The Southchip SC8803QDER with DC-DC Converters QFN-32 RoHS is an integrated circuit (IC) designed for use in DC-DC applications. The device is provided in a compact 32-lead QFN package and is dedicated for a wide input voltage range from 1.8V to 5.5V. The SC8803QDER includes a fixed frequency PWM controller, oscillator, regulating FETs, catch diode, and input/output compensation components. It also has features such as adjustable operating frequency up to 2MHz, adjustable output voltage, internal soft-start, over temperature shutdown, under voltage lockout, and cycle-by-cycle current limiting. The device can be used in both step-down and step-up modules with best-in-class efficiency and ripple rejection. This makes it ideal for DC-DC power supply applications in automotive, industrial, medical, and consumer electronics.