The LP2950ACN-5.0/TR is a low dropout (LDO) voltage regulator manufactured by Exar Corporation. It is designed to provide a stable 5V output voltage with a low dropout voltage, making it suitable for various battery-powered and portable applications where efficiency is crucial. The regulator features a low quiescent current, which further enhances its efficiency and prolongs battery life.

Applications

• Battery-Powered Systems: Used in devices where minimizing power consumption is critical for extended battery life.
• Portable Electronics: Suitable for use in portable devices such as mobile phones, PDAs, and handheld instruments.
• Microprocessor Power Supplies: Provides a stable voltage source for microprocessors and microcontrollers.
• Post Regulation for Switching Regulators: Can be used as a post-regulator to reduce ripple and noise from switching regulators.
• Linear Regulators for Noise-Sensitive Circuits: Ideal for powering sensitive analog and RF circuits where low noise is essential.

Features

• 5V Fixed Output: Provides a stable and precise 5V output voltage.
• Low Dropout Voltage: Operates with a low input-to-output voltage differential, enabling efficient regulation even when the input voltage is close to the output voltage.
• Low Quiescent Current: Minimizes power consumption in standby mode, extending battery life.
• Short Circuit Protection: Protects the regulator and the connected load from damage due to short circuits.
• Over Temperature Protection: Shuts down the regulator when the junction temperature exceeds a safe level, preventing thermal damage.
• Reverse Battery Protection: Protects the regulator from damage if the battery is connected with reversed polarity.

Benefits

• Improved Battery Life: The low quiescent current and low dropout voltage contribute to reduced power consumption, extending the operational life of battery-powered devices.
• Enhanced System Reliability: Built-in protection features safeguard the regulator and the load from potential damage due to short circuits, over temperature, and reverse battery connections.
• Stable Voltage Supply: Provides a consistent and reliable 5V output voltage, ensuring proper operation of connected components.
• Simplified Design: Requires minimal external components, simplifying the design and reducing the overall cost of the system.
• Wide Operating Temperature Range: Functions reliably over a broad temperature range, making it suitable for various environments.

Additional Details

The LP2950ACN-5.0/TR comes in a through-hole package, making it easy to integrate into existing circuit boards. It is designed for applications requiring a stable 5V supply with minimal power loss. The regulator's robust protection features and low quiescent current make it a reliable and efficient choice for a wide range of electronic devices.

Technical Specifications:

• Output Voltage: 5V
• Dropout Voltage: Typically 380mV at 100mA
• Quiescent Current: Typically 75μA
• Operating Temperature Range: -40°C to +125°C
• Package Type: TO-92