BL9157 Power Management IC – 150mA CMOS LDO Linear Regulator | SOT23-5 / SOT89-3

The BL9157 is a low-dropout (LDO) CMOS linear regulator offering low power consumption with high precision output.
It supports input voltages up to 30V and provides fixed output voltages of 1.8V, 2.8V, 3.3V, 3.6V, and 5V, making it ideal for battery-powered equipment and audio/video devices.

With a maximum output current of 150mA, low quiescent current, and high output accuracy, it ensures reliable regulation in compact designs. Available in SOT23-5 and SOT89-3 packages, it is suitable for space-constrained applications.

Key Specifications

• Input Voltage (VIN): Up to 30V

• Output Voltage (VOUT): 1.8V, 2.8V, 3.3V, 3.6V, 5V

• Output Current (IOUT): Up to 150mA

• Output Accuracy: ±1%

• PSRR: 60dB @217Hz

• Package: SOT23-5, SOT89-3

Applications

• Battery-powered equipment

• Audio and video devices

Features

• Low power consumption for efficient designs

• High precision output with ±1% accuracy

• Compact packages for space-limited PCBs