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The LT3066EDE is a low-power, low-noise, low-dropout voltage (LDO) linear regulator that operates within an input voltage range of 1.8V to 45V. The LT3066EDE can provide an output current of 500mA and a typical differential voltage of 300mV. A single external capacitor provides programmable low-noise benchmark performance and output soft-start functionality.

Its main characteristics

Input voltage range: 1.8V to 45V

Output current: 500mA

Active output discharge

Differential pressure voltage: 300mV

Programmable precise current limit: ±10%

Good marking of power supply

Input filtering is used to achieve high PSRR

Low noise: 25μVRMS (10Hz to 100kHz)

Adjustable output (VREF = VOUT(MIN) = 600mV)

Output tolerance: ±2% (across the entire voltage, load and temperature range)

It can remain stable when low ESR ceramic output capacitors (with a minimum capacitance value of 3.3μF) are used

A single capacitor is used to achieve a soft start for the reference and reduce output noise

Return current limit protection

Shutdown current: <3μA

Reverse battery and thermal limit protection

12-pin 4mm x 3mm DFN package

Application scenarios

Battery-powered system

Automobile power supply

Industrial power supply

Avionics power supply

Portable instrument

The LT3066EDE achieves voltage regulation and start-up control through a single external capacitor, making it suitable for scenarios with high requirements for power consumption and stability.

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