STMicroelectronics

LD2985AM31R

LD2985AM31R Description

The LD2985AM31R is a fixed-output linear regulator from STMicroelectronics, designed to provide a stable 3.1V output voltage with a maximum output current of 150mA. This regulator is housed in a compact SOT23-5 package, making it suitable for surface-mount applications. Despite its small size, the LD2985AM31R offers robust performance, including a low dropout voltage of 0.575V at 150mA, ensuring efficient operation even at low input voltages. The regulator also features an enable control function, allowing for dynamic power management and reduced power consumption when not in use.

LD2985AM31R Features

• Output Type: Fixed
• Input Voltage Range: Up to 16V
• Output Voltage: Fixed at 3.1V
• Output Current: Up to 150mA
• Number of Regulators: 1
• Output Configuration: Positive
• Supply Current: Maximum of 4mA
• Dropout Voltage: 0.575V at 150mA
• Quiescent Current: 150µA
• Power Supply Rejection Ratio (PSRR): 45dB at 1kHz
• Protection Features: Over-current and over-temperature protection
• Control Features: Enable function
• Compliance: REACH Unaffected, ROHS3 Compliant
• Mounting Type: Surface Mount
• Package: Tape & Reel (TR)
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

LD2985AM31R Applications

The LD2985AM31R is ideal for a variety of applications where a stable and efficient power supply is required. Its low dropout voltage and compact size make it particularly suitable for battery-powered devices and portable electronics. The enable function allows for dynamic power management, making it ideal for applications where power consumption needs to be minimized during standby or sleep modes. The regulator's over-current and over-temperature protection features ensure reliable operation in demanding environments.

Conclusion of LD2985AM31R

The LD2985AM31R from STMicroelectronics is a high-performance linear regulator that offers a stable 3.1V output with a maximum current of 150mA. Its low dropout voltage and compact SOT23-5 package make it an excellent choice for space-constrained applications. The enable function and protection features further enhance its versatility and reliability. While the product is marked as obsolete, it remains a robust solution for applications requiring a fixed-output linear regulator with advanced control and protection features.