Features: Low Noise: 20mVRMS (10Hz to 100kHz)
Low Quiescent Current: 20mA/Channel
Wide Input Voltage Range: 1.8V to 20V
Output Current: 100mA/Channel
Very Low Shutdown Current: <0.1mA
Low Dropout Voltage: 300mV at 100mA
Adjustable Output from 1.22V to 20V
Stable with 1mF 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 PackagesApplication Cellular Phones
Pagers
Battery-Powered Systems
Frequency Synthesizers
Wireless ModemsSpecificationsIN Pin Voltage ........................................................ ±20V
OUT1, OUT2 Pin Voltage ....................................... ±20V
Input to Output Differential Voltage ....................... ±20V
ADJ1, ADJ2 Pin Voltage ......................................... ±7V
BYP1, BYP2 Pin Voltage ....................................... ±0.6V
SHDN1, SHDN2 Pin Voltage ................................. ±20V
Output Short-Circut Duration.......................... Indefinite
Operating Junction Temperature Range
(Note 2) ............................................ 40°C to 125°C
Storage Temperature Range ................. 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
DescriptionThe LT®3023 is a dual, micropower, low noise, low dropout regulator. With an external 0.01mF bypass capacitor, output noise drops to 20mVRMS over a 10Hz to 100kHz bandwidth. Designed for use in battery-powered systems, the low 20mA quiescent current per channel makes it an ideal choice. In shutdown, quiescent current drops to less than 0.1mA. 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.
The LT3023 regulator is stable with output capacitors as low as 1mF. Small ceramic capacitors can be used without the series resistance required by other regulators. Internal protection circuitry includes reverse battery protection, current limiting, thermal limiting and reverse current protection. The device is available as an adjustable device with a 1.22V reference voltage.
The LT3023 regulatoris available in the thermally enhanced 10-lead MSOP and DFN packages.
LT3023 Data Sheet
