NCP5269MNTWG

NCP5269 is a synchronous buck controller that is optimized for converting the battery voltage or adaptor voltage into power supply rails required in notebook and desktop system. NCP5269 is designed for applications requiring dynamically selected slew-rate controlled output voltages. The soft-start is programmed by a single capacitor. Voltage identification logic-inputs select four resistor programmed set-point reference voltages that directly set the output voltage of the converter between 0.65 V to 1.5 V. NCP5269 supports high efficiency, fast transient response and provides power good signal. ON Semiconductor proprietary adaptive-ripple control enables seamless transition from CCM to DCM, where converter runs at reduced switching frequency with much higher efficiency. The part operates with input voltage ranging from 3.3 V to 28 V. NCP5269 is available in a 20-pin 3 mm x 3 mm QFN package.

• Wide Input Voltage Range: from 3.3 V to 28 V
• Three Selectable Fixed Frequency 300 kHz, 400 kHz or 600 kHz
• 2-Bit VID Selects Four Independent Voltages from 0.65 V to 1.5 V
• ±1.0% System Accuracy
• Differential Remote Output Voltage Sensing
• Soft Transient Control Reduces Inrush Current and Audio Noise
• Build-in Power-Good Masking Supports Voltage Identification (VID) On-The-Fly Transients
• Simple Resistor Programming Voltage Levels
• Programmable Soft-Start through a Single Capacitor
• Automatic Power-Saving Mode
• Input Supply Voltage Feed Forward Control
• Resistive or Lossless Inductor’s DCR Current Sensing
• Over-Temperature Protection
• Built-in Adaptive Gate Drivers
• Output Discharge Operation
• Built-in Over-Voltage, Under-Voltage and Over-Current Protection and Power Good Output
• This is a Pb-Free Device