The LT1761ES5-1.8#TR from Linear Technology is a high-performance, low dropout voltage regulator designed to provide a stable and clean power supply in a variety of applications. This component is particularly well-suited for portable and battery-powered devices due to its low noise output, high efficiency, and low quiescent current.

Key Features

• Output Voltage: 1.8V fixed output with high accuracy.
• Low Dropout Voltage: Capable of delivering up to 100mA of output current with a very low dropout voltage, which enhances efficiency and allows operation closer to the battery end-of-life.
• Low Noise: With only 20uV RMS of output noise over a 10Hz to 100kHz bandwidth, it is ideal for noise-sensitive applications such as RF and precision analog circuits.
• Low Quiescent Current: A quiescent current of 20uA (typical) in operation and 1uA in shutdown ensures minimal battery drain when the device is active or in standby.
• Stable with Low ESR Capacitors: Stability with ceramic capacitors as low as 1uF allows for smaller, more cost-effective solutions.
• Thermal Protection: Built-in thermal shutdown protection safeguards the device from potential damage due to overheating.
• Reverse Battery Protection: No reverse current flow from output to input protects the device in the event of reverse battery installation.

Applications

The LT1761ES5-1.8#TR is versatile and can be used in a wide range of applications, including:

• Portable and battery-powered equipment
• Wireless and RF systems
• Medical devices
• Automotive electronics
• Power supply for DSPs and microcontrollers

Package and Availability

This voltage regulator comes in a compact TSOT-23 package, which is suitable for space-constrained applications. The LT1761ES5-1.8#TR is available in tape and reel format, denoted by the '#TR' suffix, facilitating easy integration into automated manufacturing processes.

Conclusion

With its combination of low dropout, low noise, and high power supply rejection ratio (PSRR), the LT1761ES5-1.8#TR from Linear Technology is an excellent choice for designers looking for a reliable and efficient voltage regulator for their sensitive electronic applications.