STMicroelectronics

LF18ABPT-TR  

Linear & Switching Voltage Regulators

LF18ABPT-TR Description

The LF18ABPT-TR is a high-performance linear voltage regulator from STMicroelectronics, designed to deliver a fixed output voltage of 1.8V with a maximum output current of 500mA. This regulator is housed in a PPAK package and is available in a surface-mount configuration, making it ideal for compact and high-density PCB designs. The LF18ABPT-TR is part of the LF18 series, known for its robust performance and reliability in power management applications.

LF18ABPT-TR Features

• Fixed Output Voltage: The LF18ABPT-TR provides a stable output voltage of 1.8V, ensuring consistent power delivery to sensitive electronic components.
• High Input Voltage Range: With a maximum input voltage of 16V, this regulator can handle a wide range of input voltages, making it versatile for various power supply applications.
• Low Dropout Voltage: The LF18ABPT-TR features a typical dropout voltage of 0.7V at 200mA, allowing it to maintain regulation even when the input voltage is close to the output voltage. This is particularly beneficial in battery-powered applications where the input voltage may drop over time.
• Low Quiescent Current: The regulator operates with a quiescent current of just 1mA, minimizing power consumption and extending battery life in portable devices.
• High Power Supply Rejection Ratio (PSRR): The LF18ABPT-TR offers a PSRR of 82dB at 120Hz and 60dB at 10kHz, effectively filtering out noise and ripple from the input supply, ensuring clean and stable output voltage.
• Enable Control Feature: The regulator includes an enable pin, allowing users to control the regulator's operation dynamically, which is useful for power-saving modes and system shutdown sequences.
• Protection Features: The LF18ABPT-TR incorporates over-current and over-temperature protection, safeguarding the device and connected components from potential damage due to excessive current or temperature.
• Compliance and Packaging: The LF18ABPT-TR is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and regulatory standards. It is packaged in a PPAK format and supplied on tape and reel (TR), facilitating easy handling and integration into automated assembly processes.

LF18ABPT-TR Applications

The LF18ABPT-TR is well-suited for a variety of applications requiring a reliable and efficient power supply solution. Some specific use cases include:

• Consumer Electronics: Ideal for powering low-voltage microcontrollers, sensors, and other sensitive components in devices such as smartphones, tablets, and IoT devices.
• Industrial Equipment: Suitable for industrial control systems, PLCs, and other equipment where stable and low-noise power supply is crucial for accurate operation.
• Medical Devices: The low dropout voltage and high PSRR make it suitable for medical devices where power efficiency and signal integrity are paramount.
• Automotive Electronics: The regulator's robustness and wide input voltage range make it suitable for automotive applications, including infotainment systems and electronic control units.

Conclusion of LF18ABPT-TR

The LF18ABPT-TR from STMicroelectronics stands out as a reliable and efficient linear voltage regulator, offering a combination of high performance and versatility. Its low dropout voltage, high PSRR, and low quiescent current make it an excellent choice for a wide range of applications, particularly those requiring stable power delivery and minimal power consumption. The inclusion of enable control and comprehensive protection features further enhances its usability and reliability. The LF18ABPT-TR is an ideal solution for designers looking to optimize power management in their electronic systems.

LF18ABPT-TR Documents

Download datasheets and manufacturer documentation for LF18ABPT-TR

Datasheets :

LFxx      

PCN Packaging :

Mult Dev Inner Box Chg 9/Dec/2021       Box Label Chg 28/Jul/2016      

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