Texas Instruments

LP3853ES-3.3

LP3853ES-3.3 Description

The LP3853ES-3.3 is a high-performance linear voltage regulator designed by Texas Instruments. This device is part of the Linear & Switching Voltage Regulators category and is specifically tailored for applications requiring a fixed 3.3V output with a maximum output current of 3A. The regulator is housed in a DDPAK/TO263-5 package, making it suitable for surface mount applications. With a maximum input voltage of 7V, the LP3853ES-3.3 ensures reliable operation within a wide range of input conditions. The regulator features a low dropout voltage of 0.6V at 3A, which is crucial for maintaining efficiency and performance in low-voltage applications. Additionally, the device offers a quiescent current of 4 mA, contributing to its overall efficiency and making it ideal for power-sensitive designs.

LP3853ES-3.3 Features

• Fixed Output Voltage: The LP3853ES-3.3 provides a stable 3.3V output, ensuring consistent power supply to connected devices.
• High Output Current: Capable of delivering up to 3A, this regulator can support power-hungry applications without compromising performance.
• Low Dropout Voltage: With a maximum dropout voltage of 0.6V at 3A, the regulator maintains high efficiency even at low input-to-output voltage differences.
• Enable Control Feature: The enable function allows for dynamic control of the regulator, enabling power-saving modes and precise power management.
• Protection Features: Over-current, over-temperature, and short-circuit protections ensure robustness and reliability, safeguarding the regulator and connected components from damage.
• High PSRR: A power supply rejection ratio (PSRR) of 73dB to 57dB at 120Hz helps in filtering out noise from the input supply, resulting in a cleaner output voltage.
• Compliance and Reliability: The LP3853ES-3.3 is REACH unaffected and RoHS3 compliant, meeting stringent environmental and safety standards. It also has a moisture sensitivity level (MSL) of 3, ensuring reliability in various environmental conditions.

LP3853ES-3.3 Applications

The LP3853ES-3.3 is well-suited for a variety of applications where a stable and efficient power supply is critical. Its high output current and low dropout voltage make it ideal for:

• Embedded Systems: Providing a reliable power source for microcontrollers, sensors, and other low-power devices.
• Telecommunications: Ensuring stable power delivery in base stations, routers, and other communication equipment.
• Consumer Electronics: Suitable for powering devices such as smartphones, tablets, and other portable electronics.
• Industrial Control: Ideal for powering control modules, PLCs, and other industrial automation components.
• Automotive Electronics: Reliable power supply for ECUs, infotainment systems, and other automotive electronic systems.

Conclusion of LP3853ES-3.3

The LP3853ES-3.3 from Texas Instruments is a versatile and efficient linear voltage regulator that stands out due to its high output current, low dropout voltage, and comprehensive protection features. Its fixed 3.3V output and enable control function make it a reliable choice for a wide range of applications, from consumer electronics to industrial control systems. The device's compliance with environmental and safety standards further enhances its suitability for modern electronics. For designers seeking a robust and efficient power solution, the LP3853ES-3.3 is an excellent choice.