The FL1117-XX is a low-dropout three-terminal regulator with 1.0A output current ability, and the dropout voltage is specified at typical 1.1V at 1.0A current load decreasing at lower load currents.

The FL1117-XX is optimized for low voltage where transient response  and minimum input voltage are critical. It provides current limit and  thermal shutdown protection solutions. Its circuit includes a trimmed  band gap reference to assure output voltage accuracy to be within ±1%.On-chip thermal shutdown provides protection against a combination of high current and ambient temperature that would create excessive junction temperature.

The FL1117-XX is available in 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5.0V fixed-output voltage versions and ADJ output voltage version. The fixed versions integrate the adjust resistors.

The FL1117-XX is available in the industry-standard SOT-223 package.


Provides ADJ Version (VREF = 1.25V) and Fixed Voltage 1.2V,
1.5V, 1.8V, 2.5V, 3.3V, and 5.0V with Accuracy ±1% (Except 1.2V)
•Current Limit: 1.3A (Typ.)
•Dropout Voltage: 1.1V (Typ.) @ IOUT = 1A
•Regulator Stable with Low ESR MLCC
•Excellent Line Regulation: 0.001%/V (Typ.) @ IOUT = 30mA
•Excellent Load Regulation: 0.2%/A @ IOUT = 1A
•Quiescent Current: 3.5mA
•Low Output Noise
•PSRR: 70dB
•OTSD Protection
•Operation Junction Temperature: -40°C to +125°C
•Totally Lead-Free & Fully RoHS Compliant
•Halogen- and Antimony-Free. “Green” Device



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