LTC1844ES5-1.8#PBF Description

LTC1844ES5-1.8#PBF is a type of low noise VLDOTM (very low dropout) linear regulator specifically optimized for low power/portable applications. The device is allowed to draw only 35μA during normal operation, independent of the dropout voltage and load current based on the internal P-channel MOSFET pass transistor requiring no base current. Moreover, it is able to deliver high output voltage accuracy, excellent transient response, stability with ultralow ESR ceramic capacitors. A suite of protection features is provided, including reverse-battery and reverse-current protection, short-circuit and thermal overload protection and output current limiting.

LTC1844ES5-1.8#PBF Features

Reverse-battery and reverse-current protection

Thermal overload protection

Wide input voltage range: 1.6V to 6.5V

Very low dropout: 90mV at 150mA

Low noise: 60μVRMS (10Hz to 100kHz)

LTC1844ES5-1.8#PBF Applications

Portable instruments and battery-powered systems

Bluetooth/802.11 cards

Cellular phones

PDAs and notebook computers