BL8042C Power Management IC – 1A Asynchronous DC/DC Boost Converter | 2.5–24V, 1.2MHz | SOT23-5

The BL8042C is a versatile Power Management IC integrating an asynchronous DC/DC boost converter with an internal MOSFET.
It supports a 2.5V to 24V input voltage range (up to 28V maximum) and provides an adjustable output voltage via a 0.6V feedback reference.

Operating in PWM/PFM mode, the BL8042C delivers up to 1A output current with high efficiency up to 97% and a 1.2MHz switching frequency, enabling compact designs for consumer electronics.

Key Specifications

• Input Voltage (VIN): 2.5V – 24V (28V max)

• Output Voltage (VOUT): Adjustable (VFB = 0.6V)

• Output Current (IOUT): Up to 1A

• Quiescent Current (IQ): 0.25mA

• Switching Frequency (FOSC): 1.2MHz

• Operating Mode: Asynchronous PWM / PFM

• Efficiency: Up to 97%

• Output Accuracy: ±2%

• Package: SOT23-5

Applications

• Set-top boxes (STB)

• Consumer electronics

• Boost power supplies

Features

• Wide input voltage range

• High-frequency operation

• High efficiency boost topology

• Internal MOSFET integration

• Compact SOT23-5 package