LP3986BL-3030/NOPB

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LP3986BL-3030/NOPB is a 6A, low voltage, fixed frequency, step-down converter featuring internal switch current sensing and an integrated low side MOSFET designed for cost-sensitive applications. It is well suited for powering processors and other system or peripheral components over a broad range of voltage and current conditions. With its wide input voltage range and its internal current sensing, it can provide very low quiescent current in light load situations while still providing the peak current required to support system power needs.

Application Field

The LP3986BL-3030/NOPB is designed for use in a variety of applications requiring a low-cost, highly integrated solution for providing a stable voltage for digital circuits. It is suitable for use in computer systems, consumer electronics, automotive systems, USB-based peripherals, communication devices, handheld devices, digital imaging equipment, and battery powered systems.

This part is optimized for cost-sensitive applications needing a reliable, high performance dc-dc converter for step down and buck applications.

Features

• High Efficiency: Low component count reduces board space
• Wide Input Voltage Range: 4.5V to 30V
• Low Output Voltage: Output voltage range adjustable down to 1.2V
• High Output Current: 6A
• Fixed Frequency Operation: No external component required
• Integrated current sensing
• Integrated low side MOSFET
• Load Regulation: 0.2%
• Low Quiescent Current: 0.2mA
• Thermal Protection
• Over-Temperature Protection

Package

The LP3986BL-3030/NOPB is available in an 8-lead, tiny package. It is designed to offer a very small footprint with improved thermal transfer.

Working Principle

The LP3986BL-3030/NOPB is a simple yet efficient buck regulator. It is a non-synchronous, fixed frequency, buck regulator. The input voltage from the power source is converted into the desired output voltage through a process of voltage regulation. Voltage regulation is the process of maintaining an output voltage at a constant level despite changes in the input voltage. The LP3986BL-3030/NOPB uses a synchronous rectifier, which is a power semiconductor device used to rectify alternating current (AC) input voltage into a direct current (DC) output voltage. The regulator also uses an error amplifier, which compares the difference between the input and output voltages and provides a signal to the power switch, which is used to control the flow of current within the regulator. The integrated low-side MOSFET ensures that the output voltage remains at a constant level. This ensures that the device can operate in a wide range of conditions with minimal power loss.

Conclusion

The LP3986BL-3030/NOPB is an integrated, low input voltage, DC-DC switching regulator. It is designed with an integrated low side MOSFET, which improves system efficiency and thermal performance. The wide input voltage range and low quiescent current make the device suitable for cost-sensitive applications. The regulator provides a high efficiency, low component count, small package, and output voltage range down to 1.2V.

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