BLL2620 Power Management IC – 5A Synchronous DC/DC Buck Converter | 5–28V, 150kHz, QFN4×4-14L

The BLL2620 is a high-efficiency Power Management IC integrating a synchronous DC/DC step-down (buck) converter with built-in MOSFETs, designed for wide input voltage applications requiring stable, high-current regulation.
It supports a 5.0V to 28V input voltage range and provides an adjustable output voltage via a 0.8V feedback reference, making it suitable for wireless chargers, power delivery systems, and other battery-powered applications.

Delivering up to 5A output current, the BLL2620 ensures high efficiency of up to 97% with a typical 250µA quiescent current.
Its compact QFN4×4-14L package enables space-efficient layouts while supporting high-power density designs.

Key Specifications

• Input Voltage (VIN): 5.0V – 28V

• Output Voltage (VOUT): Adjustable (VFB = 0.8V)

• Output Current (IOUT): Up to 5A

• Switching Frequency (FOSC): 150kHz

• Topology: Synchronous Buck Converter

• Power Switching: Built-in MOSFETs

• Control Mode: PWM / PFM

• Efficiency: Up to 97%

• Output Accuracy: ±2%

• Package: QFN4×4-14L

Applications

• Wireless chargers (DPS)

• Portable power delivery systems

• Consumer electronics

• Battery-powered devices

• Embedded power rails

Features

• Wide input voltage range for high-voltage applications

• High-current output up to 5A

• Integrated synchronous MOSFETs

• High efficiency up to 97%

• Low quiescent current for energy-efficient operation

• Compact QFN4×4-14L package

• Stable and precise output regulation