DESCRIPTION

The LT®3023 is a dual, micropower, low noise, low drop out regulator. With an external 0.01μF bypass capacitor, output noise drops to 20μVRMS over a 10Hz to 100kHz bandwidth. Designed for use in battery-powered systems, the low 20μA quiescent current per channel makes it an ideal choice. In shutdown, quiescent current drops to less than 0.1μA. Shutdown control is independent for each channel, allowing for flexibility in power management. The device is capable of operating over an input voltage from 1.8V to 20V, and can supply 100mA of output current from each channel with a dropout voltage of 300mV. Quiescent current is well controlled in dropout.

FEATURES

Low Noise: 20μVRMS (10Hz to 100kHz)
Low Quiescent Current: 20μA/Channel
Wide Input Voltage Range: 1.8V to 20V
Output Current: 100mA/Channel
Very Low Shutdown Current: <0.1μA
Low Dropout Voltage: 300mV at 100mA
Adjustable Output from 1.22V to 20V
Stable with 1μF Output Capacitor
Stable with Aluminum, Tantalum or Ceramic Capacitors
Reverse Battery Protected
No Reverse Current
No Protection Diodes Needed
Overcurrent and Overtemperature Protected
Thermally Enhanced 10-Lead MSOP and DFN Packages

Applications

Cellular Phones
Pagers
Battery-Powered Systems
Frequency Synthesizers
Wireless Modems