features a 1MHz, factory-trimmed, fixed- frequency PWM mode operation. The high switching fre- quency, along with the PWM current-mode architecture, allows for a compact, all-ceramic capacitor design. The MAX15053 offers a capacitor-programmable soft- start reducing inrush current, startup into PREBIAS operations, and a PGOOD open-drain output that can be used as an interrupt and for power sequencing. The MAX15053 is available in a 9-bump (3 x 3 array), 1.65mm x 1.65mm WLP package and is specified over the -40NC to +85NC temperature range. Applications Distributed Power Systems Preregulators for Linear Regulators Portable Devices Notebook Power Server Power IP Phones Features S Internal 30mI (typ) RDS(ON) High-Side and 18mI (typ) Low-Side MOSFETs at 5V S Continuous 2A Output Current Over Temperature S 96% Efficiency with 3.3V Output at 2A S 1% Output Voltage Accuracy Over Load, Line, and Temperature S Operates from 2.7V to 5.5V Supply S Cycle-by-Cycle Overcurrent Protection S Adjustable Output from 0.6V to Up to 0.94 x VIN S Programmable Soft-Start S Factory-Trimmed, 1MHz Switching Frequency S Stable with Low-ESR Ceramic Output Capacitors S Safe-Startup Into Prebiased Output S External Reference Input S Skip-Mode Functionality S Enable Input/Power-Good Output S Fully Protected Against Overcurrent and Overtemperature S Input Undervoltage Lockout 19-5240; Rev 0; 5/10 +Denotes a lead(Pb)-free/RoHS-compliant package. Ordering Information EVALUATION KIT AVAILABLE _______________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. PART TEMP RANGE PIN-PACKAGE MAX15053EWL+ -40°C to +85°C 9 WLP |
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