• 0-3A Step-down Regulator
• Operational Input Supply Voltage Range: 3.0V-5.5V (short durations to 6.5V)
• Integrated PMOS and NMOS
• Hysteretic Control Offers Best Transient Response
• PWM Switching at a Constant 1.65MHz
• Input Under-voltage and Over-voltage Protection
• Enable and Power Good Function
• Internal Soft-start
• Cycle-by-Cycle Over Current Protection
• Hiccup Mode Protects Against Short Circuit Faults
• RoHS Compliant & Halogen Free

The LX7176 is a 3A step-down regulator with integrated MOSFETs placed in a space saving QFN12 2mm x 2mm package for today’s mobile devices. It uses an ultra fast, constant frequency hysteretic control method and a high switching frequency to minimize external filter components while maintaining excellent regulation. The LX7176 has a fixed 0.6V reference, Power Good, and Enable pins. The LX7176 operates from 3.0V to 5.5V rails. Cycle-by-cycle current limiting protects against overcurrent conditions. The LX7176 operates in hiccup mode to further enhance the robustness of the converter for heavy over-load or short-circuit faults and it automatically recovers once the fault clears. Thermal protection shuts down the regulator under over-temperature conditions. Over voltage conditions will immediately shut off the output to protect against permanent damage.