Features: Low Noise: 20mVRMS (10Hz to 100kHz)
Low Quiescent Current: 30mA/Output
Wide Input Voltage Range: 1.8V to 20V
Output Current: 100mA/500mA
Very Low Shutdown Current: <0.1mA
Low Dropout Voltage: 300mV at 100mA/500mA
Adjustable Outputs from 1.22V to 20V
Stable with 1mF/3.3mF 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 16-Lead TSSOP and 12-Lead (4mm ´ 3mm) 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
FE Package ....................................... 65°C to 150°C
DE Package ...................................... 65°C to 125°C
Lead Temperature (Soldering, 10 sec).................. 300°C
DescriptionThe LT®3024 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 30mA quiescent current per output makes it an deal choice. In shutdown, quiescent current drops to less than 0.1mA. Shutdown control is independent for each output, allowing for flexibility in power management. The device is capable of o erating over an input voltage range of 1.8V to 20V. The device can supply 100mA of output current from Output 2 with a dropout voltage of 300mV. Output 1 can supply 500mA of output current with a dropout voltage of 300mV. Quiescent current is well controlled in dropout.
The LT3024 regulator is stable with output capacitors as low as 1mF for the 100mA output and 3.3mF for the 500mA output. 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 LT3024 regulator is available in the thermally enhanced 16-lead TSSOP and 12-lead, low profile (4mm x 3mm x0.75mm) DFN packages.
LT3024 Data Sheet
