LT1761IS5-2.8#TRMPBF: Low Noise, Low Dropout Voltage Regulator

The LT1761IS5-2.8#TRMPBF is a high-performance, low dropout voltage regulator (LDO) from Linear Technology, designed to deliver a well-regulated 2.8V output from variable power supplies. This device stands out for its low noise operation and excellent transient response, making it an ideal choice for sensitive RF and analog circuitry that demands a clean power supply.

Key Features

• Low Dropout Voltage: The LT1761 series boasts a very low dropout voltage, ensuring efficient operation even when the input voltage is close to the output voltage. This feature is critical for battery-powered applications where maximizing the usage of available battery voltage is essential.
• Low Noise: With its low output noise of only 20µV RMS, this regulator is particularly suitable for noise-sensitive applications such as precision instrumentation, audio equipment, and RF systems.
• High Output Current: The device can supply up to 100mA of output current, which is sufficient for a wide range of applications, from microcontrollers to portable devices.
• Stable with Low ESR Capacitors: The LT1761IS5-2.8#TRMPBF is stable with ceramic capacitors, which have lower equivalent series resistance (ESR) compared to tantalum or aluminum electrolytic capacitors. This allows for smaller, more cost-effective, and more reliable output capacitors.
• Thermal Protection: The built-in thermal shutdown feature protects the device from damage due to overheating, ensuring long-term reliability.
• Reverse Battery Protection: The regulator is protected against reverse battery installation, which can be a critical feature in preventing damage to the device in consumer applications.

Applications

The LT1761IS5-2.8#TRMPBF is versatile and can be used in a variety of applications, including:

• Portable and battery-powered equipment
• Reference voltage sources
• RF and analog circuitry
• Medical devices
• Instrumentation

With its low noise characteristics, the LT1761IS5-2.8#TRMPBF is particularly adept at powering sensitive applications where maintaining signal integrity is paramount. Its small form factor, represented by the SOT-23 package, makes it an excellent choice for space-constrained applications.

Overall, the LT1761IS5-2.8#TRMPBF voltage regulator from Linear Technology is a reliable, high-performance solution for applications requiring a clean, stable, and efficient power supply.