The NCP1402SN33T1 from ON Semiconductor is a highly integrated, fixed frequency, step-up DC-DC converter designed for battery-powered and low-power applications. This efficient power management integrated circuit (IC) is capable of delivering a stable 3.3 volts output from a lower voltage input, making it an excellent choice for portable devices that require a consistent power source for their operation.

Key Features

    
• Voltage Conversion: Efficiently boosts input voltages as low as 0.8V to a fixed 3.3V output, enabling the use of single-cell batteries.
    
• Output Current: Provides up to 200 mA of load current, depending on the input voltage and inductor selection.
    
• High Frequency Operation: Operates at a switching frequency of 100 kHz, allowing for the use of small inductors and capacitors, reducing the overall solution size.
    
• Low Quiescent Current: Features a low quiescent current of typically 7 µA, making it suitable for battery-powered devices where power conservation is critical.
    
• Startup Voltage: Has a startup voltage of 0.9V with a bypass pin that allows the device to continue operating down to input voltages as low as 0.8V.
  

Applications

The NCP1402SN33T1 is versatile and can be used in a variety of applications, including but not limited to:

    
• Portable electronics such as PDAs, digital cameras, and portable media players.
    
• Wireless communications devices like Bluetooth headsets and RF transceivers.
    
• Handheld medical devices where consistent voltage is necessary for accurate readings.
    
• Power backup systems that require a stable voltage rail during brownouts or voltage sags.
  

Package and Reliability

The device is available in a compact 5-pin TSOP package, which is ideal for space-constrained applications. ON Semiconductor's commitment to quality ensures that the NCP1402SN33T1 is a reliable choice for designers looking to incorporate a robust power management solution into their products.

Conclusion

In summary, the NCP1402SN33T1 from ON Semiconductor is a power-efficient, fixed-frequency step-up DC-DC converter that is perfect for a wide range of low-power, portable applications. Its ability to operate at low input voltages, coupled with its low quiescent current and small form factor, makes it an excellent choice for extending battery life and minimizing the size of the power management solution.