Analog Devices Inc.

LT3080EST

LT3080EST Description

The LT3080EST from Analog Devices Inc. is a high-performance, adjustable positive linear voltage regulator capable of delivering up to 1.1A of output current. Designed for precision applications, it features a wide input voltage range of up to 36V and an adjustable output voltage from 0V to 36V, making it highly versatile for various power supply designs. The device is housed in a compact SOT-223-3 surface-mount package, ideal for space-constrained applications.

LT3080EST Features

• Adjustable Output: Supports 0V to 36V output range, enabling flexible voltage regulation.
• High Current Capability: Delivers 1.1A continuous output current with 1.6V dropout voltage at full load.
• Robust Protection: Integrated over-current, over-temperature, and short-circuit protection ensures reliable operation.
• Low Quiescent Current: 500 µA typical quiescent current minimizes power loss in standby modes.
• Excellent PSRR: 75dB to 20dB (120Hz to 1MHz) ensures stable output under noisy input conditions.
• Single Regulator Design: Simplifies circuit design with a single positive regulator configuration.

LT3080EST Applications

• Precision Instrumentation: Ideal for lab equipment and measurement devices requiring stable, low-noise power.
• Industrial Control Systems: Suitable for PLCs, motor controllers, and automation systems due to its robust protection features.
• Portable Electronics: Efficient power management for battery-operated devices with its low dropout and quiescent current.
• Telecom Infrastructure: Reliable voltage regulation for RF modules and base stations.
• Automotive Electronics: Can be used in infotainment and sensor systems, though designers should note its obsolete status.

Conclusion of LT3080EST

The LT3080EST stands out for its wide adjustable output range, high current capability, and robust protection features, making it a strong choice for precision and industrial applications. While it is now marked as obsolete, its performance metrics—such as low dropout voltage and high PSRR—remain competitive. Engineers should evaluate alternative solutions for new designs but may still find value in existing stock for legacy systems.