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BUY UC39432D https://www.utsource.net/itm/p/814444.html
2 A max constant current LED driver
Description: The UC39432D is a high-efficiency, low-dropout (LDO) linear regulator with an adjustable output voltage from 0.8V to 5.0V. Features: - Output voltage range: 0.8V to 5.0V - Output current: up to 1A - Dropout voltage: 0.2V (typical) - Low quiescent current: 10μA (typical) - High power supply rejection ratio: 70dB (typical) - Over-temperature protection - Short-circuit protection Applications: - Automotive - Industrial - Consumer electronics - Battery-powered systems - Portable devices (For reference only)