LT1761IS5-1.5#TRMPBF - Low Noise, Low Dropout Linear Regulator

The LT1761IS5-1.5#TRMPBF is a high-performance low dropout linear regulator (LDO) designed and manufactured by Linear Technology, now part of Analog Devices. This LDO is notable for its low noise output, high power supply rejection ratio (PSRR), and low quiescent current, making it an ideal choice for precision applications that require a stable and clean power supply.

Key Features:

• Output Voltage: The device provides a fixed output voltage of 1.5V, suitable for a variety of low-voltage applications.
• Low Dropout Voltage: The LT1761 series boasts an extremely low dropout voltage, allowing the regulator to maintain a steady output even when the supply voltage is very close to the output voltage.
• Low Noise: With a low output noise of just 20µVRMS over a 10Hz to 100kHz bandwidth, this regulator ensures a clean power supply, critical for sensitive RF and analog circuitry.
• High PSRR: It features a high PSRR of 76dB at 1kHz, which reduces the impact of supply voltage fluctuations on the output voltage.
• Low Quiescent Current: The device maintains a low quiescent current of 30µA with no load, and 20µA in shutdown, making it suitable for battery-powered applications.
• Thermal Protection: Built-in thermal shutdown protection safeguards the device from overheating and potential damage.
• Small Footprint: The LT1761IS5-1.5#TRMPBF comes in a small SOT-23 package, which is ideal for space-constrained applications.

Applications:

The LT1761IS5-1.5#TRMPBF is versatile and can be used in a wide array of applications where voltage regulation with low noise is crucial. Typical applications include:

• Portable and battery-powered equipment
• Wireless and RF systems
• Medical instrumentation
• Power supplies for sensors and analog ICs
• Audio applications

With its robust feature set and compact size, the LT1761IS5-1.5#TRMPBF is a reliable choice for designers looking to improve the performance and efficiency of their power management systems while minimizing the impact on their overall design footprint.