LTC1844ES5-2.5#TRPBF - Low Dropout Regulator

The LTC1844ES5-2.5#TRPBF is a high-performance, low dropout linear regulator (LDO) from Linear Technology, designed to deliver a continuous output of 2.5 volts. This compact, surface-mount device is an ideal solution for portable battery-powered equipment, where efficient power management and minimal space occupation are critical. It is specifically designed to provide a stable and reliable voltage supply for sensitive electronic components.

With a low dropout voltage of just 170mV at 150mA of output current, the LTC1844ES5-2.5#TRPBF ensures efficient operation even when the input voltage is very close to the output voltage, which is particularly beneficial in single-cell Li-Ion or multi-cell alkaline/NiCd/NiMH applications. The device's ability to maintain regulation while dissipating less heat makes it a practical choice for space-constrained and thermally sensitive systems.

The LTC1844ES5-2.5#TRPBF boasts a low quiescent current of only 20µA, which significantly extends battery life in portable devices. Additionally, the quiescent current drops to less than 0.1µA in shutdown mode, providing further power conservation when the device is not in active use. This feature is particularly advantageous for applications that require long standby times.

The regulator is stable with output capacitors as low as 1µF, allowing for the use of small, space-saving ceramic capacitors, which reduces the overall footprint and cost of the power supply design. Furthermore, the LTC1844ES5-2.5#TRPBF includes over-temperature and over-current protection, enhancing the safety and reliability of the end application.

Its small form factor is encapsulated in a TSOT-23 package, which is suitable for automated assembly processes, and the part number suffix 'TRPBF' indicates that the device is provided in tape and reel packaging, which is optimized for high-volume production environments.

In summary, the LTC1844ES5-2.5#TRPBF from Linear Technology is a highly efficient, low dropout regulator with features that make it an excellent choice for portable and space-constrained applications requiring a stable and reliable power supply.