Product Brochures

LX7165™ is a digitally controlled step-down regulator IC with integrated high side P-Channel MOSFET and low side N-Channel MOSFET, an I2C serial interface port, and fault monitoring functions. The proprietary constant frequency hysteretic control allows for minimal filter components due to its fast transient response. At lower currents, the switching frequency is lowered (PFM mode) to optimize light load efficiency and extend battery life in mobile applications.

The LX7165 will operate from 5V or 3.3V rails. The I²C serial interface allows for on the fly output voltage margining in addition to power monitoring reporting.

Cycle-by-cycle current limiting protects the regulator against over-current conditions. The LX7165 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 an over-temperature condition.

FEATURES:
o Operational Input Supply Voltage Range: 3V - 5.5V (short durations to 6.5V)
o Patented Hysteretic Control Technology
o Increased Speed and Reduced Device Bias Currentsl Technology
o Integrated PMOS and NMOS in a Ball Wafer Scale Package
o I²C Serial Interface Port