Texas Instruments

LP2985IM5-1.8

LP2985IM5-1.8 Description

The LP2985IM5-1.8 is a fixed-output linear regulator from Texas Instruments, designed to provide a stable 1.8V output voltage with a maximum output current of 150mA. This device is part of the Power Management Integrated Circuit (PMIC) category and is housed in a compact SOT23-5 package, making it suitable for surface-mount applications. The regulator features a maximum input voltage of 16V and a dropout voltage of 0.58V at 150mA, ensuring efficient operation even at low input-to-output voltage differentials. With a quiescent current of just 95 µA and a supply current of 2.5 mA, the LP2985IM5-1.8 is optimized for low-power applications. It also includes an enable control feature and robust protection mechanisms such as over-current, over-temperature, and short-circuit protection.

LP2985IM5-1.8 Features

• Output Type: Fixed 1.8V output voltage, ensuring consistent power delivery.
• Input Voltage Range: Capable of handling input voltages up to 16V, providing flexibility in power supply design.
• Output Current: Delivers up to 150mA, suitable for a wide range of low-power applications.
• Low Dropout Voltage: Maximum dropout voltage of 0.58V at 150mA, enhancing efficiency in low-voltage applications.
• Low Quiescent Current: Only 95 µA, minimizing power consumption in standby or low-load conditions.
• Enable Control: Allows for dynamic control of the regulator’s operation, enabling power-saving modes.
• Protection Features: Over-current, over-temperature, and short-circuit protection ensure reliable operation and protect against common faults.
• Package: SOT23-5 surface-mount package, ideal for compact designs and easy integration into PCBs.
• Moisture Sensitivity Level: MSL 1 (Unlimited), making it suitable for various manufacturing environments.
• Power Supply Rejection Ratio (PSRR): 45dB at 1kHz, providing excellent noise rejection and stable output voltage.

LP2985IM5-1.8 Applications

The LP2985IM5-1.8 is ideal for applications requiring a stable and efficient power supply with a fixed output voltage. Its low dropout voltage and low quiescent current make it particularly suitable for battery-powered devices, portable electronics, and low-power embedded systems. The enable control feature allows for dynamic power management, making it a great choice for applications that require power-saving modes or controlled startup and shutdown sequences. The compact SOT23-5 package and surface-mount design enable easy integration into space-constrained designs, such as IoT devices, wearables, and handheld electronics.

Conclusion of LP2985IM5-1.8

The LP2985IM5-1.8 from Texas Instruments is a high-performance linear regulator that offers a stable 1.8V output with a maximum current of 150mA. Its low dropout voltage and low quiescent current make it an efficient choice for low-power applications, while the enable control and comprehensive protection features ensure reliable operation. The compact SOT23-5 package and surface-mount design make it easy to integrate into a variety of electronic systems. Although marked as "Not For New Designs," the LP2985IM5-1.8 remains a reliable option for existing applications and provides a proven solution for stable power regulation in low-power devices.