LT1761ES5-1.2#TRMPBF - Low Noise, Low Dropout Micropower Regulator

The LT1761ES5-1.2#TRMPBF is a high-performance, low dropout micropower regulator from Linear Technology, designed to deliver a well-regulated and low noise output voltage with high efficiency. This regulator is particularly suitable for battery-powered systems where power efficiency and low quiescent current are essential for extending battery life.

Key Features:

• Output Voltage: The device provides a fixed output voltage of 1.2V, which is ideal for powering low voltage electronics.
• Low Dropout Voltage: It boasts a very low dropout voltage, typically only 300mV at a 100mA load, ensuring efficient operation even when the input voltage is close to the output voltage.
• Low Noise: With an exceptionally low output noise of only 20µVRMS, the LT1761ES5-1.2#TRMPBF is perfect for noise-sensitive applications such as RF circuits and precision instrumentation.
• High Output Current: The device can deliver up to 100mA of output current, making it suitable for a wide range of applications.
• Low Quiescent Current: The quiescent current is a mere 20µA, which significantly enhances battery life in portable applications.
• Stable with Low ESR Output Capacitors: The regulator is stable with output capacitors as low as 1µF, which can be ceramic, tantalum, or aluminum electrolytic types, offering flexibility in design.
• Thermal Protection: It includes thermal shutdown protection to safeguard the device under over-temperature conditions.
• Reverse Battery Protection: The LT1761ES5-1.2#TRMPBF can withstand a reverse battery connection without damage.
• No Protection Diodes Needed: Internal circuitry eliminates the need for additional protection diodes.

Applications:

The regulator's combination of low noise, high output current, and low quiescent current makes it an excellent choice for portable and battery-powered equipment, including:

• Cellular Phones
• Wireless and RF Devices
• GPS Receivers
• Medical Devices
• Personal Digital Assistants (PDAs)
• Portable Instruments
• MP3 Players

The LT1761ES5-1.2#TRMPBF is available in a small SOT-23 package, making it an ideal solution for space-constrained applications. Its robust design and comprehensive feature set ensure reliable performance for a vast array of electronic devices.