AE2596 is a step-down switch regulator with very good voltage regulation and load regulation. It can provide 3A of load current. It has 3.3V, 5V, and 12V fixed output voltages and adjustable output voltage (ADJ) types. The external components are few and the application is simple. It has a frequency compensation circuit and a fixed frequency oscillator. The switching frequency is 150KHz, so small filter components can be used. Each version has 5-Lead TO-220 (T), 5-Lead TO-220 (B) and 5-Lead TO-263 (S) three package types. Under the rated input voltage and output load conditions, the output voltage tolerance is ± 4% and the oscillation frequency tolerance is ± 15%. The standby current is 80μ A (typical value), and two overcurrent protection circuits and a thermal protection circuit are built in.