LT1761ES5-3#TRMPBF - Low Noise, Low Dropout Voltage Regulator

The LT1761ES5-3#TRMPBF is a high-performance, low dropout voltage regulator from Linear Technology, designed to deliver a continuous output current up to 100mA with a low dropout voltage of only 300mV at full load. This regulator is an ideal choice for battery-powered systems, including handheld devices, due to its ultra-low quiescent current of 20µA, which helps to extend battery life.

Featuring a wide input voltage range from 1.8V to 20V, the LT1761ES5-3#TRMPBF provides a fixed output voltage of 3V, making it suitable for a variety of applications that require a stable and precise voltage supply. The device's low noise output, typically 20µV RMS over a 10Hz to 100kHz bandwidth, is particularly beneficial for sensitive RF and audio applications where power supply noise can affect performance.

The LT1761 series includes several built-in protection features to ensure reliable operation under diverse conditions. These include overcurrent and overtemperature protection, as well as the ability to withstand reverse battery conditions. The regulator's no reverse current flow from output to input feature also protects the device in situations where the input voltage may fall below the output voltage.

Available in a small SOT-23 package, the LT1761ES5-3#TRMPBF is designed for space-constrained applications. Its small footprint and low profile make it an excellent choice for portable devices where board space is at a premium. The device also offers fast transient response, which is essential for applications with rapidly changing loads.

For designers looking for a customizable solution, the LT1761 series offers adjustable versions with an external resistor divider to set the output voltage from 1.22V to 20V. This flexibility allows the LT1761 to be used in a broader range of applications beyond the fixed 3V output provided by the LT1761ES5-3#TRMPBF.

In summary, the LT1761ES5-3#TRMPBF from Linear Technology is a versatile, high-performance low dropout regulator that combines low noise, low quiescent current, and a wide input voltage range with robust protection features, all in a compact package suitable for a wide array of portable applications.