STMICROELECTRONICS Fixed LDO Voltage Regulator, 3.3V, 800mA, DPAK-3

The STMICROELECTRONICS Fixed LDO Voltage Regulator is a high-performance, low-dropout linear voltage regulator designed for demanding electronic applications. It provides a stable 3.3V fixed output from an input voltage range of 4.75V to 15V, making it an essential component for power management in circuits where a clean, regulated supply is critical.

With a maximum output current of 800mA and a typical low dropout voltage of just 1.1V, this regulator maintains regulation even when the input voltage is very close to the output level, improving efficiency and battery life in portable devices. It features robust internal protection circuits, including current limiting and thermal shutdown, to safeguard both the regulator and your application under fault conditions.

The device offers excellent line regulation with a typical 75dB supply voltage rejection, minimising output ripple and noise from the input source. Housed in a surface-mount DPAK-3 package, it is designed for efficient PCB layout and effective heat dissipation. Its wide operating temperature range from -40°C to 125°C ensures reliable performance in harsh industrial and automotive environments.

Key Features & Specifications

• Fixed Output: Provides a stable 3.3V DC output.
• High Current: Capable of delivering up to 800mA of continuous output current.
• Low Dropout: Typical dropout voltage of 1.1V, enabling operation with low input voltages.
• Excellent Regulation: High supply voltage rejection (75dB typ) for a clean output.
• Built-in Protection: Internal current limit and thermal overload protection.
• Robust Package: Surface-mount DPAK-3 (TO-252) package for power applications.
• Wide Temperature Range: Operates from -40°C to +125°C.

Ideal for use in consumer electronics, embedded systems, telecommunications equipment, and automotive modules, this regulator is a reliable,