BL9362 Power Management IC – 0.6A High-Side DC/DC Buck Converter | 4.5–60V, 2MHz, SOT23-6

The BL9362 is a high-voltage Power Management IC featuring a built-in high-side MOSFET and DC/DC step-down (buck) topology, optimized for smart meters and industrial power applications.
It supports a wide 4.5V to 60V input voltage range and provides an adjustable output voltage using a 0.795V feedback reference.

Operating in PWM/PFM automatic mode, the BL9362 delivers up to 0.6A output current while achieving efficiency up to 95%.
Its 2MHz switching frequency enables compact external components and reduced PCB size, making it suitable for space-constrained high-voltage designs.

Key Specifications

• Input Voltage (VIN): 4.5V – 60V

• Output Voltage (VOUT): Adjustable (VFB = 0.795V)

• Output Current (IOUT): Up to 0.6A

• Quiescent Current (IQ): 0.65mA

• Switching Frequency (FOSC): 2MHz

• Efficiency: Up to 95%

• Max Duty Cycle: 87%

• Output Accuracy: ±2%

• Power Switching: Built-in high-side MOSFET

• Operating Mode: PWM / PFM

• Package: SOT23-6

Applications

• Smart meters

• Industrial power supplies

• High-voltage DC/DC conversion

• Embedded industrial electronics

Features

• Wide 4.5–60V input voltage range

• High-frequency 2MHz operation

• High-side integrated MOSFET

• Automatic PWM/PFM mode

• High efficiency up to 95%

• Compact SOT23-6 package