BLQ78L05 LDO Voltage Regulator, 36V Input, 100mA Output, Fixed 5V, SOT-89-3 / SOP-8 Package

The BLQ78L05 is a fixed-output low-dropout (LDO) linear voltage regulator designed to provide a stable 5V supply from high-voltage inputs up to 36V. With a maximum output current of 100mA, it is suitable for low-power control circuits, industrial modules, and general-purpose voltage regulation. Its low quiescent current and integrated protection features ensure reliable operation, while multiple package options (SOT-89-3 and SOP-8) provide flexibility for both compact and standard PCB designs.

Key Specifications

Input Voltage (VIN): Up to 36V

Output Voltage (VOUT): 5V (fixed)

Output Current (IOUT): Up to 100mA

Regulator Type: Low-Dropout (LDO) linear regulator

Quiescent Current: Low consumption

Protection: Thermal shutdown and current limit (typical)

Packages: SOT-89-3, SOP-8

Applications

• Microcontroller power supply

• Industrial control boards

• Adapter-powered electronics

• Instrumentation and sensors

• General 5V regulation from high input voltage

Features

• Fixed 5V output with good regulation

• Wide input voltage capability up to 36V

• Low quiescent current for efficient standby operation

• Built-in thermal and overcurrent protection

• Available in compact SOT-89-3 and SOP-8 packages