LT1761IS5-1.8#TRMPBF - Low Noise, Low Dropout Voltage Regulator

The LT1761IS5-1.8#TRMPBF is a high-performance, low dropout linear voltage regulator from Linear Technology, designed to deliver a fixed output of 1.8V. This regulator is part of the LT1761 series, known for their low noise output, which makes them an ideal choice for sensitive RF and analog circuitry. The device is housed in a compact SOT-23 package, which is suitable for space-constrained applications.

With a wide input voltage range of 1.8V to 20V, the LT1761IS5-1.8#TRMPBF can deliver up to 100mA of output current. This makes it versatile enough to be used in a variety of systems, from battery-operated devices to industrial controls. Its low dropout voltage ensures efficient operation even when the input-to-output differential is minimal, thus preserving battery life in portable applications.

One of the key features of this voltage regulator is its low output noise, which is typically 20µV RMS over a 10Hz to 100kHz bandwidth. This characteristic is particularly important for precision applications, such as medical equipment and audio devices, where noise can significantly impact performance. Additionally, the LT1761IS5-1.8#TRMPBF includes a noise reduction pin for further noise minimization when used with an external bypass capacitor.

The device also incorporates several protective features to ensure reliability and longevity. It has overcurrent and overtemperature protection, safeguarding the regulator and connected components from potential damage due to abnormal operating conditions. Furthermore, the regulator has a low quiescent current of 20µA, which drops to less than 0.1µA in shutdown mode, providing an excellent solution for power conservation in battery-powered applications.

For designers and engineers looking for a stable and reliable power management solution, the LT1761IS5-1.8#TRMPBF offers a combination of low dropout performance, low noise, and robust protection features, all in a small footprint that is ideal for a wide range of applications.

Key Specifications:

• Fixed Output Voltage: 1.8V
• Output Current: Up to 100mA
• Input Voltage Range: 1.8V to 20V
• Low Dropout Voltage
• Low Output Noise: 20µV RMS (10Hz to 100kHz)
• Low Quiescent Current: 20µA
• Thermal and Overcurrent Protection
• Package: SOT-23