STMicroelectronics

LD29080PT18R

LD29080PT18R Description

The LD29080PT18R is a linear voltage regulator designed by STMicroelectronics, offering a fixed output voltage of 1.8V and a maximum output current of 800mA. This regulator is housed in a PPAK package, making it suitable for surface-mount applications. It features a maximum input voltage of 13V and a dropout voltage of 0.7V at 800mA, ensuring efficient operation even under varying input conditions. The regulator includes an enable control feature and provides over-current and over-temperature protection, enhancing its reliability and safety. With a quiescent current of 180 µA and a power supply rejection ratio (PSRR) of 72dB at 120Hz, the LD29080PT18R is optimized for low-power and low-noise applications. Despite being marked as obsolete, it remains a viable option for specific legacy designs and applications.

LD29080PT18R Features

• Output Type: Fixed, providing a stable 1.8V output voltage.
• Input Voltage Range: Up to 13V, allowing for a wide range of input sources.
• Output Current: Capable of delivering up to 800mA, suitable for moderate-power applications.
• Dropout Voltage: Low dropout voltage of 0.7V at 800mA, ensuring high efficiency even at low input-to-output voltage differentials.
• Control Features: Includes an enable pin for precise control over the regulator's operation.
• Protection Features: Over-current and over-temperature protection to safeguard the device and connected circuits.
• Low Quiescent Current: 180 µA, minimizing power consumption during standby or low-load conditions.
• High PSRR: 72dB at 120Hz, providing excellent noise rejection and stable output voltage.
• Package Type: PPAK, ideal for surface-mount applications and compact designs.
• Compliance: ROHS3 compliant and REACH unaffected, ensuring environmental and regulatory standards are met.

LD29080PT18R Applications

The LD29080PT18R is well-suited for a variety of applications where a stable, low-noise power supply is required. Its fixed 1.8V output and 800mA current capability make it ideal for powering microcontrollers, digital signal processors (DSPs), and other low-voltage digital circuits. The low dropout voltage ensures efficient operation in battery-powered devices or systems with varying input voltages. The enable feature allows for dynamic power management, making it suitable for applications requiring power sequencing or sleep modes. Its compact PPAK package and surface-mount compatibility make it a space-efficient solution for modern electronics designs.

Conclusion of LD29080PT18R

The LD29080PT18R is a linear robust voltage regulator with a fixed 1.8V output and 800mA current capability, housed in a compact PPAK package. It offers low dropout voltage, high PSRR, and essential protection features, making it a reliable choice for low-power, low-noise applications. Although marked as obsolete, its technical specifications and performance benefits continue to make it a suitable option for specific legacy designs and applications. For designers seeking a stable and efficient power solution, the LD29080PT18R remains a viable and effective choice.