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MAX15066]
The MAX15066 current-mode, synchronous, DC-DC buck converter delivers an output current up to 4A with high efficiency. The MAX15066 operates from an input voltage of 4.5V to 16V and provides an adjustable output voltage from 0.606V to 90% of the input voltage. The MAX15066 is ideal for distributed power systems, notebook computers, nonportable consumer applications, and preregulation applications.
The MAX15066 features a PWM mode operation with internally fixed 500kHz switching frequency capable of 90% maximum duty cycle. The MAX15066 automatically enters skip mode at light loads. The current-mode control architecture simplifies compensation design and ensures a cycle-by-cycle current limit and fast response to line and load transients. A high gain transconductance error amplifier allows flexibility in setting the external compensation, simplifying the design and allowing for an all-ceramic design.
The MAX15066 synchronous buck regulator features internal MOSFETs that provide better efficiency than asynchronous solutions, while simplifying the design relative to discrete controller solutions. In addition to simplifying the design, the integrated MOSFETs minimize EMI, reduce board space, and provide higher reliability by minimizing the number of external components.
Additional features include an externally adjustable soft-start, independent enable input and power-good output for power sequencing, and thermal shutdown protection. The MAX15066 offers overcurrent protection (high-side sourcing) with hiccup mode during an output short-circuit condition. The device ensures safe startup when powering into a prebiased output.
The MAX15066 is available in a 2mm x 2mm, 16-bump (4 x 4 array), 0.5mm pitch WLP package and is fully specified from -40°C to +85°C.
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