SIT2596 is a step-down switching regulator chip. These devices are available in fixed output voltages of 3.3V, 5V,12V and an adjustable output version. The output voltage can also be adjusted according to needs, the voltage output range is 1.2V to 37V and the input voltage is up to 40V and the output current is up to 3A. It also has excellent linear adjustment rate and load adjustment rate.The SIT2596 has an integrated frequency compensation and fixed frequency generator with a switching frequency of 150kHz, allowing the use of smaller filter elements compared to low-frequency switching chips. The fixed output voltage version requires only four peripheral components and can use common standard inductors, which optimizes the use of the SIT2596, greatly simplifies the design of the switching power supply circuit, and saves the cost and volume of the peripheral.